Promoted to post-captain on 1 January 1783, Troubridge was given command of the frigate Active and was present at the Siege of Cuddalore in June 1783.[3] After that he transferred to the third-rateDefence.[3] In 1785 Troubridge returned to England in Sultan as flag-captain to Admiral Sir Edward Hughes.[3] He was appointed to the frigate HMS Thames in 1790.[3]
In July 1797 he assisted Nelson in the unsuccessful attack on Santa Cruz de Tenerife.[3] In August 1798, when getting into position for the attack on the French fleet, Culloden ran aground on a shoal near the entrance to Aboukir Bay and was consequently unable to take any part in the Battle of the Nile. At Nelson's request, however, he was awarded the gold medal commemorating the victory.[4]
On his arrival the area of command was changed to that of the Cape Station. He left Madras in January 1807 for the Cape of Good Hope. Off the coast of Madagascar, Blenheim, an old and damaged ship, foundered in a cyclone and the admiral and all others on board perished.[4]
Arms
Coat of arms of Sir Thomas Troubridge, 1st Baronet
Crest
A dexter arm embowed habited Azure holding a flagstaff thereon a flag azure charged with two keys in saltire Or.
Escutcheon
Or on a bridge embattled of three arches through which water is flowing towards the base Proper a tower of the second thereon hoisted a broad pennant flying towards the sinister on a canton Azure two keys in saltire the wards upwards Or.