Name HMS E51 Commissioned 27 January 1917 Class and type E class submarine Launched 30 November 1916 | Laid down 30 November 1916 Fate Sold, 13 October 1921 Construction started 30 November 1916 Length 55 m | |
Displacement 662 long tons (673 t) surfaced
807 long tons (820 t) submerged Builder Scotts Shipbuilding and Engineering Company | ||
HMS E51 was a British E class submarine built originally ordered from Yarrow, Scotstoun but transferred to Scotts, Greenock on 3 March 1915. HMS E51 was laid down on 30 November 1916 and commissioned on 27 January 1917. E51 was sold for scrap on 13 October 1921.
Design
Like all post-E8 British E-class submarines, E51 had a displacement of 662 tonnes (730 short tons) at the surface and 807 tonnes (890 short tons) while submerged. She had a total length of 180 feet (55 m) and a beam length of 22 feet 8.5 inches (6.922 m). She was powered by two 800 horsepower (600 kW) Vickers eight-cylinder two-stroke diesel engines and two 420 horsepower (310 kW) electric motors. The submarine had a maximum surface speed of 16 knots (30 km/h; 18 mph) and a submerged speed of 10 knots (19 km/h; 12 mph). British E-class submarines had fuel capacities of 50 tonnes (55 short tons) of diesel and ranges of 3,255 miles (5,238 km; 2,829 nmi) when travelling at 10 knots (19 km/h; 12 mph). E51 was capable of operating submerged for five hours when travelling at 5 knots (9.3 km/h; 5.8 mph).
E51 was armed with a 12-pounder QF gun mounted forward of the conning tower. She had five 18 inches (460 mm) torpedo tubes, two in the bow, one either side amidships, and one in the stern; a total of 10 torpedoes were carried.
E-Class submarines had wireless systems with 1 kilowatt (1.3 hp) power ratings; in some submarines, these were later upgraded to 3 kilowatts (4.0 hp) systems by removing a midship torpedo tube. Their maximum design depth was 100 feet (30 m) although in service some reached depths of below 200 feet (61 m). Some submarines contained Fessenden oscillator systems.