Kalpana Kalpana (Editor)


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11 Group  Luftflotten 2 and 3
Location  English Channel
Result  German victory
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Similar  Battle of Britain, Battle of Zeeland, Battle of Boulogne, Adlertag, The Hardest Day

Battle of britain the kanalkampf by barfly 2011

The Kanalkampf (Channel Battle) was the German name for air operations by the German Luftwaffe against the British Royal Air Force (RAF) over the English Channel, which marked the beginning of the Battle of Britain in July 1940, during the Second World War. By 25 June, the Allies had been defeated in Western Europe and Scandinavia. Britain rejected peace overtures and on 16 July, Adolf Hitler issued Directive 16 to the Wehrmacht (German armed forces), ordering preparations for the invasion of Britain, under the codename Unternehmen Seelöwe (Operation Sea Lion).


The Germans needed air superiority over southern England before the invasion and the Luftwaffe was to destroy the RAF, assume command of the skies and protect the cross-channel invasion from the Royal Navy. To engage RAF Fighter Command, the Luftwaffe attacked convoys in the English Channel, which began the Battle of Britain. There is some dispute among historians about the dates for the beginning and end of the battle and British histories usually treat 10 July as the beginning. British and German writers and historians acknowledge that air battles were fought over the Channel between the Battle of France and Britain; deliberate German attacks against British coastal targets and convoys began on 4 July. During the Kanalkampf, the Luftwaffe received modest support from the E-Boats of the Kriegsmarine (German navy).

Kanalkampf LA PATRULLA AZUL Ver Tema Segunda misin Battle over Britain

Fighter Command could not adequately protect convoys and the Germans sank several British and neutral ships, at considerable cost to Fighter Command. The Royal Navy was forced to order a cessation of large convoys in Channel waters and close it to ocean-going vessels until more protection could be arranged after several weeks. On 1 August, Hitler issued Directive 17, extending Luftwaffe operations to the British mainland and RAF-related targets and on Adlertag (Eagle Day, 13 August) the main air offensive against the RAF began. The Kanalkampf had drawn out Fighter Command as intended and convoy attacks continued for several more days. Both sides had suffered losses but the Luftwaffe failed to inflict a decisive defeat on Fighter Command and the RAF; the Luftwaffe had yet to gain air superiority for Operation Sealion.

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Kanalkampf Battle of Britain The Kanalkampf by Barfly 2011 YouTube

On 2 July 1940, in the aftermath of the French surrender, Adolf Hitler decided that an invasion of Britain could only begin after achieving air superiority. On 12 July he outlined his reasoning: aerial domination over the invasion area and its sea approaches was necessary to compensate for the weakness of the Kriegsmarine. Hitler issued a directive to this end on 16 July, which ordered the Luftwaffe to prevent all air attacks on the invasion force, destroy British coast defences at the landing points and break the resistance of the British army.

Kanalkampf Polish Greatness Blog Battle of Britain Part I This Was Their

The campaign did not start against the RAF until August. Throughout the intervening period, the Luftwaffe undertook its third major operational move within the space of two months. The first had seen it push forward its Air Fleets into the Low Countries and the second into southern France. Now it was expanded into northern France and Belgium, along the English Channel coast. It took time to establish the signal system in France owing to a shortage of trained staff officers while the units replenished after losses through the Ergänzungsverbände (supplemental formations).

The logistics challenge was also evident in the lethargic build up. Matters were not helped by the fact that the Luftwaffe and army had to repair the French and Belgian infrastructure which had been badly damaged during the Battle of France. The army was forced to rebuild bridges to supply forward bases. Air bases also required rebuilding after war damage in May and June. This often meant short-range dive bombers and fighters were sent to forward airfields which were urgently in need of electricity and running water for personnel.

Upon the French surrender the Luftwaffe supply system was breaking down. For example, on 8 July only 20 of the 84 railway tanks with aviation fuel had reached the main depot at Le Mans. The transportgruppen (transport groups) could not cope and barely kept their own units running. Preparations continued at a glacial pace, since the men responsible for the organisation of German air power and its efficient transfer to the Channel, were enjoying the fruits of their new assignments in Paris. Senior staff members were distracted by victory parades and promotions, including Göring who was promoted to Reichsmarschall. During the Kanalkampf the Germans assembled powerful air forces to attack convoys in the Channel but it took about forty days after the French capitulation, for the Luftwaffe to begin its assault on the Britain.

While many Luftwaffe units returned to Germany to replace losses, Luftflotte 2 and Luftflotte 3 (Air Fleets 2 and 3) sent small numbers of bombers against British sea communications, attacking ships and laying mines. In July, the Luftwaffe transferred air units to the European coast from Hamburg to Brest in Brittany on the French Atlantic coast. By 17 July, the two air fleets had reached their intended strength for operations against southern England and the Midlands, with 1,200 medium bombers, 280 dive-bombers, 760 single-engine fighters, 220 twin-engine fighters, 50 long-range reconnaissance aircraft (90 of the medium bombers could fly bomber-reconnaissance sorties against shipping and ports) and 90 short-range reconnaissance aircraft. Luftflotte 5 in Norway, with 130 medium bombers, 30 twin-engine fighters and 30 long-range reconnaissance aircraft, exerted an indirect effect on the Kanalkampf, by making the RAF keep fighters in the north.

Evolving German strategy

The Luftwaffe did not operate over Britain in any force until France was on the brink of collapse. Diversion of effort during the continental campaign ran contrary to the German methods in concentration of force Schwerpunktprinzip (concentration principle). When German bomber crews flew over the country they did so at night; sorties were recorded in May and June 1940. When it became clear that Britain would not accede to Hitler's demands, the Luftwaffe undertook preparations to neutralise the country and end the fighting in Western Europe. This involved the transfer of two Luftflotten (Air Fleets)—Luftflotte 2 and Luftflotte 3—into France and Belgium. Over the course of June and July sporadic attacks were carried out at night, both inland and along Britain's east and southern coastlines to keep the civil population awake and to damage British morale. The attacks were ill-directed and German intentions were not clear to the British.

Night operations gave the Luftwaffe valuable experience in using night navigation equipment, such at the Knickebein (crooked leg). By taking bearings and cross-bearings on German medium-wave transmitters, aircraft could find their position sufficiently accurately to make the discovery of landmarks easy. On the night of 6/7 June, the first Luftwaffe bomb to fall on Greater London was dropped on at Addington, and small raids continued through the month. Thirteen airfields, 16 factories and 14 ports were bombed to little effect. By flying at low altitudes, it was possible for British defences to detect German bombers with searchlights. Two were shot down in June by anti-aircraft guns. After this period, the bombers flew too high for anti-aircraft fire to be effective. Fighter Command claimed 21 German bombers at night over Britain in June. Seven German aircraft crashed and were credited to fighters. Fighter Command defences at night were weak. The British lacked a specialised night fighter or widespread use of reliable Airborne interception radar. Coastal radar looked out to sea, once a raider had penetrated into the interior, they became difficult to track. Until the following year, night fighter defences remained ineffective at finding enemy aircraft and shooting them down. At the beginning of The Blitz in October, the Luftwaffe flew 5,900 sorties and lost 23—a 0.4 percent loss rate. The failures would cost Air Officer Commanding (AOC) Hugh Dowding, his command in November 1940.

Operations against British sea communications did not appeal to Reichsmarschall Hermann Göring. In Göring's view, the Luftwaffe was not prepared for naval warfare and this strategy was tantamount to Blockade. Blockade, which was put in effect against Britain from 18 July, required the cooperation of the Luftwaffe with the Kriegsmarine (German navy). Göring ensured air assistance was not forthcoming. Göring loathed the navy and its Commander-in-Chief Großadmiral Erich Raeder. In Göring's eyes, both Raeder and the navy represented the bourgeois clique of German society the National Socialist revolution had pledged to eliminate. Cooperation would not be easy and the Reichsmarschall consistently refused to accept the navy's calls for assistance in the war against the Royal Navy and British commerce throughout the conflict. All of the directives issued to the Luftwaffe at this time, by the Oberkommando der Luftwaffe (OKL—High Command of the Air Force) or Oberkommando der Wehrmacht (OKW—Supreme High Command of the Armed Forces), expressly stated that sea attacks on warships and shipping must take second place to "military objectives." The OKW did not alter this view until February 1941.

Göring and the OKL intended to strike at the RAF and establish air superiority or air supremacy. This aspect of future operations was clear in Göring's 30 June directive. The directive stated, "As long as the enemy air force is not destroyed, it is the basic principle of the conduct of air war to attack the enemy air units at every possible favourable opportunity—by day and night, in the air, and on the ground-without regard for other missions." Göring hoped that a victory in the air battle would preclude an invasion of Britain by persuading the Churchill Government to either submit to, or reach a peace settlement with, Germany. This was most evident during a conference in Berlin on 31 July when Hitler outlined Operation Sea Lion and its objectives. No Luftwaffe representative was present and Göring ignored summonses by Hitler to conferences aimed and inter-service cooperation. While the army and navy made tentative steps toward planning an amphibious assault, the OKL was engaged in an internal debate about which target sets should be attacked to attain control of the air as quickly as possible. Though Göring's directive mentioned cutting off British supplies he did not mention shipping specifically. On 11 July Chief of the General Staff Hans Jeschonnek ordered that coastal shipping should be attacked as a prelude to the main battle against the RAF and its infrastructure. The two Luftflotten commanders, Hugo Sperrle and Albert Kesselring, had already begun such operations as the indecision of the OKL had left them with little else to do.

The OKL decided to pursue coastal targets for several reasons. The first was that these targets and locations were easier to find than targets inland. The second, was the Royal Air Force (RAF) would suffer a higher degree of attrition in comparison to fighting over land in defending them, since they would be fighting over an area which could and would be strongly contested by the bulk of its enemy. Moreover, RAF pilots that abandoned their aircraft over water would face the same peril as their German counterparts. Unlike the Luftwaffe, the RAF lacked an air-sea rescue service at that time and consequently the Germans stood to gain more of an advantage under those circumstances. A third was the obvious advantage in eliminating the English Channel as a conduit through which British imports could supply Greater London via the Thames Estuary. Shipping could still travel north of Scotland, but it would slow down the supply of materials for the British war effort. Air Officer Commanding Fighter Command, Hugh Dowding preferred the navy to re-route its convoys that way to ease the burden on his forces.

Air Ministry and Admiralty

Relations between the Air Ministry, War Office and the Admiralty had been strained since the independence of the RAF on 1 April 1918. In the early 1920s, the three services competed for resources, influence and the right of the RAF to exist as a separate service. The War Office and the Navy tried to abolish the RAF and regain control of army and naval aviation. By 1940, service rivalry had diminished but the Air Ministry remained suspicious of the intentions of the other services.

Fighter Command cooperated with the navy during the Battle of Dunkirk when the RAF provided fighter cover for the embarkation of the British Expeditionary Force (BEF), which was costly for both services. By 1 June, the RAF reduced its effort to conserve its fighters and a Minesweeper, one transport and three Destroyers were sunk and two destroyers were damaged in their absence. The absence of air cover was not uncommon and the RAF believed itself to be more successful in battle, over-claiming German losses by 4:1. Of the 156 German aircraft lost in the west, about 35 were downed by fire from naval vessels leaving 102, aside from other causes, likely to have been shot down by the RAF against 106 British losses.

Cooperation was hindered by Fighter Command retaining rigid control of its units. The Admiralty complained that RAF methods did not permit direct contact by RAF operational staff liaising with the naval command. Time was lost and the fluidity of aerial warfare, meant that RAF aircraft came into action at the wrong time or place, often in numbers too small to defend the evacuation ships. Vice Admiral Max Horton the Commander-in-Chief Dover, responsible for organising the evacuation (Operation Dynamo), asked to meet Dowding in late June, to prevent the operational difficulties occurring again. Horton was told to put his complaints on paper and send them to Dowding, with a copy to the Air Ministry and they never met. It was felt by the Admiralty that the RAF was fighting a separate war, with little consideration given to joint operations.

The protection of shipping was a source of controversy in the RAF, since it required a substantial commitment of fighters. On average the 12 convoys passing through the Channel waters needed cover every day and roughly one-third were attacked. It became an immediate burden to No. 11 Group RAF under the command of Keith Park which was responsible for defending south-west England. The employment of convoys from the Suffolk coast to Lyme Bay negated the value of using the sea as a protective shield because the location gave tactical advantages to the attacker. Coastal radar could give little advance warning of incoming raids since the proximity of Luftwaffe airbases, meant that German aircraft could attack and quickly withdraw, making interception difficult. Standing patrols over convoys could compensate but this exhausted pilots and handed the tactical initiative to the Germans.

Coast and convoy defence had a place in Air Staff fighter defence policy but Dowding had to decide how best to employ Fighter Command to meet the German threat which he did so, apparently without consulting the navy. Before the war, Fighter Command had expected attacks by unescorted German bombers upon the eastern part of the country. The German occupation of France put the west of England in range of German aircraft. Dowding considered that airfields and factories would be attacked as well as convoys and ports, to draw RAF fighter forces into battle and inflict losses. On 3 July, Dowding asked for convoys to be sent around Scotland, to reduce the burden of convoy escort along the south coast, to preserve Fighter Command for the main battle. Four weeks later the Air Ministry (ostensibly after complaints from the Admiralty) instructed him to meet the Luftwaffe with large formations over shipping on the south coast route. On 9 August Winston Churchill was still asking the navy to use the convoys as bait to lure German bombers; the tactic succeeded but fighting over the sea caused Fighter Command greater losses.

Signals intelligence

The amount of Luftwaffe Enigma messages declined after the Battle of France, when the higher commands returned to the use of land lines but at the end of June, decrypts revealed that the Luftwaffe was preparing for operations against Britain from Belgium and Holland and that most bomber Geschwader would be ready by 8 July; photographic reconnaissance (PR) showed runways being extended. Since PR had found no invasion shipping in Channel ports, it was considered likely that preliminary operations were contemplated and after about a month of small night raids, the Luftwaffe began bigger daylight attacks on ports, coastal convoys and aircraft factories on 10 July. Decrypts in late June enabled the Air Ministry Air Intelligence branch (AI) to predict the beginning of the German offensive and decrypts for several months previous had been uncovering the Luftwaffe organisation, order of battle and equipment. The accumulation of information allowed AI and the codebreakers at Bletchley Park to glean strategic intelligence from tactical signals being sent in lower-grade codes by Luftwaffe flying units. The British estimate of the number of German bombers was reduced from 2,500–1,250 by 6 July (the true number was 1,500–1,700).

Changes in Luftwaffe methods and objectives were communicated via land-line but at times could be inferred from Enigma decrypts that changes were afoot. The code-name Adlertag and references to the period from 9–13 August, were uncovered but not its purpose. As the Kanalkampf continued, Enigma gave more notice of targets, timing and the size raids but this was sometimes too late to be useful and Luftwaffe changes at short-notice could negate the information. Tactical information from Enigma was not well co-ordinated with RAF Y-stations (RAF Y), which reported separate to Enigma but RAF Y was able to give warnings of German sightings of coastal convoys and imminent attacks, by eavesdropping on and decrypting Luftwaffe wireless transmissions between aircraft and the ground. RAF Y identified airborne bomber units and their bases, occasionally also uncovering the target area, although it was mid-August before this added much to RDF reports.

German voice transmissions by radio telephone (R/T) were collected by stations around Britain based on RAF Kingsdown in Kent by German speaking WAAF and WRNS and sent to local RAF headquarters and Fighter Command HQ, the centre of the Dowding system where they were collated with reports from RDF and the Observer Corps. Voice transmissions could occasionally alert Fighter Command to formations assembling beyond RDF range, give the height of formations, discriminate between fighters and bombers and hear orders being passed to fighter escorts showing main and secondary attacks, Luftwaffe judgements about RAF intentions, meeting points and courses for return journeys.

Coastal and Bomber command operations

Coastal Command Spitfires and Lockheed Hudsons of the Photographic Reconnaissance Unit flew from Norway to the Spanish border to photograph German-occupied ports, looking for signs of invasion preparations. Nothing was revealed until the second week of August, when accumulations of barges were found and interpreted as an invasion preparation. In the meantime, Bomber Command sent its bombers nightly against the German ports, aircraft industry and airfields when unable to bomb the primary target. The Blenheims of 2 Group made daylight attacks on airfields occupied by the Luftwaffe. In July ports and shipping were made the priority target but until the ports filled with invasion craft in August, Bomber Command continued to attack industry and Luftwaffe ground facilities. The Germans had 400 airfields available and dispersed aircraft around them, making bombing ineffectual. These targets were defended by large concentrations of anti-aircraft artillery, making ground strafing too risky. The Blenheims were vulnerable to fighter attack and the crews had orders to abandon raids unless there was 7/10ths cloud and by the end of June, 90 percent of sorties were cancelled. The Blenheims—with some Fairey Battles returned from France—began to fly on moonlit nights. In July 1940, Bomber Command lost 72 aircraft carrying out these operations.

1–3 July

Luftwaffe attacks on shipping were made much easier by the capture of bases in France and the Low Countries, while in the North Sea, the Grimsby fishing fleet was attacked twice in June. Air attacks increased and in July, ship losses off the east coast exceeded those by naval mines. Attacks on minesweepers, escort vessels and anti-invasion patrols rapidly increased and was made worse by a lack of light anti-aircraft guns and the concentration of the air defence effort in the south-east of England, against a possible invasion. The Admiralty reserved the right for ships to fire on aircraft on an apparently attacking course, because it had been found that a high volume of prompt, accurate fire could reduce the accuracy of bombing and sometimes shoot down the attacker. Hurried training and lack of experience in aircraft recognition among navy crews led to many RAF aircraft being taken for hostile and fired on, even escorts for the ships. While demanding close escort, the Admiralty required ships to engage unidentified aircraft within 1,500 yd (1,400 m), a practice the RAF considered irresponsible. More training in aircraft recognition and pilots not flying towards to ships on tracks similar to bomb runs were obvious remedies and with experience, navy gunners made fewer mistakes.

In July, convoys of 20–30 coasters began to sail along the south coast between the Thames and the Bristol Channel. The convoys were slow and in easy range of enemy aircraft flying from France but the south coast ports needed 40,000 long tons (41,000 t) of coal a week and land transport capacity was insufficient. On 25 July, Convoy CW 8 of 21 ships had a standing fighter patrol overhead but so many Luftwaffe fighters were airborne that British ground controllers were unable to tell which raids contained strike aircraft, as opposed to fighter aircraft, and the standing patrol was never numerous enough to prevent four dive-bomber attacks, which sank five ships and damaged two destroyer escorts and four coasters. On 26 July, E-boats sank three ships and only eleven passed Dungeness. The German attacks on the convoy showed that far more fighters would be needed to protect convoys in the Straits of Dover.

The German occupation of the Channel Islands began on 30 June 1940 and on Monday 1 July, early morning mist curtailed operations by Luftflotte 2 and Luftflotte 3 but reconnaissance sorties by the Aufklärungsgruppen took place and two Dornier Do 215s were shot down by British ground defences. A Junkers Ju 88 from 3.(F)/Aufklärungsgruppe 121 was also lost to mechanical failure. Several Bristol Blenheims, escorted by Hawker Hurricanes of 145 Squadron reconnoitred Abbeville for no loss. Supermarine Spitfires of 72 Squadron shot down a Heinkel He 59 seaplane and the crew was rescued by a British cruiser, complaining that they were a Red Cross service and should not have been fired upon. The British issued a warning that aircraft operating in the vicinity of convoys did so at their own risk. A scramble was ordered soon afterwards to protect Convoy Juno as it approached Portsmouth; the convoy was attacked by Ju 87s which left before the fighters arrived.

Blenheim If fighters from 235 Squadron claimed a Dornier Do 17 damaged and Spitfires from 64 Squadron engaged and shot down a Do 17 from Kampfgeschwader 77 (KG: Bomber Wing) that was approaching RAF Kenley. On 2 July, German attacks caught convoy OA177G en route for Gibraltar and Sturzkampfgeschwader 2 (StG: Dive Bomber Wing) sank the British steamer Aeneas (10,058 GRT) south-east of Start Point, Devon; 18 crewmen died and the rest were rescued by the destroyer HMS Witherington and later StG2 damaged the British steamer Baron Ruthven (3,178 GRT). A German E-Boat, S-23, looking for the convoys, was damaged by a mine and sank as it was being towed. Bijou (98 GRT) was sunk by air attack at Mistley Quay, near Harwich on 3 July. To be closer to the coast, Dowding transferred 79 Squadron from Biggin Hill to RAF Hawkinge.

4 July

In the morning of 4 July, the Luftwaffe attacked Portland harbour, with Messerschmitt Bf 110s from V.(Z)./Lehrgeschwader 1 (LG: Experimental Wing) and two Staffeln (squadrons) of Messerschmitt Bf 109s from I./Jagdgeschwader 1 (JG: Fighter Wing) (renamed III./Jagdgeschwader 27 -JG 27- the next day) were ordered to escort Junkers Ju 87 Stukas of II./Sturzkampfgeschwader 51 (StG 51, renamed II./Sturzkampfgeschwader 1 StG 1, the next day). At 08:15 the Stukas arrived and with no RAF fighters in sight, attacked HMS Foylebank (ex-MV Andrew Weir) armed with four twin four-inch high-angle guns, multiple two-pounder Pom-Pom guns and 0.5-inch machine guns. The ship had been sent to Portland on 9 June to protect the harbour but only succeeded in attracting the bulk of the 26 Stukas.

Foylebank could not take evasive action, the gunners did not have the time to man their weapons properly and 104 bombs were dropped, many hitting the vessel. Foylebank's tender was hit and sank immediately, 176 sailors being killed. Only one four-inch gun got into action, firing 55 rounds against the Stukas as they dived steeply at up to 90°. At around 1,500 feet (460 m), the dive-angle was decreased to 45° and the pilot lined up the gun-sight on the ship's stern. The pilot fired the MG 17 machine guns and as the altitude decreased, the gunfire raked the ship. When the rounds struck the water ahead of the bow, the bombs were released and as the Stuka pulled out, the rear-gunner opened fire. The Stukas sank Silverdial and the merchantman East Wales (4,358 GRT), William Wilberforce (5,004 GRT) and City of Melbourne (6,630 GRT) were damaged. Only one RAF aircraft, a Fairey Battle of No. 10 Bombing and Gunnery School, on a training flight from RAF Warmwell was present and the pilot A. W. Kearsey fled the scene at full speed, apparently unnoticed by the German fighters. The raiders lost a Ju 87 shot down by Foylebank gunners, Leutnant Schwarze and his gunner being posted missing and another Stuka was lightly damaged, both from StG 51 and a Bf 109 was damaged.

Convoy OA 178 (convoy outbound atlantic) of 14 heavily-laden merchantmen left the Thames Estuary, bound for the west coast and passed Dover safely on 3 July. German radar picked up the convoy and the Luftwaffe was ordered to intercept the ships after the Portland operation. As smoke was rising over Portland, a Junkers Ju 88 reconnaissance aircraft from 1.(F)/123 flew over the Channel and reported that the convoy was south-west of Portland. I./StG 2 took off, led by Geschwaderkommodore (Wing Commander) Oskar Dinort, from Falaise with 24 Ju 87s, escorted by a Staffel of fighters from I./JG 1. The attack was followed by 23 Ju 87s of III./StG 51 after they had been hastily re-fuelled and bombed up. The ships were close to the French coast and Dallas City was damaged, engulfed in flames and collided with Flimson which was also hit and the ships took 15 minutes to disengage; Dallas City later sank. Antonio limped into Portland Harbour with Flimson, where the Foylebank was still on fire and sinking. Deucalion (1,796 GRT), Kolga (3,526 GRT) and Britsum (5,225 GRT) were sunk and SS Canadian Constructor, was damaged for no Luftwaffe loss.

In the late evening, Hurricanes of 79 Squadron scrambled to defend shipping off Dover being attacked by Dornier Do 17s of Kampfgeschwader 2 (KG 2). Several ships were badly damaged and one freighter was beached to avoid sinking and Bf 109s from II./Jagdgeschwader 51 (JG 51) shot down a Hurricane. Sergeant Henry Cartwright, a flying ace with five victories, was killed, for one Do 17 damaged. The day had been a victory for the Luftwaffe, the attack on Portland inflicting the worst ever loss of life on British military personnel based in Britain. Churchill was perturbed and submitted a memo to the Admiralty entitled "Action This Day",

Could you let me know on one sheet of paper what arrangements you are making about the Channel Convoys now that the Germans are all along the Channel coast? The attacks yesterday both from the air and by E-boats, were very serious, and I should like to be assured this morning that the situation is in hand and the Air is contributing effectively.

Horton regarded the episode as a disgrace and the Admiralty complained to the Prime Minister, who demanded that Fighter Command do more to protect Channel shipping.

5–8 July

The weather over the Channel was poor over the Channel on 5 July. No. 65 Squadron RAF intercepted an 8. Staffel Heinkel He 111 of Kampfgeschwader 1 (KG 1) over the sea and shot it down with the loss of all five crew. Late in the evening, 64 Squadron flew a reconnaissance patrol over Calais. Bf 109s from JG 51 intercepted and shot down a Spitfire, its pilot being killed and another was damaged for no loss to the German fighters. Evidence grew that the main Luftwaffe attack would fall in the south and as Fighter Command squadrons were rebuilt with pilots from Operational Training Units (OTU), the Air Marshal agreed with Air Officer Commanding (AOC), No. 11 Group, Keith Park and AOC 12 Group, Trafford Leigh-Mallory, to a transfer of some squadrons to bases closer to the coast on 6 July. The Air Staff expected German attacks from the Cherbourg peninsula and 609 Squadron was moved from RAF Northolt to RAF Middle Wallop on Salisbury Plain; 87 Squadron moved to Exeter to cover Bristol, Plymouth and the Western Approaches.

Convoy patrols were resumed on 7 July in defence of CW and CE (west- and east-bound) convoys. 145 Squadron shot down a Do 17P reconnaissance aircraft over the Channel, 43 Squadron shot down another shadowing an east-bound convoy and another Do 17 fell to 601 Squadron later on. Luftwaffe Jagdgeschwader (Fighter Wings) were encouraged to embark upon freie jagd (free hunts) to engage RAF fighters wherever possible. The tactic offered exceptional opportunities for the German fighters, which did not have to worry about protecting bombers. As 54 Squadron prepared to attack a lone He 111, it was "bounced" by Bf 109s and two pilots force-landed and another fighter was damaged, the pilots surviving.

At 19:30 Greenwich Mean Time as the convoy passed Dover, 45 Do 17s from I. and II./KG 2 took off from Arras and attacked at 20:15, sinking one ship and damaging three more. The radar stations at Pevensey, Rye and Dover gave good warning of the attack and seven Spitfires from 64 Squadron were ordered up from RAF Kenley, with six more from 65 Squadron at RAF Hornchurch. The fighters took off too late, could not prevent the attack and 65 Squadron was bounced by 70 Bf 109s from JG 27. Three Spitfires were shot down, all three pilots being killed and two Bf 109s were claimed destroyed (although neither can be identified through Luftwaffe loss records). The fighters of 64 Squadron damaged a Do 17 which crash-landed at Boulogne and another suffered light damage. Before dark, He 111s bombed Portland Harbour near missing the steamer British Inventor, killing one man and hitting HMS Mercury, whose crew lost four dead and three wounded. Dowding was now in no doubt that the Luftwaffe was concentrating on ships and harbours and that the seven coastal convoys and deep-sea convoys at sea would be attacked. Dowding regarded convoy escort as wasteful and feared that Fighter Command would be depleted before main battle. The Germans had lost seven reconnaissance aircraft in a week and the Jagdgeschwader were ordered to provide escorts.

On 8 July, the weather was favourable for the Luftwaffe, with thick cloud extending from 1,500–20,000 feet (460–6,100 m) shielding the bombers from RAF fighters. A convoy sailing up the Bristol Channel was shadowed by a Do 17, which was intercepted by 92 Squadron and claimed destroyed, though this is not shown in German records. In the early hours a large CW convoy put to sea from the Thames Estuary to pass Dover at 12:00. At 11:30, a He 111 found near the convoy off the North Foreland was claimed shot down by Spitfires of 74 Squadron and appears to have escaped, though seen on fire, undercarriage down, diving into cloud. An hour later, radar picked up considerable aerial activity over the Pas de Calais. 610 Squadron intercepted an unescorted Staffel of Do 17s off Dover, which dropped their bombs wide of the ships.

The Spitfires damaged a bomber but lost a pilot killed to return fire; six more Spitfires sighted Do 17s escorted by a Staffel of Bf 109s and a Bf 109 was claimed without loss. (A II./JG 51 Bf 109 force-landed, the pilot wounded.) Hurricanes of 79 Squadron took off from Hawkinge and north of Dover, were attacked and lost two pilots killed to Bf 109s. Kampfgeschwader 54 (KG 54) Ju 88s made ineffectual attacks and Geoffrey Allard of 85 Squadron shot down a KG 1 He 111 (the pilot was killed and the four crew members were posted missing) and 74 Squadron shot down a Bf 109 from 4./JG 51 (Leutnant Johann Böhm being taken prisoner) and Squadron Leader D. Cooke of 65 Squadron was killed in the afternoon.

9 July

On 9 July Kesselring committed the Zerstörergeschwader (Destroyer Wings) to battle en masse, for the first time against the RAF. The first engagement took place when 257 Squadron damaged a Kampfgeschwader 3 (KG 3) Do 17, which crash-landed near Antwerp, Belgium with one crew member dead. A cold front generated thick cloud and caused the Luftwaffe to curtail operations. Park ordered section strength (3–4 aircraft) standing patrols over six small coastal convoys and moved 609 Squadron to RAF Warmwell, to cover Portland. A number of single-aircraft raids penetrated the defences and Do 17s bombed docks at Cardiff, damaging the steamers San Felipe (5,919 GRT) and Foxglove. A local airfield was bombed and two pilots were killed on the ground.

At 12:45, Dover radar detected the build-up of a large formation behind the Pas de Calais and to prevent the Luftwaffe from using the cloud cover to approach unseen and attack the convoys from the trailing edge of the cloud base, Park ordered six squadrons from 11 Group into action. At 13:00 he six Hurricanes were ordered up from RAF North Weald, where the station commander, Wing Commander Victor Beamish, became so impatient that he ordered his aircraft to be readied and took off in support, leading 151 Squadron. The Hurricanes were confronted with a formation of 100 bombers and fighters in a stepped up formation, ranging from 12,000–20,000 feet (3,700–6,100 m). The six Hurricanes formed two sections of three, one against the bombers and the others after the 60 Bf 109s and Bf 110s fighters. The German bomber crews exaggerated the number of Hurricanes and split into six formations, one finding itself over the convoy but its bombing was scattered and no ships were hit; a Hurricane was shot down and another damaged; Squadron Leader C. G. Lott was wounded and withdrawn from active service, the Hurricanes probably being shot down by II./JG 51. In return III./Zerstörergeschwader 26 (ZG 26 or Destroyer Wing 26) lost three Bf 110s destroyed and one damaged. Seven crew were posted missing, with one pilot safe, after being intercepted by 43 Squadron. No Bf 109 appears to have been lost and they prevented the RAF fighters from reaching the bombers.

Another Luftwaffe raid was mounted and Park who had moved three squadrons to RAF Manston, was positioned to intercept. The German raid reached the North Foreland around 15:50, 65 Squadron engaged the formation and shot down one Bf 109 from II./JG 51, the pilot posted missing. 17 Squadron Hurricanes reached the area and shot down a Kampfgeschwader 53 (KG 53) He 111, with the crew killed. Kesselring ordered Seenotflugkommando 1 with Heinkel He 59 float planes to rescue survivors, covered by a Staffel of Bf 109s. A He 59 found itself above a convoy and was attacked by 54 Squadron Spitfires, led by Al Deere. The He 59 was forced down on the Goodwin Sands and its crew was captured. Two Spitfire pilots were killed by the escorts from II./JG 51 for another Bf 109 and its pilot missing. The bombers hit the steamer Kenneth Hawksfield (1,546 GRT) and Pol Grange (804 GRT) with no casualties and Kenneth Hawksfield was beached, patched up two days later and returned to London docks.

The last sorties of the day were flown by 27 I./Sturzkampfgeschwader 77 (StG 77) Ju 87s, led by Hauptmann Friedrich-Karl Lichtenfels, escorted by Bf 110s, which attacked the Portland naval base. Intercepted by 609 Squadron, Lichtenfels was killed with his gunner and a Spitfire pilot was killed by the Bf 110 escort; Lichtenfels was a Knight's Cross of the Iron Cross holder and experienced pilot. A Bf 110 escort from 13./LG 1 was also lost. The 7,085 GRT freighter Empire Daffodil was damaged. Further east, up the North Sea coast, a raid over Norwich by Kampfgeschwader 26 (KG 26) He 111s killed 26 civilians and 17 Squadron destroyed one of the bombers; all of the crew were killed.

10 July

Göring's 30 June order had delegated responsibility of attacking shipping to Bruno Loerzer's Fliegerkorps II (Air Corps II) and Wolfram Freiherr von Richthofen's Fliegerkorps VIII (Air Corps VIII) since they contained most of the Ju 87 Stuka units and Loerzer appointed Geschwaderkommodore Johannes Fink, the commander of KG2 as Kanalkampfführer (Channel Battle Leader). JG 51 (Theo Osterkamp) was based at Wissant, close to KG 2 and until other Jagdgeschwader could be brought to action JG 51 was the Jagdwaffe spearhead over England and had been carrying out fighter sweeps over Kent but bomber escort deprived the fighters of freedom of action. Fink devised a compromise in which the Messerschmitt Bf 110 Zerstörergeschwader (Destroyer Wings) flew close escort and the Bf 109s roamed, to engage British fighters at a tactical advantage. A Do 17 of 4.(F)/121 was sent out to reconnoitre the Channel in thick cloud and rain, accompanied by a Staffel of Bf 109s from I./JG 51 and 74 Squadron scrambled six Spitfires to intercept, which damaged the Do 17 for two Spitfires damaged by the Bf 109s.

Eight convoys were at sea and the German formation had time to report the composition and heading of a large convoy (Convoy Bread) before being intercepted. The convoy was sailing in ballast from the Thames Estuary and rounded the North Foreland at 10:00. Fink alerted KG 2, with III./ZG 26 as close escort and JG 51 as high cover. While the operation was being prepared, a Staffel of Bf 109s on a sweep over Dover shot down a 610 Squadron Spitfire without loss. Park sent up a patrol over Convoy Bread from 32 Squadron at 13:15 GMT and at 13:30, when it was clear the Germans were mounting a stronger raid, dispatched 56 Squadron, 111 Squadron and 74 Squadron. Twenty minutes later the formations met over the convoy, about 26 Do 17s from I./KG 2, all three Staffeln of I./ZG 26 Bf 110s and two Staffeln of I./Jagdgeschwader 3 (JG 3, which had just arrived in France). Mistaking the Bf 110s for Do 17s, the leader of 32 Squadron reported 60 bombers and called for reinforcements; Park had already ordered three more squadrons into action.

A dog-fight between around 100 aircraft broke out; it was difficult for the RAF fighters to co-ordinate attacks, since the radio was full of chatter between pilots and the Bf 109s frustrated British attacks on the bombers. No 111 Squadron made head-on attacks into the Do 17s and a Hurricane collided with a bomber, the body of Pilot Officer Higgs later being washed ashore in the Netherlands. The Do 17, flown Staffelkapitän (Squadron Leader) Hauptmann Krieger, also crashed with the loss of two crew. (Higgs may have been hit by Walter Oesau of III./JG 51 and lost control before the collision.) The interception managed to disrupt the bombing and only a 700 GRT sloop was sunk by the 150 bombs dropped. Six 64 Squadron Spitfires arrived and harassed the Germans all the way back to the French coast. A Bf 110 was shot down by 64 Squadron and another by 56 Squadron, a Do 17 was shot down by 111 and 66 squadron aircraft and two more were shot down by 32 Squadron. A Bf 109 of 2./JG 3 and one from II./JG 51 were shot down and two were damaged, one pilot being rescued by a He 59 and a Hurricane from 111 Squadron was damaged.

In other attacks, Luftwaffe bombers sank the British tanker Tascalusa (6,499 GRT) in Falmouth Harbour. The Greek steamer Mari Chandris (5,840 GRT) from convoy HG 33, which had been towed to Falmouth in June after a collision, was set on fire by Tascalusa, the crew of the Greek steamer being rescued. (Tascalusa was refloated on 29 August and beached at Mylor Flats for scrapping.) The British steamer Waterloo (1,905 GRT) was sunk by Ju 88s and the crew rescued. The Dutch steamer Bill S (466 GRT), from convoy CW 3 was badly damaged and sank 6.7 miles (10.8 kilometres) off Dungeness, all the crew surviving. The British tanker Chancellor (7,085 GRT), from convoy OA 170, was damaged by an aircraft off Falmouth and the Dutch salvage tug Zwarte Zee was sunk by bomb splinters from near-misses.

11 July

Von Richthofen ordered Fliegerkorps VIII to prepared for operations at first light and taking off at 07:00 from the Cherbourg Peninsula, Ju 87s from StG 2 (Geschwaderkommodore Dinort) attacked shipping along the coast. The Stukas intercepted the British steam yacht HMS Warrior (1,124 GRT) and the 36-year-old ship was sunk with one casualty. No. 501 Squadron had scrambled but was engaged by the Bf 109 escort and lost one pilot shot down and drowned; 609 Squadron arrived as the Ju 87s began their dives. The six Spitfires split, one section of three engaging the Stukas and the other taking on the escort. Overwhelmed by odds of 6:1, the squadron was routed, with the loss of two pilots killed for no loss to the Germans; none of the merchant vessels were hit.

A relay of German reconnaissance aircraft observed British waters during the morning, Luftwaffe aircraft flying as far north as Scotland. Over Yarmouth, a Hurricane was damaged by return fire from a Do 17 and then the Dornier was shot down by Douglas Bader of 242 Squadron based at Coltishall. Squadron Leader Peter Townsend, 85 Squadron, baled out near Harwich after being hit by a Do 17 belonging to II./KG 2, which returned with three wounded crew. Encouraged by the relative immunity of the Stukas in the morning attack, Hugo Sperrle ordered Luftflotte 3 to follow up the attack; Bf 110s from ZG 76 would provide escort in place of the Bf 109s. At 11:00 GMT, Hurricanes from 601 Squadron were scrambled to intercept a reconnaissance Do 17, missed it and stumbled into a formation of Ju 87s from III./StG 2 escorted by about 40 Bf 110s, that radar had failed to locate. The escorts were too high above the Ju 87s to stop the first attack. Most squadrons in the Middle Wallop sector were re-fuelling but six 238 Squadron Hurricanes were scrambled, with three more from 501 and 87 Squadrons and nine from 213 Squadron near Exeter. None arrived in time to stop the attack on Portland at 11:53 GMT but little damage was done and only one vessel was damaged.

A dog-fight occurred near the Dorset coast, when 87 Squadron attacked the escort out of the sun and the squadron leader, John Dewar, hit the Bf 110 of Staffelkäpitain Oberleutnant Gerhard Kadow; the aircraft crash-landed and Kadow tried to destroy his aircraft but was shot by approaching soldiers. Oberleutnant Hans-Joachim Göring, nephew of Hermann Göring and his gunner Unteroffizier Albert Zimmermann crashed into a cliff top at the Verne Citadel on the Isle of Portland, both being killed. Leutnant Friedrich-Wolfganag Graf von und zu Castell tried to help Göring but was killed, four Bf 110s from 9. Staffel being lost with their crews. A Ju 87 was destroyed and another force-landed, the light Stuka losses were a result of the Bf 110s bearing the brunt of the attacks. One Hurricane was slightly damaged and its pilot unhurt. Hans-Joachim Göring was the first German fighter pilot to die on British soil. The British steamer Kylemount (704 GRT) was damaged off Dartmouth and the steamers Peru (6,961 GRT) and City of Melbourne (6,630 GRT) were damaged in Portland harbour. Eleanor Brooke (1,037 GRT) was damaged off Portland and the Dutch steamer Mies (309 GRT) was damaged south of Portland Bill.

In the evening a He 59 off the Cornish coast was forced down by engine failure and another landed to rescue the crew. Coastguards sighted the Germans and two destroyers were sent from Plymouth to capture the aircraft. Bristol Blenheims from 236 Squadron shot down a Ju 88 and damaged a He 111 from Kampfgeschwader 55 (KG 55) that attempted to interfere. A He 59 was lost and the other evacuated the crew. During the night, raids on Rochester and Chatham killed 36 people. KG 54 was also involved in the convoy operation.

12 July

On 12 July, dawn was showery with grey, overcast skies when Booty, a large convoy set out from the Thames Estuary steaming south-west off the Essex coast and Agent another convoy was off the North Foreland. The Luftwaffe and Regia Aeronautica (Italian Air Force) attacked Booty and 17 Squadron took off from RAF Debden to patrol the convoy. While en route, the pilots were warned of a raid and 85 Squadron from Martlesham, 242 Squadron, led by Bader, from Coltishall, six Boulton Paul Defiants from 264 Squadron based at RAF Duxford and eleven Hurricanes of 151 Squadron from North Weald, were rushed to the area as reinforcements. Two Do 17 Staffeln of II./KG 2 and III./Kampfgeschwader 53 (KG 53), were intercepted by 17 Squadron and attacked at 08:48, as the Germans began to bomb. One He 111 and a Do 17 were shot down, a Staffelkapitän Hauptmann Machetzki being killed with his crew. The bombers flew in a tight formation and their cross-fire damaged several Hurricanes and shot down two, killing a pilot from 85 Squadron. Two He 111s and two Do 17s were shot down. Trawlers from Booty rescued German aircrew despite the falling bombs. A further He 111 from Stab/KG 55 was shot down by Spitfires on armed reconnaissance, a crew man being killed.

The steamer Hornchurch (2,162 GRT), from convoy FS 19 was sunk and the crew rescued by patrol sloop Widgeon. The steamer Josewyn (1,926 GRT) was damaged 8 nautical miles (15 km; 9.2 mi) west-north-west of St. Catherine's Point. Having missed the chance to attack Agent, Luftflotte 3 sent out more reconnaissance He 111s and Do 17s to track shipping. A He 111 from KG 55 was lost during the afternoon against 43 Squadron Hurricanes and the Luftwaffe failed to find and attack any more convoys. Later that night Geschwaderkommodore Alois Stoeckl led KG 55 on a night attack against Cardiff without loss.

13–18 July

On 13 July other, smaller convoys ran the gauntlet through the Channel. A II./Kampfgeschwader 51 (KG 51) Ju 88 was shot down by 43 Squadron Spitfire while shadowing a convoy. The convoy was heading west and was in the area of Lyme Bay when 238 and 609 squadrons, with 12 Hurricanes and three Spitfires were ordered to mount an aerial guard. Convoy CW 5 was late and instead they found no ships but fifty Luftwaffe aircraft searching for the convoy. Two Do 17s were shot down for one pilot killed in a force-landing. V./LG 1 Bf 110 fighter-bombers attempted to engage but became embroiled in a dogfight with RAF fighters who claimed three damaged for no loss. One damaged claim was filed by John Dundas.

As Bread sailed out of range, the smaller convoy was attacked by StG 1 escorted by three Staffeln of JG 51. 11 Hurricanes of 56 Squadron engaged the Ju 87s before the Bf 109s could react, two Ju 87s were damaged but the escorts shot down two Hurricanes. 54 Squadron Spitfires attacked the Bf 109s and New Zealander Colin Falkland Gray shot down Leutnant Hans-Joachim Lange, who was killed. Luftwaffe losses amounted to six aircraft destroyed and eight damaged, four Hurricanes were shot down and a Spitfire was shot down in error by the Dover defences. HMS Vanessa was disabled by near-misses and was taken under tow by tug Lady Duncannonand and repaired in November 1940.

Bad weather over the next few days reduced operations and on 14 July, Kesselring sent the IV.(St)/LG 1 Ju 87s against convoys, when the escorts from III./JG 3 and II./JG 51 shot down a Hurricane from 615 Squadron but only one Ju 87 and one Bf 109 were destroyed and another force-landed. The air battle took place over a convoy which was recorded by Charles Gardiner, a BBC reporter. No damage was done to the convoy but an armed merchant cruiser Esperance Bay, carrying £10,000,000 in Gold bullion was badly damaged off Land's End, Lieutenant commander H. Close and six ratings being killed. The Turkish Navy minelaying sloop Yuzbasi Hakki was damaged off Weymouth. Convoys CW 5 and CW 6 were also attacked and the British Mons (614 GRT) and the 1,129 GRT Norwegian steamer Balder were damaged and Island Queen (779 GRT) was sunk. The Belgian trawler Providentia (139 GRT) blew up with the loss of all hands, probably bombed by IV.(StG)/LG 1.

On 15 July, a Hurricane was shot down and the Luftwaffe lost a He 111, a Ju 88 and a Dornier Do 18 seaplane to RAF fighters. The steamer Heworth (2855 GRT) in convoy FN 223 was damaged and taken in tow for Harwich but ran aground. Four crew were killed and the survivors were rescued by the destroyer HMS Valorous. Steamer City of Limerick (1359 GRT) was sunk and the destroyers HMS Mackay and HMS Broke went to rescue the crew. Two men were killed and the survivors were rescued by Belgian trawler Roger Jeannine. The Polish steamer Zbaraz (2,088 GRT) in convoy FN 223, was badly damaged by German bombs 10 nautical miles (19 km; 12 mi) south of the Aldeburgh Light Vessel, taken in tow by the tug ST Olaves but sank, with no casualties and the survivors rescued by trawler Vidonia and tug Muria. The Portuguese steamer Alpha (853 GRT) was sunk and the crew picked up by destroyers HMS Bedouin, HMS Tartar and HMS Mashona.

On 16 July the RAF had no losses and shot down a KG 54 Ju 88, a Do 17 intruder from 5.(Nacht)/Jagdgeschwader 1 (JG 1) was shot down by RAF bombers. Next day, a He 111 and Ju 88 from III./KG 26 and I./KG 51 were shot down and one 64 Squadron Spitfire was lost with the pilot wounded. The Kanalkampf was having a serious effect on Fighter Command. The number of losses on paper was not high but the attrition of continuous patrols, 80 percent over the sea and poor weather, tired pilots and slowed the training of replacements. The dispersal by the Luftwaffe of its raids kept British pilots in action rather than resting and Fighter Command lost a disproportionate number of experienced squadron leaders and flight commanders from the 13 of the Fighter Command squadrons engaged. The growing number of Hurricanes in RAF Maintenance Command, meant that each squadron was allotted 18 fighters, allowing two flights of six to operate and keep six in reserve for training and maintenance.

On 18 July, two 609 Spitfires were shot down by Ju 88s from I. and II./KG 54 which lost one Ju 88 destroyed and one damaged in return. A 603 Spitfire was damaged by a He 111 while KG 27 lost Geschwaderkommodore Oberst Bernhard Georgi and his crew killed in action by 145 Squadron Hurricanes for one Hurricane damaged. A 152 Squadron Spitfire was damaged and one 610 Squadron Spitfire was shot down by Bf 109s. One LG 1 Ju 88 fell to anti-aircraft fire while a StG 77 Do 17 reconnaissance aircraft was destroyed by 152 Squadron over a convoy.

19 July

On 19 July nine convoys were at sea as German aircraft scouted the shipping lanes in the early morning. A Do 17 from 4.(F)/121 was shot down by 145 Squadron at 07:04. No 264 Squadron flying Boulton Paul Defiants, had operated with success over Dunkirk eight weeks earlier and its sister unit, 141 Squadron with twelve aircraft, was moved from West Malling to Hawkinge. The unit was inexperienced and while the aircraft were being fitted with Constant speed propellers in the early summer, the crews had little time to practice in the air; the gunners were uneasy about escaping their turrets in an emergency. Dowding and Park were dubious about the Defiant but ordered 141 Squadron to escort a convoy that morning.

Osterkamp used a break in the weather to lead III./JG 51 on a patrol over the Dover area and spotted a formation of RAF aircraft at 12:45. Identifying them as Defiants, they attacked from the rear and below, to avoid return fire from the turret. Four Defiants were shot down on the first pass and another as it sought cloud cover. The Bf 109s were interrupted by 111 Squadron which shot down a Bf 109 into the sea and the four surviving Defiants escaped, one crash-landed, one was written off and the other two were damaged. Osterkamp noted that the pilots' delight with their success was tempered with knowledge of their own mortality after this mission.

Post-battle analysis suggested that the RAF controller failed to get the squadron airborne before the German aircraft arrived, because a scramble had only been ordered when German fighters had been seen by observers at RAF Hawkinge. The Bf 109s loitering with the advantage of height led to disaster for 141 Squadron. The German pilots quickly learned to distinguish the Defiant from other fighters and did not consider it formidable. Dowding reported on the battle to Churchill, telling him that many men had died; Churchill acknowledged Dowding's misgivings with the Defiant and turned away. The surviving Defiants saw very little action for the remainder of the battle; 19 July was the worst defeat of Fighter Command during the battle, the RAF losing ten aircraft against four from the Luftwaffe. Encouraged by the Luftwaffe successes, Hitler made his last "appeal to reason" that day and millions of copies of the speech were circulated in Britain.

Off Portland harbour, 87 Squadron intercepted Ju 87s without result and 64 Squadron shot down a Heinkel He 115 float plane mining the Thames Estuary. III./KG 55 lost a bomber to 145 Squadron and against Bf 109s, 1 and 32 squadrons lost a Hurricane each, 43 Squadron lost two and one damaged, two pilots were seriously wounded and one was killed; 141 Squadron lost ten crew killed and one wounded. Although the losses on this day were small numerically, the British fighters had been defeated in each engagement. The Germans were more experienced, operating in greater numbers and the Bf 109 units were fighting with greater flexibility. Operating at generally higher altitudes, the Finger-four formation tactic used by German fighter pilots proved far more effective than close British formations of British pilots. All the German pilots could scan the air but the British had to rely on the formation leader, while concentrating on tight formation-flying.

At 12:15, StG 1 attacked the destroyer HMS Beagle off Dover and Beagle replied with its anti-aircraft guns and high-speed manoeuvres, to escape the deluge of bombs from 40–50 Ju 87s. Several near misses damaged Beagle's gyro and engines but there were no casualties and Beagle made it back to Dover. At 16:00, German formations appeared over Dover and nine Do 17's from KG 2 and Ju 87s from StG 1 bombed the harbour, attacking in shallow dives. Twenty-two bombs were dropped and the oiler War Sepoy blew up, the tug Simla, the drifter Golden Drift and the destroyer HMS Griffin were damaged.

20 July

Around midnight, a Focke Wulf Fw 200 Condor ventured too far inland and was shot down by ground defences near Hartlepool and another was lost over Northern Ireland. German records show the losses on different dates but British sources are clear that both losses occurred this night, while minelaying. Both machines came from Kampfgeschwader 40 (KG 40). At dawn (05:21), 12 Hurricanes from 54 Squadron were scrambled to engage a 40 German aircraft approaching the Thames Estuary. The Luftwaffe group had been ordered to the estuary after a convoy had been sighted but the report was mistaken. The German formation split into smaller groups, searching for the ships and British radar tracked the raiders but Hurricanes from 54 Squadron failed to intercept. Aircraft of 56 Squadron took off at 05:45, intercepted a formation of Ju 88s from Kampfgeschwader 4 (KG 4), and forced one down near St Osyth.

Several of Lightvessels had been sunk along the coast, the vessels were tethered and the Trinity House crews could not manoeuvre. Radar usually picked up enemy raiders before they reached the target area but in poor light, the ships were very vulnerable. Both Keith Park and Leigh-Mallory were concerned the Luftwaffe would attack lightships off the East Coast and they decided to put up aerial patrols over the coast near their anchorages. Convoy Bosom sailed from Lyme Bay and Hurricanes from 238 Squadron chased off three Bf 109s; the Hurricanes spotted a Seenotflugkommando 4 He 59 ambulance at 14:30 and shot it down, killing the four crew. As Bosom steamed eastwards, another He 59 from Seenotflugkommando 1 arrived and shadowed the convoy and was attacked by 43 Squadron. A Hurricane was shot down and the pilot bailed out but drowned and the He 59 escaped into cloud. Aircraft from 601 Squadron took over and the Heinkel was shot down; the crew bailed out too low and their parachutes failed to open. As Bosom reached the RAF Kenley and RAF Biggin Hill sectors, there had been plenty of time for the He 59s to report it and Park ordered standing patrols of 24 fighters over Bosom, split evenly between Spitfire and Hurricane units.

At 18:00 the Luftwaffe sent II./StG 1 to attack Convoy Bosom, the first mission for a week. I./JG 27 sent around 50 Bf 109s fighter escorts and a few Bf 110s, with Bf 109s from I. and II./JG 51 in support. Radar alerted British fighter units in good time and Hurricanes from 32 and 615 squadrons with high cover from 5 and 610 Squadron Spitfires had time to assemble and dive out of the sun. The escorts were unable to prevent the attack which damaged four Ju 87s and accounted for two destroyed, Leutnant Roden and his gunner being killed. The Geschwader (Wing) also lost its Do 17 reconnaissance machine shot down near the convoy. The Bf 110s stayed out of the action owing to the strength of the opposition but the Bf 109s reacted quickly and a 30-minute battle began over Bosom. Three Bf 109s were shot down by Spitfires from 615 Squadron. One Bf 109 from I. and II./JG 51 were lost to 32 and 65 squadrons and 32 Squadron lost a Hurricane and its pilot against JG 51 and 501 Squadron lost a fighter and its pilot. A Spitfire from 610 Squadron was written off and its pilot severely wounded. The most notable German loss this day was Hauptmann Riegel, commanding officer of I./JG 27; James "Ginger" Lacey shot down two Bf 109s. While the RAF fighters were dog-fighting, the Ju 87s attacked the convoy and the coaster Pulborough was blown to pieces. The Ju 87s then attacked the destroyer HMS Brazen, which was hit several times. Brazen snapped in half.

21–26 July

On 21 July, Park established standing patrols of twelve fighters over a westbound convoy that passed through the Strait of Dover that day. A Bf 110 over Goodwood and a Do 17 were shot down by 238 Squadron. The convoy reached the Isle of Wight at daybreak and Do 17s escorted by around 50 Bf 109s and Bf 110s from III./JG 27 and V./LG 1 attacked the convoy south of the Needles, where 43 Squadron engaged the formation, shooting down a Bf 109 and a Bf 110 for one pilot killed; 238 Squadron claimed the Bf 110 and the Dorniers failed to damage the ships. The only other daylight action was the destruction of a Do 17 from 4.(F)/121 by Hurricanes of 145 Squadron and 23 July was quiet, a Ju 88 from 4.(F)/121 being shot down by 242 Squadron near Yarmouth. A small convoy passed the strait on 24 July and was attacked by Do 17s from KG 2. Spitfires from 54 Squadron intercepted the attack, no ships were hit and no aircraft were shot down. In the afternoon, StG 1 sank the Terlings and the Norwegian steamer Kollskegg.

A convoy had set out from Medway at 11:00 and was attacked by 18 Do 17s escorted by 40 Bf 109s from Adolf Galland's III./Jagdgeschwader 26 (JG 26). No ? Squadron attacked JG 26 while six 65 Squadron Spitfires joined in and 610 Squadron scrambled to cut off the return route but 65 Squadron could not destroy any of the Do 17s, because their defensive cross-fire was accurate and the formation kept tight, stopping the British fighters from breaking up the formation. JG 26 lost three two Bf 109s; one falling to Colin Falkland Gray, two pilots being killed and one wounded. Running low on fuel, the Bf 109s used the advantage of their fuel-injected engines to dive away. The RAF pilots thought that they had been shot down and claiming six, with eight probables. Bf 109s from III./Jagdgeschwader 52 (JG 52) covered the withdrawal of JG 26, ran into Spitfires from 610 Squadron, lost three and a Spitfire pilot was killed and one wounded during a force-landing. A Ju 88 from I./LG 1 and a He 111 from an unidentified unit were lost with their crews.

Luftflotte 2 carefully timed fighter and bomber sweeps throughout 25 July to exhaust the RAF standing patrols. Once British fighter opposition had spent itself against the Bf 109s, large bomber formations could attack the convoys before reinforcements arrived. At noon, 65 Squadron was in action with JG 52, the Germans losing one fighter and its pilot for no loss to the British. Nine 32 Squadron Hurricanes and 11 from 615 Squadron engaged more than 40 Bf 109s in a dogfight near Dover and one Hurricane was badly damaged. As the battle receded, Ju 87s from 11.(Stuka)/LG 1 and III./StG 1 attacked the convoy. Distress calls from the ships were answered by 54 Squadron which sent nine Spitfires but Bf 109 fighters (unit unknown) shot down two Spitfires for no loss.

Park noted the German attempts to saturate the defences and sent only small numbers of fighters over convoys until a bigger attack developed. In the afternoon, eight Spitfires of 64 Squadron engaged 30 Ju 88s from III./KG 4 escorted by over 50 Bf 109s. Three more Spitfires from 64 Squadron scrambled followed by 12 Hurricanes from 111 Squadron at Hawkinge, 111 Squadron using head-on attacks to break up the formation, which abandoned the attack with the Bf 109s covered their retreat. Soon afterwards a large raid appeared in the vicinity of Dover and a convoy was attacked by Ju 87s from Ju 87s from 11.(Stuka)/LG 1 and III./StG 1, off Folkestone, five ships being sunk and four damaged, including the destroyers HMS Boreas and HMS Brilliant before 56 Squadron arrived. The Kriegsmarine sent nine E-Boats against the convoy and hit three with gunfire. Three Spitfires from 64 Squadron and ten from 54 Squadron arrived and the Bf 109s kept the RAF fighters from the Ju 87s and shot down one Spitfire, killing its pilot; some of the Ju 87s were damaged by naval gunfire. Two Bf 109s from JG 52 were shot down by 610 Squadron. Squadron Leader Thompson, the commander of 111 Squadron reported that he was twice attacked in error by Spitfires.

On 26 July, Fliegerkorps VIII sent 30 Ju 87s to attack Convoy Bacon off Portland, which were intercepted by 238 Squadron Hurricanes, which shot down one before the Bf 109s escorts intervened. A second wave of Ju 87s and Ju 88s were protected by Bf 109s which countered 238 Squadron Hurricanes and 609 Squadron Spitfires, downing one of the later. By dusk, the Admiralty had decided losses to merchant shipping had become prohibitive and cancelled all traffic through the Dover Strait.

A 32 Squadron Hurricane was damaged and a pilot wounded, 54 Squadron lost three Spitfires and two pilots killed, 64 Squadron lost two Spitfires and one damaged with two pilots killed and 152 Squadron, lost a pilot killed by Bf 109s. II./KG 51 lost one Ju 88, StG 1 one Do 17 and a Ju 87. III./JG 27 lost one Bf 109 and JG 52 reported the loss of four Bf 109s. A KG 4 Ju 88 was lost over the Bristol Channel and a He 111 was shot down off Wick. The following day saw two losses for the Luftwaffe and one for the RAF as heavy rains engulfed the Channel.

27–28 July

Early on 27 July news reached Luftflotte 3 in Paris that a large convoy was departing Portland and 30 Ju 87s from I./StG 77 took off from Caen at 08:00, picking up their Bf 109 escort from JG 27 en route. No. 10 Group RAF dispatched three Hurricanes from RAF Middle Wallop, arriving just as the Ju 87s began to attack and a Ju 87 was shot down before the Bf 109s intervened. Meanwhile, Bosom reached Swanage at 09:45 and a second wave of Ju 87s arrived to attack the ships. Nine RAF fighters tried to intercept but failed and lost a 610 Squadron pilot killed. Later on, Hurricanes from 615 Squadron shot down another He 59 off Deal. He 111s attacked shipping off Dover and sank the destroyers, HMS Codrington at Dover and HMS Wren off Aldeburgh with heavy bombs, KG 53 taking credit for the latter vessel, for the loss of a KG 53 He 111, probably to 504 Squadron. The loss of two destroyers led the Admiralty to abandon Dover as an advanced base for destroyers.

Sunday 28 July was sunny and clear when Spitfires of 234 Squadron were ordered to a plot south of Plymouth, found a II./LG 1 Ju 88 and shot it down with only two survivors. Big attacks were anticipated and the Biggin Hill, North Weald and Hornchurch sector controllers moved eight squadrons to Hawkinge, Manston and Martlesham. At 13:50 a large raid was detected forming up and heading to Dover and 74 Squadron took off to intercept. Several other units were sent with instructions for the Hurricanes to attack bombers and Spitfires to engage the fighters. The bombers flew off to the south without bombing and Malan engaged I. and II./JG 51, led by Geschwaderkommodore Werner Mölders, on his first sortie over England. The Bf 109s were also engaged by 41 Squadron and Malan destroyed one Bf 109, then damaged a second.

Three JG 51 Bf 109s were shot down with two pilots killed and one missing, three fighters force-landed, one with 20 percent damage and the other 50 percent; Mölders' machine was 80 percent damaged and he was wounded. 74 Squadron lost three Spitfires, with two pilots wounded and one killed. One Bf 109 from II./JG 27 and another from III./JG 53 force-landed, the pilots wounded, probably by 41 Squadron. Two Ju 88s from 9./KG 4 were damaged by anti-aircraft fire over the Thames Estuary, with one crew member killed and seven wounded. Seenotflugkommando 1 and 3 lost two He 59s, rescuing airmen in the Channel. KG 4 were engaged in mine laying operations in July.

29 July

The dawn mist cleared and fine weather and cloudless skies promised much German activity. The Kent Sector Operations Room received news of a German build-up over Calais. Two convoys were in the Channel in the 11 Group area but the controllers waited. At 07:20 it became clear as the convoys passed the Dover Strait that Dover was the target and 11 Spitfires from 41 Squadron were ordered to attack the right flank and 12 Hurricanes of 501 Squadron from Hawkinge, the German left. The formation consisted of 48 Ju 87s from six Staffeln of IV.(Stuka)/LG 1, II./StG 1 and II./StG 3. The escort consisted of 80 Bf 109s from JG 51 and III./JG 26, the former led by Galland as Mölders was recovering from the wound received the day before.

The leading escort formation was on the extreme right, looking down-sun at the Stukas but when 41 Squadron dived to attack the Ju 87s they were not seen by III./JG 26. JG 51 engaged the RAF fighters and the Spitfires split against the escorts. 41 Squadron lost one Spitfire shot down and its pilot killed, four damaged and forced to crash-land. While 41 Squadron fought the fighters, 501 Squadron attacked the Ju 87s as they began to dive and the harbour suffered little damage. StG 1 and LG 1 lost two Stukas each and II./StG 3 reported one damaged, 501 Squadron suffering no losses. The steamer SS Gronland was sunk in the outer harbour, having already been damaged in the attacks of the 25 July and 19 crew were killed and the patrol yacht Gulzar was sunk but the crew were saved; Sandhurst was destroyed. (The men of Sandhurst received six mentions in dispatches and the Dover port personnel were awarded four George Medals—the last to Tug Harbour Master Captain F. J. Hopgood.)

III./KG 76 sent Ju 88s under the British radar, to bomb the convoys from low altitude but the bombers scored no direct or near misses. The Gruppenkommandeur, Adolf Genth, was killed when he flew into a balloon cable off Dungeness and another was lost with its crew, when it was shot down by the escort ships. Observers called for fighter assistance and 610 Squadron Spitfires were sent but the Ju 88s were long gone. The other convoy was attacked by KG 2 after a Dornier from the Stab. Staffel reported its position and was then chased to the French coast by Spitfires from 85 Squadron, damaged and made a forced-landing at Saint-Inglevert Airfield. Eight Bf 110s from 1. Staffel and three machines from 2. Staffel were met near Dunkirk by 30 Bf 110 escorts from ZG 26 and were attacked by 151 Squadron Hurricanes. Two Hurricanes force-landed, the pilots unharmed, an Erpro 210 Bf 110 was damaged and ZG 26 suffered no losses, the attackers claiming hits on a 1,000 GRT and an 8,000 GRT ship.

At 19:25 III./StG 2 Ju 87s led by Gruppenkommandeur Walter Enneccerus sank the destroyer HMS Delight 13 nautical miles (24 km; 15 mi) off Portland. The ship was crippled and burning as the Stukas left the scene unchallenged and Delight made for the coast off Portland. The destroyers HMS Vansittart and Broke rescued 147 men and 59 wounded but 19 of the crew were killed. The burning vessel remained afloat until 21:30, when there was a large explosion and it sank. The Admiralty withdrew all destroyer flotillas from the Channel and ordered no convoy to sail the Channel in daylight. This order had been given on 26 July before Delight sailed and some sources note that standing orders had been broken. The Admiralty had issued instructions to abandon the Dover area as a merchant route on 26 July and on 29 July, RAF reconnaissance discovered that the Germans were assembling long-range guns at Calais, the Admiralty ordered the abandonment of Dover as a base in favour of Harwich and Sheerness. There was no desire on the part of the Admiralty to maintain a Destroyer division at Dover. Only one seaworthy destroyer, HMS Vivacious, remained. She was used to escort the crippled HMS Walpole and the damaged Brilliant, towed by the Lady Brassey to Sheerness. HMS Skate, the oldest destroyer in the navy, was lent to Dover Command by Portsmouth and the force was reinforced by HMS Bulldog until the return of the damaged vessels.

The Germans viewed the British naval withdrawal and suspension of merchant traffic as a success but the lack of targets for the Germans, eliminated the need for Fighter Command to engage the Luftwaffe over the Channel. The Germans now had to fly into southern England, which put the Bf 109, the best German fighter, at the limit of its endurance. Hitler's Directive No. 17 expanded the scope of the air offensive from the English Channel to British airfields. When Göring held a meeting with the OKL staff at The Hague on 1 August, he emphasised the need for German fighters to conserve fuel, which remained a severe handicap for the Germans.

The Admiralty suspended convoys until they could be better defended but in the last week of the month, the busiest of the Kanalkampf, 103 ships had been escorted in convoy through the straits. Losses to air attack amounted to 24,000 long tons (24,000 t) from 10 July – 7 August, substantially less than sinking caused by mines. Convoy escort was made a combined operation and Fighter Command sent bigger formations over the convoys, since smaller formations had been shown to be too vulnerable against the tactical advantages of greater numbers, height and surprise enjoyed by the Luftwaffe. The larger formations could not prevent attacks on convoys but the standing patrols were less likely to be overwhelmed by German fighters. A Mobile Balloon Barrage Flotilla (MBBF) of small ships was established to inhibit air attacks and first sailed with Convoy CW 9 on 4 August and later on kites were used instead of balloons, which were too vulnerable to gunfire. A Channel Guard of sailors was trained at the gunnery school at Portsmouth to use light machine-guns and two to three teams joined each westbound ship on the Thames. After the journey the guard joined eastbound ships or took the train back to Southend.

The size of convoys was reduced by half and modern Hunt-class destroyers, better equipped for anti-aircraft operations, replaced the older escorts. More escorts were provided and convoys had minesweeper trawlers ahead, two destroyers in close escort, 3–4 anti-submarine trawlers, six Motor Anti-submarine Boats (MA/SBs) or Motor Launches, 6–8 MBBF balloon ships and larger formations of fighters overhead. More escorts could not prevent ships being sunk but the greater number of Fighter Command aircraft made dive-bombing much more difficult and losses never again became serious. On 5 August, CE 8 sailed east from Falmouth at night, sheltered in ports during the day and reached the Thames estuary with no losses. On 7 August, Convoy CW 9 sailed from the Thames Estuary with 25 ships and was attacked by E boats during the night, which sank three ships. By morning, when the Luftwaffe attacked, the remaining ships were scattered over 10 sq mi (26 km2) but the raid was intercepted by 145 Squadron and no ships were sunk.

30 July – 6 August

On 30 July, Britain was covered in low cloud and continuous rain, Dowding expecting the Germans to use the weather to hide their attacks and patrols were sent over convoys and minesweeper units but the Luftwaffe did not operate in strength. He 111s from KG 26 harassed the Scottish coast from bases in Norway, near Suffolk two Bf 110s of Erprobungsgruppe 210 (ErpGr: development unit) stalking a convoy, were caught by Geoffrey Allard and his wingman and after a long chase one German aircraft was shot down. The following day the weather improved but haze covered southern England. The Luftwaffe attempted some raids but could not find their targets, the RAF made two interceptions and Hurricanes from 111 Squadron damaged a Ju 88 from III./KG 76.

At 16:00, six squadrons with 30 Spitfires and 24 Hurricanes were scrambled to Dover where Bf 109s were strafing barrage balloons. The 12 Spitfires from 74 Squadron led by Malan, engaged two Staffeln of JG 2 under the command of Harry von Bülow-Bothkamp. A flight from 74 Squadron engaged the Bf 109s at equal height but the second flight was attacked while climbing and lost two Spitfires and one pilot killed. The day ended with one 7./JG 2 Bf 109 destroyed and one pilot wounded, in exchange for two Spitfires lost and one damaged; two RAF pilots were killed.

On 1 August, Dowding returned the establishment of fighter squadrons to the pre-Battle of France figure of 20 aircraft plus two in reserve. The number of Fighter Command pilots also increased and 1,414 pilots were in service in July, compared to the establishment of 1,454. The success of pilot training led Dowding to increase the figure to a minimum of 1,588 pilots, creating a paper deficiency, that led to the belief that Fighter Command was understaffed. The number of operational pilots never fell below the number available at the end of July. Dowding was more concerned by the dilution of pilot quality, losing more than 80 regular pilots and flight commanders, whose place was taken by less experienced men.

A Henschel Hs 126 was shot down by 145 Squadron Hurricanes but the rear gunner killed one of the British pilots; both German airmen were posted missing. I./KG 4 crossed the coast near Norfolk, while Wing Commander Walter Beisiegel, the Coltishall Sector Controller, was busy organising convoy protection. The Boulton-Paul factories near Norwich and the Thorpe railway goods yards were damaged and the Germans escaped, despite the 66 and 242 Squadron airfields being 10 minutes flying time away. On 2 August, KG 26 He 111s attacked a convoy off Scotland and anti-aircraft fire brought one down on the deck of the steamer Highlander, which steamed to Leith, where the aircraft was displayed and another He 111 was shot down. ErpGr 210 sank the 590 GRT trawler Cape Finisterre. For the next five days both sides suffered virtually no combat casualties.

7 August

At 07:00 on 7 August 1940, Peewit, a coal convoy sailed from Southend and a Do 17 crew of KG 2 on patrol over the Channel spotted two minesweepers, which were searching for mines dropped by He 115s of Küstenflieger-Gruppe 106. The crew flew north into the North Sea, missing the large convoy approaching from the west and landed soon afterwards. Peewit continued through the Channel and reached Dover at 14:30, with three Hurricanes from 85 Squadron covering the convoy. Winds were light but overhead fog down to 2,000 ft (610 m) gave the convoy cover, with visibility from 2–5 nautical miles (3.7–9.3 kilometres; 2.3–5.8 miles). As Peewit rounded Dover, it was escorted by Hurricanes from 32, 615 and 501 squadrons and just under four hours later, reached Dungeness unseen;As visibility improved, a German radar station at Wissant detected the convoy.

At 18:30 the sighting was relayed to the headquarters of Alfred Saalwächter, Commander-in-Chief of Kriegsmarine Group Command West. The information was then passed to Carl-Heinz Birnbacher, commander of 1. Schnellbootflottille (1st Fast Attack Boat Flotilla) in Cherbourg. S-20, S-21, S-25 and S-27 (commanded by Siegfried Wuppermann, Götz Freiherr von Mirbach, Bernd Klug and Hermann Büchting) were ordered to readiness. The British ordered four Motor Torpedo Boats (MTBs) from Dover Command eastwards, to reconnoitre German movements among the French Channel ports. The MTBs sighted the German boats but did not engage, considering their mission was one of reconnaissance. Birnbacher suspected a trap took a position off Beachy Head and Newhaven and at 02:00 on 8 August, the attack began.

Büchting sank SS Holme Force with torpedoes within a minute, the cargo of coke spilling into the sea and six of the 13 crew being killed. The British were surprised and thought that the noise of the S-Boats was an air attack; the Norwegian SS Tres stopped engines and avoided attracting attention and Fife Coast increased speed to 12 nautical miles (22 km; 14 mi) and zig-zagged. With surprise gone, the Germans fired flares to illuminate the ships and Fife Coast was seen and sunk. The destroyer Bulldog arrived but could do little in the darkness, its gunners struggled to see the fast E-Boats. Polly M steamed through the wreckage of Fife Coast and threw the Germans off. Her Captain, P. Guy, stated the vessel blew up. SS Rye survived an attack by S-27 (It was sunk on 7 March 1941 by the same vessel.) and Wupperman attacked SS Polly M and SS John M. The captains skilfully evaded torpedoes but Wuppermann raked SS Polly which machine-gun and cannon fire, causing damage and the crew abandoned SS Polly. The crew re-boarded the next morning and the ship limped into Newhaven. SS John was fired on for nearly two hours but remained afloat. The E-Boat crews claimed to have sunk 17,000 GRT of shipping but only 2,588 GRT was sunk. At 04:20, Bristol Blenheims from 59 Squadron took off from Thorney Island to intercept the E-Boats but returned without success after three hours.

8 August

Next day dawned fine and Peewit was scattered over 10 square miles (26 km2), the leading ships with only the barrage balloon vessel HMS Borealis to guard against air attack. A Do 17P from 4.(F)/14 had been sent to report on the convoy and found 17 vessels south of Selsey Bill, the Dornier was spotted and the captain said "look, the angel of death". The Dornier reported the ships and Fliegerkorps VIII dispatched II. and II./StG 1 to attack the convoy.

From 09:00–10:45, the Stukas (commanded by Major Paul-Werner Hozzel and Hauptmann Helmut Mahlke) dive-bombed the convoy, covered by Bf 109s from JG 27. The Dutch vessel SS Ajax (172) carrying a cargo of Wheat was sunk in five minutes, with four men killed and four wounded and SS Coquetdale was sunk with two men wounded. 601 Squadron soon arrived for convoy escort but Spitfires from 609 and 234 Squadron arrived too late to engage, despite flying at full speed and three aircraft had to make emergency landings due to fuel shortage. Three Hurricanes from 145 Squadron made contact.Three more from the Squadron assisted. In a confused engagement, III./StG 1 lost two Ju 87s, II./StG 1 suffered one damaged and three Bf 109s were shot down by 145 Squadron for a loss of two Hurricanes and pilots at 09:00.

In the late morning StG 2, 3 and 77 from Angers, Caen and St. Malo were escorted by Bf 110s from V./LG 1, to attack the convoy south of the Isle of Wight, with about 30 Bf 109s from II. and III./JG 27 for high cover. From 12:20, Spitfires of 609 Squadron and Hurricanes from 257 and 145 squadrons attacked the German formations, joined later by 238 Squadron. The Ju 87s severely damaged SS Surte, MV Scheldt and SS Omlandia and sank SS Balmaha soon after. SS Tres was sunk by StG 77. SS Empire Crusader in the lead, was hit by StG 2 and sank several hours later; four ships were sunk and four were damaged in the attacks. From 20–30 RAF fighters attacked the German aircraft and I. and II./StG 2 suffered one damaged Ju 87 each, StG 3 lost three Stukas from I. Gruppe and two damaged. LG 1 lost one Bf 110 and three damaged, JG 27 lost three Bf 109s and two damaged, the three lost pilots coming from II. Gruppe. Three Hurricanes from 238 Squadron were shot down and two pilots were killed by Bf 109s. Squadron Leader H. A Fenton, was wounded while shooting down a He 59 floatplane and rescued by the trawler HMS Basset. 64 Squadron lost a Spitfire and 65 Squadron lost two over Dover from 10:45–12:07, along with the three pilots in unrelated engagements; JG 27 lost nine Bf 109s.

I./StG 1 tried to locate the convoy and while reporting 9/10 cloud cover, far from ideal for dive-bombing attack and the cloud-base ended from 3,500–4,000 feet (1,100–1,200 m) above the sea and Hozzel abandoned the mission. Hauptmann Waldemar Plewig the commander of II./StG 77 used his discretion to fly over the convoy from Le Havre in the unit Do 17P reconnaissance aircraft and found the conditions good enough for an attack and 82 Ju 87s from III./StG 1, I./StG 3 and Stab, II./StG 77 were alerted. Major Walter Sigel led StG 3 to rendezvous with escorts from Bf 110s from II./Zerstörergeschwader 2 (ZG 2, Destroyer Wing 2), LG 1 and Bf 109s from II./JG 27.

III./JG 26, II. and III./JG 51 flew a fighter sweep to clear the skies before the attack and engaged Nos. 41, 64 and 65 Squadrons, claiming eight Spitfires around 12:55 CET. Among the claimants were Joachim Müncheberg (11th claim) and Gerhard Schöpfel (5th and 6th claims). Schöpfel claimed a Blenheim from 600 Squadron which was lost with its crew, after taking off from Manston in the midst of the battle. A 64 Squadron Spitfire was shot down with the pilot seriously wounded at 12:07 GMT, the same time and location; 41 Squadron suffered no losses and probably damaged a Bf 109 of II./JG 53 and one from III./JG 54 that arrived. Two Spitfires were lost by 65 Squadron at 10:45 GMT (earlier than the German claims at 12:55 CET.)

The ships of CW 9 had sailed on and the anti-submarine yachts HMS Wilna, HMS Rion, trawlers HMS Cape Palliser, Kingston Chrysoberyl, Kingston Olivine and Stella Capella were attacked, having been sent to rescue survivors. Cape Palliser and Rion were badly damaged; Fighter Command sent 145 and 43 squadrons to defend the convoy. Just after 16:00, three 145 Squadron Hurricanes were lost with their pilots against Bf 110s and three more were lost from 43 Squadron, five of the pilots being killed. Three StG 77 Stukas were shot down by 145 Squadron and four were damaged by 43 Squadron (two were 70 percent and 80 damaged). LG 1 suffered two damaged Bf 110s and three Bf 109s from II./JG 27 were lost, two shot down by 43 Squadron and one was damaged; no ships were hit and none were sunk. 152 and 238 squadrons tried to intercept but failed to make contact with the attackers but 152 Squadron met Bf 109s from JG 53 12 miles (19 km) south of Swanage and two Spitfires were damaged and force-landed, the pilots unhurt. II./JG 53 claimed two Spitfires and a Hurricane for no loss. II./JG 53 commanded by Günther Freiherr von Maltzahn flew from Guernsey.

11 August

The Luftwaffe flew few sorties from 9–10 August and Adlerangriff (Operation Eagle Attack) had not occurred. The events of 11 August 1940 increased the ferocity and tempo of German air operations now that a large period of clear and fine weather was predicted. The day's operation amounted to a coordinated attack on No. 10, 11 and 12 Groups coupled with naval interdiction activity in the Channel. Kesselring hoped to draw out and disperse Park's defences by sending out large numbers of single Staffeln. With the exception of the early morning, Park did not take the bait. While a high proportion of No. 11 Group aircraft were forced into the air it did not achieve Kesselring's aim of attracting enforcements from other RAF Groups.

In the morning Hauptmann Walter Rubensdörffer led Erprobungsgruppe 210 and 17 Bf 110s on a strafing attack on Dover. Covered by a flight of Bf 109s the escort dispatched three barrage balloons from No. 961 Balloon Squadron. The Bf 110s released light bombs but did little damage. Park reacted by committing 74 Squadron (Adolph "Sailor" Malan). The unit ran into three Staffeln of Bf 109s from JG 51. The closing speed was so fast a fleeting firing pass was made by opposing the fighters which resulted in one British pilot ditching in the sea, later to be rescued and Hurricanes of 32 Squadron tried to engage the Bf 109s. I./JG 2 and 64 Squadron met and two Bf 109s were shot down, one pilot was wounded and the other killed.

Park soon identified the naval base at Portland as the Germans' main objective for the day. Radar detected a large build-up over the Cherbourg peninsula. He ordered No. 609 and No. 1 Squadron up from Warmwell and Tangmere. Six other units from Middle Wallop and Exeter, Tangmere and Warmwell were ordered to readiness. Some 53 fighters were now involved. The enemy approached in strength in the late morning. Around 54 Ju 88s from I., and II./KG 54 were supported by 20 He 111s from KG 27. I., and II./ZG 2 provided 61 Bf 110s as escort which were reinforced by 30 Bf 109s from III./JG 2 under the command of Erich Mix. JG 27 provided withdrawal cover. It was the largest raid yet sent against a British target. Within a minute from 10:04, 145, 152, 87, 213 and 238 Squadrons were scrambled to support the two airborne Squadrons.

The Bf 109s and Bf 110s arrived ahead of the bombers. 609 Squadron attacked, the flight containing future ace John Dundas. The battle commenced at 23,000 feet (7,000 m). Squadron leader Horace Darley led the Spitfires onto the flank of the enemy Bf 110s and fired full-deflection shots which enabled his pilots to avoid the powerful frontal guns of the German heavy fighters. The attack shot down five of the Bf 110s. Among the dead was Gruppenkommodore Major Ott, shot down by Noel Agazarian. Most of the British units fell for the trap, and became engaged with the escort with only four 152 Spitfires spotting the bombers as they headed for Portland and Weymouth. The He 111s bombed from 15,000 feet (4,600 m) while the Ju 88s dropped to 10,000 feet (3,000 m) and hit the oil storage tanks. The destroyer HMS Esk was damaged at Harwich while HMS Scimitar and Skate were damaged in Portland. HMS Windsor was damaged off Botany Buoy. The armed trawler HMT Edwardian was run aground at North Foreland to prevent it sinking. The trawler Peter Carey was severely damaged and the steamer Kirnwood and tanker Oil Trader were hit.

JG 27 were involved in combat as they covered the raid's withdrawal. JG 27 lost three of its number to 238 and 145 squadrons but the German fighters destroyed four 238 Hurricanes and killed four pilots while damaging another. 145 suffered two damaged and two destroyed and two pilots killed. The massive dogfight resulted in the loss of 16 Hurricanes with 13 pilots killed and two wounded. A 152 Squadron Spitfire was lost and its pilot drowned. German losses amounted to six Bf 110s, five Ju 88s, one He 111 and six Bf 109s. The number of aircraft lost over the Channel prompted both sides to send forces out to locate survivors. Two Blenheims from 604 covered by 152 Squadron Spitfires scouted the Dover–Calais straits. They came across a solitary He 59 protected by Bf 109s. The Spitfires held off the German fighters while the Blenheims destroyed the He 59. 610 also caught and destroyed a He 59 but were attacked in-turn by Bf 109s and lost two pilots killed.

The day's events came to a close with a final German attack on convoys Booty, Agent and Arena. Walter Rubensdörffer led ErpGr 210 off the Harwich–Clacton coast at noon GMT. The Germans spotted the ships and began their bombing run against Booty. Rubensdörffer and his Zerstörer were accompanied by eight Dornier Do 17s from the specialist 9./KG 2, whose crews were trained for low-level attacks. Twenty Bf 110s from ZG 26 provided high cover for the bombers. The fighters were intercepted by Spitfires from 74 and 85 squadrons while six Hurricanes from 17 Squadron attacked. 85 Squadron led by Peter Townsend shot down three Bf 110s and the Hurricanes one more; two Bf 110s and three Do 17s were damaged. Rubensdörffer's group attacked and withdrew. It was followed by another raid, designed to catch those fighters already in combat when they were low on fuel and unable to assist. ZG 26 destroyed one Hurricane and damaged another from 17 Squadron killing one pilot. Two pilots from 74 Squadron were shot down and killed.

The second wave of 45 Do 17s and a Staffel of Ju 87s from II./StG 1 and IV./LG 1 arrived over the Thames Estuary to hit Agent and Arena, which were hugging the coast. The formation was protected by Bf 109s belonging to JG 26 and led by Adolf Galland. 111 and 74 Squadrons were scrambled, with Malan leading, who claimed a Bf 109 which crash-landed in France. One StG 1 Ju 87 also fell to his unit before the Bf 109s arrived. German records say a 9./KG 4 Do 17 was lost to Hurricanes but no corresponding claim can be found in British records. 111 Squadron lost four Hurricanes and one crash-landed; four pilots were killed with two believed drowned. The weather forced the Germans to curtail operations in the early afternoon and the lull lasted until the following morning with Adlertag. The raid sank two naval trawlers—Tamarisk and Pyrope killing 12 seamen.

On 12 August, on the same day Adlertag was launched, the Germans began to bombard convoys with heavy guns emplaced at Cap Gris Nez to protect an invasion force. Coaster crews sailing past at 5–6 kn (5.8–6.9 mph) found the bombardments highly stressful but none of the ships were hit. After the operations against CW 9, the Luftwaffe campaign against inland targets and though the coastal convoys remained vulnerable the traffic continued. Losses to the Luftwaffe were only a small proportion of the 4,000,000 long tons (4,100,000 t) of shipping which sailed along the south coast during the Kanalkampf but at its peak, the Luftwaffe anti-shipping campaign damaged or sank 13 of the ships off the south coast. Had losses continued at such a rate, it would have become impossible to find new crews for the ships. S. W. Roskill, the Royal Navy official historian, wrote in 1957, that the operations were costly for both sides; had the RAF failed to increase the convoy protection effort, the route would probably have been abandoned.


The Kanalkampf was the beginning of the Battle of Britain and occurred because the Germans needed time to establish airfields along the French and Belgian coasts for the air assault on south-east England and replace the losses of May and June. The German High Command and Hitler were also uncertain about how to proceed, and attacking shipping was the only way for the Luftwaffe to engage Fighter Command.

Hitler issued directive 16 on 16 July, for the preparation of an invasion fleet but Göring did not see an invasion as the solution to the British problem and failed to attend any of the conferences to improve inter-service co-operation for a landing in Britain before 1 August. Göring may still have believed that the British would negotiate and was content for the Channel battles to continue. On 19 July, Göring decided to escalate the air campaign and approved a directive to destroy British air power. Hitler issued Directive 17 on 1 August, intending the air operation to be a prelude to invasion, which expanded the scope of Göring's 19 July directive. The campaign against the RAF was to begin around 5 August, depending on suitable weather for mass air operations.

Göring met his staff officers in The Hague, Netherlands on 1 August. Göring believed the inaccurate German intelligence dossiers from Abteilung 5 (the Luftwaffe Military Intelligence Branch), under the command of Joseph Schmid, that the RAF defences were weak and could be defeated within days. Göring hoped that an aerial victory would encourage the British to sue for terms, which would preclude a risky cross-Channel invasion against Royal Navy; Göring was confident the battle would be over quickly. In the second week of August, Luftflotten, 2, 3 and 5, were ready to begin the assault on England proper. While the Channel battles and the campaign against shipping was sidelined, the air war intensified over English air bases.


In 1953, Richards wrote that from 10 July to 10 August the RAF shot down 227 Luftwaffe aircraft for a loss of 96 fighters. In 1969, Mason wrote that the Luftwaffe lost 201 airmen killed, 75 wounded, 277 missing and 16 taken prisoner, 80 fighters destroyed and 36 damaged, 22 Stuka Dive bombers shot down and 22 damaged, 100 medium bomber losses and 33 damaged, 13 naval aircraft were destroyed and one damaged. Fighters: 53 Bf 109s were destroyed and 21 damaged, 27 Bf 110s shot down and 15 damaged; medium bombers: 24 Ju 88s shot down, 10 damaged, 28 Do 17s lost and 17 damaged, 33 He 111s destroyed and six damaged; air-sea rescue: 10 He 59s destroyed, one damaged and 3 He 115s destroyed. Four E-boats of the Kriegsmarine were damaged or sunk.

Mason listed an RAF loss of 71 pilots killed, 19 pilots wounded and 4 pilots missing; 115 fighters were destroyed and 42 damaged, of which: 45 Spitfires were shot down, 20 were severely damaged and four were lightly damaged, 64 Hurricanes were lost, twelve were severely damaged and six lightly damaged; six Defiants were shot down, 10 aircrew killed and two wounded. The Merchant Navy and neutral states lost 35 ships sunk along with seven fishing vessels and the Royal Navy lost four destroyers, with at least 176 sailors killed among c. 300 casualties.


Kanalkampf Wikipedia

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