HMS H49
1919 H-class submarine
HMS H49 was a British H-class submarine built by William Beardmore and Company, Dalmuir. She was launched on 15 July 1919 and commissioned on 25 October 1919. The submarine saw active service in the Second World War, but was sunk off the Netherlands by German patrol vessels on 18 October 1940.
Design
Like all post-H20 British H-class submarines, H49 had a displacement of 423 long tons (430 t) at the surface and 510 long tons (520 t) while submerged. It had a total length of 171 feet (52 m), a beam of 15 feet 4 inches (4.67 m), and a draught of 39 feet 4 inches (12 m). It contained diesel engines providing a total power of 480 horsepower (360 kW) and two electric motors each providing 320 horsepower (240 kW). The use of its electric motors made the submarine travel at 11 knots (20 km/h; 13 mph). It would normally carry 16.4 long tons (16.7 t) of fuel and had a maximum capacity of 18 long tons (18 t).
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.
“HMS H49” enters the record as 1919 H-class submarine. Crown Archives preserves that source wording while asking what H-class and submarine can confirm, complicate or overturn.
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This entry incorporates text from “HMS H49” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.