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LM2500+G4
Engine
GE Aerospace

Most power and efficient

The LM2500+G4 engine is the fourth generation of the industry-leading LM2500

It has all the same high reliability, availability and the same high efficiency (lower SFC) but with more power (a 41 percent increase) than the base LM2500.

It is the most powerful and efficient member of the LM2500 family.

Photo courtesy of the Italian Navy
    GE Aerospace
    The LM2500+G4 system's modular design provides for easy and timely repair and refurbishment, with features like:
    • A split compressor casing
    • In-place blade and vane replacement
    • In-place hot section maintenance
    • External fuel nozzles
    The LM2500+G4 is ideal for the Italian, French and Moroccan FREMM frigates and other military ships. It is also available as a generator set.

    The LM2500+G4 gas turbine provides 47,370-shp, and is the most powerful and efficient member of the LM2500 family.

    Technical

    Output
    47,370 shp (35,320 kW)
    SFC
    .352 lb/shp-hr (214 g/kW-hr)
    Heat rate
    6,469 Btu/shp-hr
    8,675 Btu/kWs-hr
    9,150 kJ/kWs-hr
    Exhaust gas flow
    205 lb/sec (93 kg/sec)
    Exhaust gas temperature
    1,020°F (549°C)
    Power turbine speed
    3600 rpm
    Average performance, 60 Hertz, 59°F, sea level, 60% relative humidity, no inlet/exhaust losses.
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    Resources

    Download Data Sheet
    FREMM-GE Case History
    PPA-GE Case History
    Experience List
    GE Marine Gas Turbines for Frigates
    Split Case Design for Gas Turbine Repair