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2. Rolls-Royce WR-21 - Wikipedia

   en.wikipedia.org/wiki/Rolls-Royce_WR-21

   The turbine itself was designed primarily by Rolls-Royce with significant marine engineering and test facility input from DCN, with Northrop Grumman responsible for the intercooler, the recuperator and system integration. [1] [2] WR-21 development draws heavily on the technology of the successful Rolls-Royce RB211 and Trent families of gas ...

3. Rolls-Royce Marine Spey - Wikipedia

   en.wikipedia.org/wiki/Rolls-Royce_Marine_Spey

   The Rolls-Royce Marine Spey is a marine gas turbine based on the Rolls-Royce Spey and TF41 aircraft turbofan engines. [1] The Marine Spey currently powers seven ship classes including the Royal Navy's Type 23 frigates and provides a power output of 19.5 MW (about 26,150HP). The Marine Spey incorporates technology from the Tay and RB211.

4. Marine propulsion - Wikipedia

   en.wikipedia.org/wiki/Marine_propulsion

   A pump-jet, hydrojet, water jet, or jet drive uses a ducted propeller (axial-flow pump), centrifugal pump, or mixed flow pump to create a jet of water for propulsion. These incorporate an intake for source water and a nozzle to direct its flow out, generating momentum, and in most cases, employing thrust vectoring to steer the craft.

5. Rolls-Royce Marine Olympus - Wikipedia

   en.wikipedia.org/wiki/Rolls-Royce_Marine_Olympus

   Data from Rolls-Royce Heritage Trust General characteristics Type: Gas generator Length: Diameter: Dry weight: Components Compressor: 5-stage LP, 7-stage HP Combustors: 8 chamber, cannular Turbine: Single-stage LP and HP Performance Maximum power output: 28,500 shp (21.4 MW) Specific fuel consumption: 0.47 lb/hp/hr (0.287 kg/KWh) See also Related development Rolls-Royce Olympus References ^ a ...

6. Combined gas and steam - Wikipedia

   en.wikipedia.org/wiki/Combined_gas_and_steam

   If the turbines do not drive a propeller shaft directly and instead a turbo-electric transmission is used, the system is known as COGES (combined gas turbine-electric and steam). COGAS differs from many other combined marine propulsion systems in that it is not intended to operate on one system alone.

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8. Combined gas or gas - Wikipedia

   en.wikipedia.org/wiki/Combined_gas_or_gas

   The operation of large gas turbines on ships produces a high volume of very hot exhaust gasses, which can hinder onboard helicopter operations, and also greatly increases a ship's infrared signature making it more conspicuous to enemy sensors and guided weapons. The ducting and filters required take up a considerable amount of space in a ship ...

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