and commissioned in 11 days. Specification The basic LM2500 has a single shaft gas generator derived from the CF6, comprising a 16 stage compressor driven by a two stage air-cooled HP turbine. The combustion chamber is annular. Shaft power is generated by a 6-stage power turbine mounted in the gas generator exhaust stream Additional power is obtained from the LM2500+ by the addition of a zero stage to the compressor, making 17 stages in all. Specifications for three models of LM2500 series gas turbine engines: See also References External links Official GE Aviation page for LM2500 (GEAE). Official GE Aviation page for LM2500+. Official GE Aviation page for LM2500+G4. FAS information page on US Navy LM2500 usage SA Navy Valour class frigate page Power Generation plants Simple and combined cycle 50 Hz Simple and combined cycle 60 Hz Aero-derivative engines Gas turbines Marine engines