The French ship Infatigable was launched in 1798 at Nantes.

She became a privateer that the British Royal Navy captured in 1799 and named HMS Dispatch.

[2] On 6 March 1799 HMS Ethalion captured the 18-gun privateer Infatigable in the Channel after a 10-hour chase.

Infatigable was armed with 18 guns and had a crew of 120 men.

[1] The "Principal officers and commissioners of His Majesty's Navy" offered Dispatch for sale on 24 August 1801.