The Oliver Hazard Perry class is a class of guided-missile frigates named after the U.S. Commodore Oliver Hazard Perry, the hero of the naval Battle of Lake Erie. Also known as the Perry or FFG-7 class, the warships were designed in the United States in the mid-1970s as general-purpose escort vessels inexpensive enough to be bought in large numbers to replace World War II-era destroyers and complement 1960s-era Knox-class frigates. In Admiral Elmo Zumwalt's "high low fleet plan", the FFG-7s were the low capability ships with the Spruance-class destroyers serving as the high capability ships. Intended to protect amphibious landing forces, supply and replenishment groups, and merchant convoys from aircraft and submarines. They were also later part of battleship-centred surface action groups and aircraft carrier battle groups/strike groups. Fifty-five ships were built in the United States: 51 for the United States Navy and four for the Royal Australian Navy (RAN). In addition, eight were built in Taiwan, six in Spain, and two in Australia for their navies. Former U.S. Navy warships of this class have been sold or donated to the navies of Bahrain, Egypt, Poland, Pakistan, Taiwan, and Turkey.
A corvette is a small warship. It is traditionally the smallest class of vessel considered to be a proper warship. The warship class above the corvette is that of the frigate, while the class below was historically that of the sloop-of-war. The modern types of ships below a corvette are coastal patrol craft, missile boat and fast attack craft. In modern terms, a corvette is typically between 500 tons and 2,000 tons, although recent designs may approach 3,000 tons, which might instead be considered a small frigate.
HMS Ark Royal was a light aircraft carrier and former flagship of the Royal Navy. She was the third and final vessel of Invincible class. She was built by Swan Hunter on the River Tyne and launched by them in 1981. Ark Royal was christened by Queen Elizabeth The Queen Mother. She followed sister ships HMS Invincible and HMS Illustrious into service in 1985.
HMAS Newcastle, named for the city of Newcastle, New South Wales, the largest provincial city in Australia, was an Adelaide-class guided-missile frigate. The last ship of the class to be constructed, Newcastle entered service with the Royal Australian Navy in 1993. During her career, the frigate has operated as part of the INTERFET peacekeeping taskforce, served in the Persian Gulf, and responded to the 2006 Fijian coup d'état. The frigate was decommissioned on 30 June 2019 and transferred to the Chilean Navy on 15 April 2020 and renamed as Capitán Prat.
HMAS Inverell, named for the town of Inverell, New South Wales, was one of 60 Bathurst-class corvettes constructed during World War II, and one of 36 initially manned and commissioned solely by the Royal Australian Navy (RAN).
HMS Vengeance (R71) was a Colossus-class light aircraft carrier built for the Royal Navy during World War II. The carrier served in three navies during her career: the Royal Navy, the Royal Australian Navy, and the Brazilian Navy.
HMAS Snipe (M1102) was a Ton-class minesweeper which served in the Royal Navy (RN) and Royal Australian Navy (RAN).
HMAS Melbourne was an Adelaide-class guided-missile frigate of the Royal Australian Navy, which entered service in 1992. Melbourne has been deployed to the Persian Gulf on several occasions, and served as part of the INTERFET peacekeeping taskforce in 2000. On 26 October 2019, Melbourne was decommissioned from the RAN, subsequently being transferred to Chile. The ship was commissioned into the Chilean Navy as Almirante Latorre on 15 April 2020.
HMAS Kanimbla was a Kanimbla-class landing platform amphibious ship operated by the Royal Australian Navy (RAN). Originally built for the United States Navy (USN) as the Newport-class tank landing shipUSS Saginaw (LST-1188), the ship was decommissioned in 1994 and sold to the RAN.
The Balikpapan class is a ship class of eight heavy landing craft. All eight were originally laid down by Walkers Limited for the Australian Army in the early 1970s. A reorganisation of watercraft responsibilities in the Australian military meant the landing craft were to be operated by the Royal Australian Navy (RAN), with seven commissioned directly into RAN service during 1973 and 1974, and lead ship Balikpapan transferred from the army to the navy. During the leadup to the independence of Papua New Guinea in 1975, two of the vessels were transferred to the new Papua New Guinea Defence Force (PNGDF).
The Ton class were coastal minesweepers built in the 1950s for the Royal Navy, but also used by other navies such as the South African Navy and the Royal Australian Navy. They were intended to meet the threat of seabed mines laid in shallow coastal waters, rivers, ports and harbours, a task for which the existing ocean-going minesweepers of the Algerine-class were not suited.
The Kanimbla class was a class of amphibious transport ships operated by the Royal Australian Navy (RAN). Two ships were purchased by Australia in 1994 and modified. Problems during the handover process and the need to repair previously unidentified defects meant the ships did not enter operational service until the end of the decade.
The Adelaide class was a ship class of six guided missile frigates constructed in Australia and the United States of America for service in the Royal Australian Navy. The class was based on the United States Navy's Oliver Hazard Perry-class frigates, but modified for Australian requirements. The first four vessels were built in the United States, with the final two being constructed in Australia.
HMAS Kookaburra (A331) was a Net-class boom defence vessel of the Royal Australian Navy (RAN), which served during World War II.
HMAS Sirius was a commercial tanker purchased by the Royal Australian Navy and converted into a fleet replenishment vessel to replace HMAS Westralia. She was named in honour of HMS Sirius of the First Fleet. Launched in South Korea on 2004, and converted in Western Australia, Sirius was commissioned in 2006; three years before a purpose-built vessel would have been built, and at half the cost. The tanker was decommissioned in 2021.
HMAS Wagga (J315), named after the city of Wagga Wagga, New South Wales was one of 60 Bathurst-class corvettes constructed during World War II, and one of 36 initially manned and commissioned solely by the Royal Australian Navy (RAN). During the war, the ship operated primarily in New Guinea waters. After war service, the corvette was placed in reserve, but she was recommissioned in 1951 as a training vessel, and was repeatedly moved into and out of reserve. Wagga was decommissioned in 1960, making her the last of the Australian-operated corvettes.
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.
Royal Navy 
United States Navy 
Hellenic Navy