Captain class frigate

The Captain class frigates were a class of 78 frigates of the Royal Navy launched in 1942–1943. They served in World War II as convoy escorts and anti-submarine warfare vessels. The ships were built in the United States and delivered to the United Kingdom under the provisions of Lend-Lease. Originally belonging to two classes of destroyer escort, 32 from the Evarts class and 46 from the Buckley class. The Royal Navy name the ships after British captains of Napoleonic Wars.

The main design difference between the Royal Navy frigates the United States Navy destroyer escorts was that the British ships had the forward torpedo tubes removed along with the ice cream makers, the iced water fountains, the dishwashers, and laundries (in some ships). More depth charges were fitted on the upper deck each side of the ship (allowing for about 200 in total), and the steel work around the binnacle had to be replaced by non-ferrous materials. The American gyrocompasses were replaced with the Admiralty pattern ones and the MK IV elevating column Oerlikon mountings were replaced with the simpler MK V1A mountings.