The escort carrier or escort aircraft carrier, also called a "jeep carrier" or "baby flattop" in the United States Navy (USN) or "Woolworth Carrier" by the Royal Navy, was a small and slow type of aircraft carrier used by the Royal Navy, the Royal Canadian Navy, the United States Navy, the Imperial Japanese Navy and Imperial Japanese Army Air Force in World War II. They were typically half the length and a third the displacement of larger fleet carriers, slower, more-lightly armed and armored, and carried fewer planes. Escort carriers were most often built upon a commercial ship hull, so they were cheaper and could be built quickly. This was their principal advantage as they could be completed in greater numbers as a stop-gap when fleet carriers were scarce. However, the lack of protection made escort carriers particularly vulnerable, and several were sunk with great loss of life. The light carrier was a similar concept to the escort carrier in most respects, but was fast enough to operate alongside fleet carriers.
HMCS Bonaventure was a Majestic-class aircraft carrier, the third and last aircraft carrier in service with Canada's navy. The aircraft carrier was initially ordered for construction by Britain's Royal Navy as HMS Powerful during the Second World War. Following the end of the war, construction on the ship was halted and it was not until 1952 that work began once again, this time to an altered design for the Royal Canadian Navy. The ship entered service in 1957 renamed Bonaventure and, until the vessel's decommissioning in 1970, was involved in major NATO fleet-at-sea patrols and naval exercises and participated in the Cuban Missile Crisis. During her career Bonaventure carried three hull identification numbers, RML 22, RRSM 22 and CVL 22. Following her decommissioning Bonaventure was sold for scrap and broken up in Taiwan.
The Invincible class was a class of light aircraft carrier operated by the Royal Navy. Three ships were constructed: HMS Invincible, HMS Illustrious and HMS Ark Royal. The vessels were built as aviation-capable anti-submarine warfare (ASW) platforms to counter the Cold War North Atlantic Soviet submarine threat, and initially embarked Sea Harrier aircraft and Sea King HAS.1 anti-submarine helicopters. With cancellation of the aircraft carriers renewal programme in the 1960s, the three ships became the replacements for Ark Royal and Eagle fleet carriers and the Centaur-class light fleet carriers, and the Royal Navy's sole class of aircraft carrier.
HMS Invincible was the Royal Navy's lead ship of her class of three light aircraft carriers. She was launched on 3 May 1977 as the seventh ship to carry the name. She was originally designated as an anti-submarine warfare carrier, but was used as an aircraft carrier during the Falklands War, when she was deployed with HMS Hermes. She took over as flagship of the British fleet when Hermes was sold to India. Invincible was also deployed in the Yugoslav Wars and the Iraq War. In 2005, she was decommissioned, and was eventually sold for scrap in February 2011.
HMCS Magnificent was a Majestic-class light aircraft carrier that served the Royal Canadian Navy from 1948–1957. Initially ordered by the Royal Navy during World War II, the Royal Canadian Navy acquired the Magnificent while waiting for another aircraft carrier to be completed to their needs and it entered service in 1948 replacing in service HMCS Warrior which had been loaned for two years by the RN.
HMS Theseus/ˈtʰeː.seu̯s/, [ˈt̪ʰeːs̠ɛu̯s̠](R64) was a Colossus-class light fleet aircraft carrier of the Royal Navy. Theseus was laid down on 6 January 1943 by Fairfield at Govan, and was launched on 6 July 1944. She was involved in the Korean War and the Suez Crisis. The scrapping of the Theseus was commenced on 29 May 1962 at Inverkeithing, Scotland.
The Centaur class aircraft carrier was the final iteration of the 1942 Design Light Fleet Carrier developed by the United Kingdom for the Royal Navy during the Second World War. They were designed in 1943 to operate higher-performance aircraft than the preceding Majestic-class aircraft carrier. Four ships were laid down in 1944-1945 and completed in 1953-1959. Rapid developments in carrier warfare and technology overtook the ships even as they were under construction, and the associated costs of modernization led to ships being completed to different specifications. Only the last ship, HMS Hermes (R12), was fitted as a modern fixed-wing carrier; she was also the last of the class to retire in 2017 as INS Viraat.
HMAS Melbourne (R21) was a Majestic-class light aircraft carrier operated by the Royal Australian Navy (RAN) from 1955 until 1982, and was the third and final conventional aircraft carrier to serve in the RAN. Melbourne was the only Commonwealth naval vessel to sink two friendly warships in peacetime collisions.
The 1942 Design Light Fleet Carrier, commonly referred to as the British Light Fleet Carrier, was a light aircraft carrier design created by the Royal Navy during the Second World War, and used by eight naval forces between 1944 and 2001. They were designed and constructed by civilian shipyards to serve as an intermediate step between the expensive, full-size fleet aircraft carriers and the less expensive but limited-capability escort carriers.
The British Pacific Fleet (BPF) was a Royal Navy formation that saw action against Japan during the Second World War. It was formed from aircraft carriers, other surface warships, submarines and supply vessels of the RN and British Commonwealth navies in November 1944.
Landing platform helicopter (LPH) is a term used by some navies to denote a type of amphibious warfare ship designed primarily to operate as a launch and recovery platform for helicopters and other VTOL aircraft. As such, they are considered a type of helicopter carrier.
HMAS Sydney (R17/A214/P214/L134) was a Majestic-class light aircraft carrier operated by the Royal Australian Navy (RAN). She was built for the Royal Navy and was launched as HMS Terrible (93) in 1944, but was not completed before the end of World War II. The carrier was sold to Australia in 1947, completed, and commissioned into the RAN as Sydney in 1948.
In the Royal Navy and other navies of Europe and the Commonwealth of Nations, ships are identified by pennant number. Historically, naval ships flew a flag that identified a flotilla or type of vessel. For example, the Royal Navy used a red burgee for torpedo boats and a pennant with an H for torpedo boat destroyers. Adding a number to the type-identifying flag uniquely identified each ship.
An anti-submarine warfare carrier is a type of small aircraft carrier whose primary role is as the nucleus of an anti-submarine warfare hunter-killer group. This type of ship came into existence during the Cold War as a development of the escort carriers used in the ASW role in the North Atlantic during World War II.
An amphibious assault ship is a type of amphibious warfare ship employed to land and support ground forces on enemy territory during an amphibious assault. The design evolved from aircraft carriers converted for use as helicopter carriers. Modern designs support amphibious landing craft, with most designs including a well deck. Like the aircraft carriers they were developed from, some amphibious assault ships also support V/STOL fixed-wing aircraft and have a secondary role as aircraft carriers.
Aircraft carriers have their origins during the days of World War I. The earliest experiments consisted of fitting temporary "flying off" platforms to the gun turrets of the warships of several nations, notably the United States and the United Kingdom. The first ship to be modified with a permanent flight deck was the battlecruiser HMS Furious, which initially had a single flying-off deck forward of the original superstructure. Subsequently, she was modified with a separate "landing on" deck aft and later with a full flush deck. Other ships, often liners, were modified to have full flush flight decks, HMS Argus being the first to have such modification begun. Those first faltering steps gave little indication of just how important the aircraft carrier was to prove to be. During the inter-war years, Japan, the United Kingdom and the United States built up significant carrier fleets so that by the beginning of World War II, they had 18 carriers between them. The 1940 Battle of Taranto and 1941 Attack on Pearl Harbor in retrospect showed the world that the aircraft carrier was to be the most important ship in the modern fleet. Today, aircraft carriers are the capital ships of the navies they serve in, and in the case of modern US "supercarriers", they embark an air group that is effectively a small air force.
Aircraft carriers are warships that evolved from balloon-carrying wooden vessels into nuclear-powered vessels carrying many dozens of fixed- and rotary-wing aircraft. Since their introduction they have allowed naval forces to project air power great distances without having to depend on local bases for staging aircraft operations.
The first involvement Australia had with naval aviation was in 1911, when an Australian-born Royal Navy officer became one of the first four naval officers to receive pilot qualifications. During World War I, the Royal Australian Navy (RAN) experienced several forms of airborne operation, with HMAS Brisbane operating a seaplane, while HMA Ships Sydney and Australia were used for experiments with aircraft launch platforms. An aircraft embarked aboard Sydney was also involved in one of the first naval air battles. Several Australians also flew as part of the Royal Naval Air Service.
