a gunnery target by shells from on 17 May 1912. In July 2016 the wreck of A3 was officially designated as a protected site. Notes References External links MaritimeQuest HMS A3 Pages 'Submarine losses 1904 to present day' - Royal Navy Submarine Museum "HMS A3" National Heritage List for England A-class submarines (1903) British submarine accidents Ships built in Barrow-in-Furness 1903 ships Royal Navy ship names Maritime incidents in 1912 Submarines sunk in collisions Warships lost with all hands Ships sunk as targets Lost submarines of the United Kingdom Shipwrecks in the English Channel Wreck diving sites in the United Kingdom