HMS H47
HMS H47 was a British [British British H-class submarine|H-class submarine|H-class] submarine built by William Beardmore and Company, Dalmuir. She was laid down on 20 November 1917 and was commissioned on 25 February 1919. The submarine had a complement of twenty-two crew members. HMS H47 was sunk in a collision with the British L-class submarine off Milford Haven, Wales, on 9 July 1929. Twenty one of the crew were lost with only three survivors.
Design
Like all post-H20 British H-class submarines, H47 had a displacement of at the surface and while submerged. It had a total length of, a beam of, and a draught of. It contained a diesel engines providing a total power of and two electric motors each providing power. The use of its electric motors made the submarine travel at. It would normally carry of fuel and had a maximum capacity of.The submarine had a maximum surface speed of and a submerged speed of. Post-H20 British H-class submarines had ranges of at speeds of when surfaced. H47 was fitted with an anti-aircraft gun and four torpedo tubes. Its torpedo tubes were fitted to the bow and the submarine was loaded with eight torpedoes. It is a Holland 602 type submarine but was designed to meet Royal Navy specifications. Its complement was twenty-two crew members.