LM2500

The LM2500 is a marine gas turbine produced by General Electric (GE) for propulsion and power generation on ships. Introduced in the 1980s, it has become one of the most widely used marine turbines, powering a range of naval and civilian vessels around the world. The engine draws on GE’s aerospace-derived technology and is designed to provide a compact, high-power solution suitable for propulsion shafts and auxiliary power generation.

In terms of performance and configuration, the LM2500 delivers approximately 25,000 shaft horsepower (about 18.6 megawatts). It is commonly installed in propulsion plants with a reduction gear to drive a ship’s propeller, or used as a generator in gas turbine–based power systems. The LM2500 family has been expanded with variants such as the LM2500+, and LM2500+G4 and LM2500+G5, which offer higher output, improved efficiency, and lower emissions through ongoing design refinements and component upgrades.

Applications and service: The LM2500 has seen widespread deployment on surface combatants, amphibious ships, and other naval and commercial vessels. Its modular design allows for straightforward maintenance and rapid replacement of hot sections, contributing to high availability in demanding maritime environments. Over time, modernization programs have introduced upgraded controls, efficiency improvements, and emissions-reduction measures to extend service life and meet evolving regulatory requirements.

Overall, the LM2500 remains a cornerstone of GE’s marine gas turbine offerings, valued for its power density, versatility, and broad operational footprint.