HMS H9

HMS H9 was a British H-class submarine built by the Canadian Vickers Co., Montreal. She was laid down on an unknown date and commissioned in June 1915. Launched by J. Grace Gardner at Montréal on 22 May 1915.
HMS H9 was sold on 30 November 1921 in Malta.

Design

She had a displacement of at the surface and while submerged. Her total length was, with a beam of and a draught of.
Her two diesel engines provided a total power of and her two electric motors provided power which gave the submarine a maximum surface speed of and a submerged speed of. She would normally carry of fuel and had a maximum capacity of and a range of. The boat was armed with a Hotchkiss quick-firing gun and four bow torpedo tubes with six torpedoes carried. The complement was twenty-two crew members.