German submarine U 238

Design

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-238 had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged. She had a total length of 67.10 m (220 ft 2 in), a pressure hull length of 50.50 m (165 ft 8 in), a beam of 6.20 m (20 ft 4 in), a height of 9.60 m (31 ft 6 in), and a draught of 4.74 m (15 ft 7 in). The submarine was powered by two Germaniawerft F46 four-stroke, six-cylinder supercharged diesel engines producing a total of 2,800 to 3,200 metric horsepower (2,060 to 2,350 kW; 2,760 to 3,160 shp) for use while surfaced, two AEG GU 460/8–27 double-acting electric motors producing a total of 750 metric horsepower (550 kW; 740 shp) for use while submerged. She had two shafts and two 1.23 m (4 ft) propellers. The boat was capable of operating at depths of up to 230 metres (750 ft).

The submarine had a maximum surface speed of 17.7 knots (32.8 km/h; 20.4 mph) and a maximum submerged speed of 7.6 knots (14.1 km/h; 8.7 mph). When submerged, the boat could operate for 80 nautical miles (150 km; 92 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 8,500 nautical miles (15,700 km; 9,800 mi) at 10 knots (19 km/h; 12 mph). U-238 was fitted with five 53.3 cm (21 in) torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, one 8.8 cm (3.46 in) SK C/35 naval gun, 220 rounds, and an anti-aircraft gun. The boat had a complement of between forty-four and sixty.

Service history

U-238 was a member of four wolfpacks; she was a successful, if short lived boat, sinking four freighters and damaging another during her operations against Allied convoys in the Battle of the Atlantic. She had the misfortune, however, of serving at the turning point of the war, when Allied countermeasures were taking a heavy toll on the U-boat force. She conducted three war patrols, beginning in September 1943, following her warm-up trials in the Baltic Sea.

War Patrols

U-238's first patrol was conducted from Trondheim in Norway as part of the 1st U-boat Flotilla, and entailed the submarine exiting the North Sea via the Denmark Strait and operating against Allied shipping in the so-called "air cover gap" in the Central Atlantic, where Allied aircraft had insufficient range to effectively operate against German U-boats. This first patrol was by far the most successful, as on 20 September 1943, the boat attacked a large convoy, sinking one 7,000-ton cargo ship and damaging another. This was followed by three more victims on 23 September, when two Norwegian ships and a British freighter were sunk from the same convoy.

U-238's second patrol was less successful. Two weeks after leaving Brest, on the French Atlantic coast, she was attacked by a Grumman TBF Avenger torpedo bomber from the escort carrier USS Bogue (CVE-9), whose rockets killed two crew members and wounded five more, prompting the submarine to return to Brest with severe damage, which put her out of service for a month. It was during this patrol that the submarine captured two British Royal Air Force personnel whose Vickers Wellington bomber had been shot down by U-764.

U-238's third and last patrol began in January 1944, and lasted a fruitless month, until on 9 February, she was caught by convoy escorts of SL-147 and MKS-38 270 nautical miles (500 km) off Cape Clear. She counter-attacked, unsuccessfully, and was sunk by the sloops, HMS Kite, Magpie and Starling. There were no survivors.

Wolfpacks

U-238 took part in four wolfpacks, namely.