The General Electric LM2500 industrial and marine turboshaftgas turbine is a derivative of GE Aircraft Engines' CF6-50 aircraft engine. The LM2500 is offered in addition to the LM6000.
It delivers 33,600 shaft horsepower (25.1 MW) with a thermal efficiency of 37 percent. It has been used in various applications such as in U.S. Navywarships (as well as those belongong to other navies), hydrofoils, hovercraft and fast ferries. As of 2004, more than one thousand LM2500 gas turbines have been in service for more than 26 international navies.
The LM2500+ is a Combined Diesel And Gas (CODAG) engine that combines electrical propulsion and a basic LM2500 engine. Queen Mary 2, the world's largest transatlantic cruise liner, uses 2 LM2500+ CODAG units.
The LM2500 is license-built in Japan as the Ishikawajima-Harima LM2500.
In early applications, the LM2500 was rated at 21,500 bhp for the U.S. Navy's DD 963 and DDG 993 class destroyers, the CG 47 class cruisers, and the FFG 7 class frigates.
The LM2500+ achieves increased power over the LM2500 primarily by increasing the compressor airflow 23%, with a minimal increase in combustor firing temperature by adding a compression stage (zero stage) to the front of the LM2500 compressor.
LM2500Gas Turbine Engine has a 16 stage axial flow compressor made up of a 16 stage Compressor rotor of moving blades driven by the high pressure turbine.
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