HMS H1

HMS H1 was a H-class submarine built by Canadian Vickers Co., Montreal for the British Royal Navy. She was laid down on 11 January 1915 and was commissioned on 26 May 1915. H1 crossed the Atlantic from St. John's, Newfoundland to Gibraltar escorted by the armed merchant cruiser HMS Calgarian. She was accompanied by H2, H3 and H4. H1 mistakenly sank the Italian submarine H5 off Cattaro on 15 April 1918. H1 was sold on 7 March 1921 in Malta.

History
United Kingdom
NameHMS H1
BuilderCanadian Vickers, Montreal
Laid down11 January 1915
Commissioned26 May 1915
FateSold, 7 March 1921
General characteristics
Class and typeH-class submarine
Displacement
  • 364 long tons (370 t) surfaced
  • 434 long tons (441 t) submerged
Length150 ft 3 in (45.80 m)
Beam15 ft 4 in (4.67 m)
Installed power
Propulsion2 × propeller shafts
Speed
  • 13 knots (24 km/h; 15 mph) surfaced
  • 10 knots (19 km/h; 12 mph) submerged
Range
  • 1,600 nmi (3,000 km) at 10 kn (19 km/h; 12 mph) surfaced
  • 130 nmi (240 km) at 2 kn (3.7 km/h; 2.3 mph) submerged
Complement22
Armament

Design

Like all pre-H11 British H-class submarines, H1 had a displacement of 364 long tons (370 t) at the surface and 434 long tons (441 t) while submerged.[2] It had a total length of 150 feet 3 inches (45.8 m), a beam of 15 feet 4 inches (4.7 m), and a draught of 12 feet (3.7 m).[3] 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.[3] 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).[4]

The submarine had a maximum surface speed of 13 knots (24 km/h; 15 mph) and a submerged speed of 11 knots (20 km/h; 13 mph). British H-class submarines had ranges of 1,600 nautical miles (2,963 km; 1,841 mi).[2] H1 was fitted with a 6-pounder (2.7 kg) Hotchkiss quick-firing gun and four 18-inch (457 mm) torpedo tubes. Its torpedo tubes were fitted to the bow and the submarine was loaded with eight 18-inch (457 mm) torpedoes.[2] It is a Holland 602 type submarine but was designed to meet Royal Navy specifications. Its complement was twenty-two crew members.[2]

Citations
  1. Britain 6-pdr / 8cwt [2.244"/40 (57 mm)] QF Marks I and II
  2. "H-class". Battleships-Cruisers, Cranston Fine Arts. Retrieved 20 August 2015.
  3. Colledge, J. J.; Warlow, Ben (2006) [1969]. Ships of the Royal Navy: The Complete Record of all Fighting Ships of the Royal Navy (Rev. ed.). London: Chatham Publishing. ISBN 978-1-86176-281-8. Retrieved from Naval-History on 20 August 2015.
  4. J. D. Perkins (1999). "Building History and Technical Details for Canadian CC-Boats and the Original H-CLASS". Electric Boat Company Holland Patent Submarines. Retrieved 20 August 2015.

References
  • Hutchinson, Robert (2001). Jane's submarines : war beneath the waves from 1776 to the present day. London: HarperCollins. ISBN 9780007105588.
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