In 1923 Thomson was given the command of HMS K6, the latest British submarine, which was then the largest in the world.
HMS Beagle | HMS Victory | HMS M31 | HMS Bounty | HMS M23 | HMS ''Humber'' | HMS ''Bounty'' | HMS M27 | HMS M25 | HMS Investigator | HMS M33 | HMS ''Beagle'' | HMS Plumper (1848) | HMS Endeavour | HMS ''Victory'' | HMS Royal Charles | HMS Queen Mary | HMS ''Plumper'' | HMS Britannia | HMS ''Investigator'' | HMS ''Express'' | HMS Duke of Wellington | HMS ''Britannia'' | HMS Ark Royal | Yangtse Incident: The Story of HMS Amethyst | HMS ''Winchelsea'' | HMS Volage | HMS ''Trincomalee'' | HMS Trincomalee | HMS Sultan (establishment) |