The 24-pounder long gun was a heavy calibre piece of artillery mounted on warships of the Age of Sail. 24-pounders were in service in the navies of France, Spain, Great Britain, the Netherlands, Sweden, and the United States. They were comparable to the Canon de 24 Gribeauval used by the French Army as its largest piece of siege artillery. 24-pounders were used as main guns on the heaviest frigates of the early 19th century and on fourth-rate ships of the line, on the second deck of first-rate ships of the line, and on the second deck of a few large third-rates.

Pomone was a 40-gun frigate of the French Navy, launched in 1785. The British captured her off the Île de Batz in April 1794 and incorporated her into the Royal Navy. Pomone subsequently had a relatively brief but active career in the British Navy off the Atlantic and Mediterranean coasts of France before suffering sufficient damage from hitting a rock. Due to this, the ship was taken out of service and then broken up in 1803.