HMS Inflexible was a 64-gun third rate ship of the line

Ship of the line

A ship of the line was a type of naval warship constructed from the 17th through the mid-19th century to take part in the naval tactic known as the line of battle, in which two columns of opposing warships would manoeuvre to bring the greatest weight of broadside guns to bear...

 of the Royal Navy

Royal Navy

The Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...

, launched on 7 March 1780 at Harwich

Harwich

Harwich is a town in Essex, England and one of the Haven ports, located on the coast with the North Sea to the east. It is in the Tendring district. Nearby places include Felixstowe to the northeast, Ipswich to the northwest, Colchester to the southwest and Clacton-on-Sea to the south...

.

In 1783, she fought in the Battle of Cuddalore

Battle of Cuddalore (1783)

The Battle of Cuddalore was a battle between a British fleet under Admiral Sir Edward Hughes and a slightly smaller French fleet under the Bailli de Suffren off the coast of India near Cuddalore during the American Revolutionary War, which in 1780 had sparked the Second Mysore War in India...

, and in 1807 was present at the Battle of Copenhagen joining on 7 August off Helsingor (Captain Joshua Rowley Watson).

Inflexible became a storeship in 1793, and was eventually broken up in 1820.