HMS Impregnable (1786)

HMS Impregnable was a Royal Navy 98-gun second rate. This ship of the line was launched on 15 April 1786 at Deptford Dockyard. She was wrecked in 1799 off Spithead.

Service
In 1794, Impregnable served as Rear-Admiral Benjamin Caldwell's flagship at the Glorious First of June.

Fate
She was lost off Chichester on 18 October 1799. She had escorted a convoy of 12 merchantmen from Lisbon to the Isle of Wight and her master, Michael Jenkins, was anxious to get into Spithead that night. The result was that she ended up on the Chichester Shoals. She anchored overnight and cut away her masts. At dawn her crew discovered that she had beaten a mile and a half over the shoals and lay near the entrance to Langstone Harbour. The following day she was found to have bilged. After she was stripped of her guns and anything else that could be retrieved, the Admiralty sold Impregnable's remains to a Portsmouth merchant, A. Lindenegren. The court martial on 30 October dismissed Master Jenkins from the service.