[1] Invincible was built during a period of peace to replace ships worn out in the recently concluded Seven Years' War.

[citation needed] She survived the cull of the Navy during the next period of peace, and was present, under the command of Thomas Pakenham, at the Glorious First of June in 1794, where she was badly damaged and lost fourteen men, and, under the command of William Cayley, the Invasion of Trinidad (1797), which resulted in the transfer of Trinidad from the Spanish.

As the ship passed the Norfolk coast, she was caught in heavy wind and stuck on the Hammond Knoll Rock off Happisburgh, where she was pinned for some hours in the afternoon before breaking free but immediately being grounded on a sandbank, where the effect of wind and waves tore down the masts and began to break up the ship.

[5] The compulsory court martial investigating the incident, held on Ruby in Sheerness, absolved the admiral and the captain (posthumously) of culpability in the disaster, posthumously blaming the harbour pilot and the ship's master, both of whom had been engaged to steer the ship through the reefs and shoals of the dangerous region, and should have known the location of Hammond Knoll, especially since it was daytime and in sight of land.

[6] The remains of many of her crew were located by chance in a mass grave in Happisburgh churchyard during the digging of a new drainage channel.