The O and P class were two classs of destroyers of the Royal Navy launched in 1941 and 1942. They served as convoy escorts in World War II, and some were converted to anti-submarine frigates in the 1950s. The P class differed from the O class in that the O class had 4.7 in guns in low angle mounts, while the P class had 4 inch guns in high angle mounts. A ship class is a group of ships of a similar design. ... USS Lassen, an Arleigh Burke-class destroyer In naval terminology, a destroyer is a fast and manouverable yet long-endurance warship intended to escort larger vessels in a fleet or battle group and defend them against smaller, short-range attackers (originally torpedo boats, later submarines and aircraft). ... The Royal Navy of the United Kingdom is the senior service of the British armed services, being the oldest of its three branches. ... 1941 was a common year starting on Wednesday (link will take you to calendar). ... This article is about the year. ... A convoy is a group of vehicles or ships traveling together for mutual support. ... World War II was a truly global conflict with many facets: immense human suffering, fierce indoctrinations, and the use of new, extremely devastating weapons like the atom bomb. ... Anti-submarine warfare is a term referring to warfare directed against submarines. ...
The torpedo boat destroyer later on took over the role of the smaller torpedo boats, performing torpedo attacks on fleets, such as the devastating Japanese attack on the Russian fleet in Port Arthur at the opening of the Russo-Japanese War in 1904, and attacks in the Pacific theatre of World War II.
At the end of the war the state of the art was represented by the British V and W classdestroyer.
The destroyers (as well as frigates) are, as always, the workhorses of the fleet, the former optimised for air defence and the latter for surface and subsurface warfare.