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HMS A1
50.7425° N, -0.9213° E
About
HMS A1 was the Royal Navy's first British-designed submarine, and their first to suffer fatal casualties. She was the lead ship of the first British A-class submarines and the only one to have a single bow torpedo tube. She was actually sunk twice: first in 1904 when she became the first submarine casualty, with the loss of all hands; however, she was recovered, but sank again in 1911, this time when she was unmanned. The wreck was discovered in 1989 and was designated under the Protection of Wrecks Act in 1998. The wreck is a Protected Wreck managed by Historic England.
Historical Timeline
Journey through time and discover key events in this site's history
Designation area extended
5 October 2004
Launched
9 July 1902
Raised and repaired
18 April 1904
Collision and sinking
18 March 1904
Keel laid
19 February 1902
Protected Wreck designation
26 November 1998
Petrol explosion
August 1910
Lost while unmanned
1911
Wreck discovered
1989
Archaeological Features
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