HMS H50 was a British H class submarine built by William Beardmore and Company, Dalmuir.

HMS H50 was one of seven ships to survive to the end of World War II .

[3] The use of its electric motors made the submarine travel at 11 knots (20 km/h; 13 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.

[1] It is a Holland 602 type submarine but was designed to meet Royal Navy specifications.