HMS H34 was one of the seven H class submarines to survive until the end of World War II. During Warship Week 1942 H34 was adopted by West Dean RDC (Gloucestershire). She was sold for scrapping in Troon in July 1945.
Like all post-H20 British H-class submarines, H34 had a displacement of 423LT at the surface and 510LT while submerged.[1] It had a total length of 171feet,[2] a beam of 15feet, and a draught of . It contained a diesel engines providing a total power of and two electric motors each providing power.[3] The use of its electric motors made the submarine travel at 11kn. It would normally carry 16.4LT of fuel and had a maximum capacity of 18LT.[4]
The submarine had a maximum surface speed of 13kn and a submerged speed of 10.5kn. Post-H20 British H-class submarines had ranges of 2985nmi at speeds of 7.5kn when surfaced.[1] [3] H34 was fitted with an anti-aircraft gun and four torpedo tubes. Its torpedo tubes were fitted to the bows and the submarine was loaded with eight torpedoes.[1] She was a Holland 602 type submarine but was designed to meet Royal Navy specifications. The complement was twenty-two crew members.[1]