A gas turbine, also called a combustion turbine, is a type of continuous flow internal combustion engine. The main parts common to all gas turbine engines form the power-producing part and are, in the direction of flow:
The Bristol Proteus was the Bristol Engine Company's first mass-produced gas turbine engine design, a turboprop that delivered just over 4,000 hp (3,000 kW). The Proteus was a reverse-flow gas turbine. Because the second turbine drove no compressor stages, but only the propeller, this engine was classified as a free-turbine. It powered the Bristol Britannia airliner, small naval patrol craft, hovercraft and electrical generating sets. It was also used to power a land-speed record car, the Bluebird-Proteus CN7. After the merger of Bristol with Armstrong Siddeley the engine became the Bristol Siddeley Proteus, and later the Rolls-Royce Proteus. The Proteus was to have been superseded by the Bristol Orion which would have given a Britannia a 75% increase in power for cruising faster.
The Type 22 frigate also known as the Broadsword class was a class of frigates built for the British Royal Navy. Fourteen were built in total, with production divided into three batches.
HMS Battleaxe was a Type 22 frigate of the British Royal Navy. She was sold to the Brazilian Navy on 30 April 1997 and renamed Rademaker.
HMS Amazon was the first Type 21 frigate of the Royal Navy. Her keel was laid down at the Vosper Thornycroft shipyard in Southampton, England. The ship suffered a fire in the Far East in 1977, drawing attention to the risk of building warships with aluminium superstructure.
The Type 14 Blackwood class were a ship class of minimal "second-rate" anti-submarine warfare frigates. Built for the Royal Navy during the 1950s at a time of increasing threat from the Soviet Union's submarine fleet, they served until the late 1970s. Twelve ships of this class served with the Royal Navy and a further three were built for the Indian Navy.
HMS Gurkha (F122) was a Tribal-class frigate of the Royal Navy. She was named after an ethnic group located in Nepal, and who continue to serve in the British Army. She was sold to the Indonesian Navy in 1984 and renamed KRI Wilhelmus Zakarias Yohannes (332).
HMS Mohawk was a Tribal-class frigate of the Royal Navy in service from 1963. She was named after a tribe of Native Americans located in southeast Canada and New York State. Mohawk was scrapped in 1983.
Combined diesel and gas(CODAG) is a type of propulsion system for ships that need a maximum speed that is considerably faster than their cruise speed, particularly warships like modern frigates or corvettes.
The General Electric LM2500 is an industrial and marine gas turbine produced by GE Aviation. The LM2500 is a derivative of the General Electric CF6 aircraft engine.
Combined diesel or gas(CODOG) is a type of propulsion system for ships that need a maximum speed that is considerably faster than their cruise speed, particularly warships like modern frigates or corvettes.
Combined gas turbine and gas turbine (COGAG) is a type of propulsion system for ships using two gas turbines connected to a single propeller shaft. A gearbox and clutches allow either of the turbines to drive the shaft or both of them combined. Marine usage of COGAG systems are similar to those found ashore.
Combined gas or gas (COGOG) is a propulsion system for ships using gas turbine engines. A high efficiency, low output turbine is used for cruising speeds with a high output turbine being used for high-speed operations. A clutch allows either turbine to be selected, but there is no gearbox to allow operation of both turbines at once. This has the advantage of not requiring heavy, expensive and potentially unreliable gearboxes. The reason that a smaller turbine is used for cruising is that a small turbine running at 100% power is more fuel efficient than a bigger turbine running at 50% power.
Combined diesel-electric and gas (CODLAG) is a modification of the combined diesel and gas propulsion system for ships. A variant, called the combined diesel-electric or gas (CODLOG) system, contains the same basic elements but will not allow simultaneous use of the alternative drive sources.
The Hatsuyuki-class destroyer is a class of destroyer, serving with the Japan Maritime Self-Defense Force (JMSDF). It was the first class of first generation of general-purpose destroyers of the JMSDF.
HMS Pellew (F62) was one of a dozen Blackwood-class frigate of second-rate anti-submarine frigates built for the Royal Navy in the 1950s. She was named for Israel Pellew, who served during the French Revolutionary and Napoleonic Wars. He was brother to Edward Pellew, 1st Viscount Exmouth
Rear-Admiral James Flower, CB was a senior marine engineer with the Royal Navy and was later involved in restoration of the propulsion machinery of Isambard Kingdom Brunel's steamship the SS Great Britain.
HMS Leonidas was a Laforey-class destroyer of the Royal Navy. She was launched on 30 October 1913. She served in World War I with the 3rd Destroyer Flotilla and as a convoy escort and was broken up in 1922. The ship was originally named Rob Roy but the name was changed after a new naming scheme was introduced to give all ships of the same class names beginning with the same letter. Overall cost of the ship was £100,000
The Rolls-Royce Marine Olympus is a marine gas turbine based on the Rolls-Royce Olympus aircraft turbojet engine.
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