HMS H11 explained

HMS H11 was a British H-class submarine built by Fore River Yard, Quincy, Massachusetts. She was laid down on an unknown date and was commissioned in 1915. H11 along with HMS H12 to HMS H20 were all built in America but were interned by the United States government until the United States entered World War I. H11 was sold on 20 October 1920 in Dover and lost on tow to the breaker's yard. The wreck was identified 2007.

Design

Like all pre-H21 British H-class submarines, H11 had a displacement of 364LT at the surface and 434LT while submerged.^[1] It had a total length of 150feet, a beam of 15feet, and a draught of 12feet. It contained a diesel engines providing a total power of and two electric motors each providing power.^[2] 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.^[3]

The submarine had a maximum surface speed of 13kn and a submerged speed of 11kn. British H-class submarines had ranges of 1600nmi at speeds of 10kn.^[1] H11 was fitted with a Hotchkiss quick-firing gun (6-pounder) and four torpedo tubes. Its torpedo tubes were fitted to the bows and the submarine was loaded with eight torpedoes.^[1] It is a Holland 602 type submarine but was designed to meet Royal Navy specifications. Its complement was twenty-two crew members.^[1]

Bibliography

• Book: Hutchinson . Robert . Jane's submarines : war beneath the waves from 1776 to the present day . 2001 . HarperCollins . London . 9780007105588.

Notes and References

1. Web site: H-class. Battleships-Cruisers, Cranston Fine Arts. 20 August 2015.
2. Retrieved from Naval-History on 20 August 2015.
3. Web site: Building History and Technical Details for Canadian CC-Boats and the Original H-CLASS. Electric Boat Company Holland Patent Submarines. J. D. Perkins. 1999. 20 August 2015.