Name HMS H48 Commissioned 23 June 1919 Launched 31 March 1919 | Laid down 30 November 1917 Fate Sold, 30 August 1935 Construction started 30 November 1917 Length 52 m | |
Displacement 423 long tons (430 t) surfaced510 long tons (518 t) submerged Builder William Beard and Company | ||
HMS H48 was a British H class submarine built by William Beardmore and Company, Dalmuir. She was laid down on 30 November 1917 and was commissioned on 23 June 1919. It had a complement of twenty-two crew members. HMS H48 was sold on 30 August 1935 in Llanelly.
Design
Like all post-H20 British H-class submarines, H48 had a displacement of 440 tonnes (490 short tons) at the surface and 500 tonnes (550 short tons) while submerged. It had a total length of 171 feet (52 m), a beam length of 15 feet 4 inches (4.67 m), and a draught length of 12 metres (39 ft). It contained a diesel engines providing a total power of 480 horsepower (360 kW) and two electric motors each providing 320 horsepower (240 kW) power. The use of its electric motors made the submarine travel at 11 knots (20 km/h; 13 mph). It would normally carry 16.4 tonnes (18.1 short tons) of fuel and had a maximum capacity of 18 tonnes (20 short tons).
The submarine had a maximum surface speed of 13 knots (24 km/h; 15 mph) and a submerged speed of 10.5 knots (19.4 km/h; 12.1 mph). Post-H20 British H-class submarines had ranges of 2,985 nautical miles (5,528 km; 3,435 mi) at speeds of 7.5 knots (13.9 km/h; 8.6 mph) when surfaced. H48 was fitted with an anti-aircraft gun and four 21 inches (530 mm) torpedo tubes. Its torpedo tubes were fitted to the bows and the submarine was loaded with eight 21 inches (530 mm) torpedoes. It is a Holland 602 type submarine but was designed to meet Royal Navy specifications. Its complement was twenty-two crew members.