1971-02-01

A Second Generation High Power Marine Gas Turbine 710204

This paper discusses the components and systems incorporated in the design of the LM2500 marine gas turbine. The discussion describes the novel and high performance features of this second generation marine gas turbine which include a high pressure ratio compressor, high temperature gas generator turbine, gas generator turbine cooling system, and high performance power turbine. The paper describes the materials used and the features incorporated which enable the LM2500 to operate successfully in a marine environment.The LM2500 marine gas turbine derived from the General Electric TF39/CF6 turbofan engine family incorporates many engineering advances which are not available in the first generation marine gas turbines. These advanced features enable the LM2500 marine gas turbine to achieve performance levels unmatched by any first generation marine gas turbines now in service. Because of its lower air flow, smaller size, and integrated components and systems, the LM2500 marine gas turbine offer the Ship Designer and Naval Architect excellent installation characteristics and improved reliability and maintenance characteristics.

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