Sunday, 25 March 2018

GE to supply LM2500 marine gas turbines for US Navy DDG 51-class destroyers

USS Rafael Peralta (DDG 115)

The US Navy has selected GE Marine Solutions to deliver its LM2500 marine gas turbines that would power the new Arleigh Burke-class destroyers, the future USS Louis H. Wilson Jr. (DDG 126) and the future USS Gallagher (DDG 127).

The two US Navy vessels are being constructed by General Dynamics Bath Iron Works in Bath, Maine.

The engineering team from GE are collaborating with Bath Iron Works on the LM2500 module upgrade programme.

GE Marine Operations vice-president Brien Bolsinger said: “Each of these sophisticated new surface combatants relies on four powerful GE LM2500 marine gas turbines in a combined gas and gas (COGAG) turbine propulsion arrangement.

“The US Navy is the largest customer of GE marine gas turbines that are proudly manufactured right here in Ohio.”

“We are honoured that this reliable gas turbine assists with our country’s national security. The US Navy is the largest customer of GE marine gas turbines that are proudly manufactured right here in Ohio.”

The LM2500 is claimed to be the most reliable gas turbine in the market with more than 15 million hours in marine applications, in addition to more than 70 million hours in industrial applications.

The gas turbines are used for the US Navy vessels and the ships of 34 other navies worldwide.

GE has so far provided the US Navy with more than 750 gas turbines that would help power frigates, destroyers, cruisers and amphibious vessels.

The company has nine depot service centres worldwide to offer full overhaul capability for the LM2500 marine gas turbines.

General Dynamics is currently constructing four DDG 51 destroyers, Thomas Hudner (DDG 116), Daniel Inouye (DDG 118), Carl M. Levin (DDG 120) and John Basilone (DDG 122), at Bath Iron Works.

Original post:

DDG 51 is an all-steel construction and features four separate variants so-called Flights. The ships from DDG 51 to 71 represent the original design and are designated as Flight I ships, DDGs 72 to 78 are Flight II ships, while DDGs 79 to 122 employ the Flight IIA design. The last Flight IIA ship, DDG 122, the future USS Lenah H. Sutcliffe Higbee is currently under construction. DDG 123, the first Flight III ship, is expected to be delivered in 2021 and as many as 42 Flight III ships may be purchased.  Source:

LM2500 Engine

The LM2500 marine gas turbine is a simple-cycle, two-shaft, high-performance engine. Derived from GE's CF6-6 aircraft engines, the LM2500 consists of a gas generator, a power turbine, attached fuel and lube oil pumps, a fuel control and speed governing system, associated inlet and exhaust sections, lube and scavenge systems as well as controls and devices for starting and monitoring engine operation.

The LM2500 is GE's most widely-applied gas turbine, used by 33 navies worldwide. Possible applications for the LM2500 include patrol boats, corvettes, frigates, destroyers, cruisers, cargo/auxiliary ships and aircraft carriers. The LM2500 is also available as a military generator set.

U.S. Navy
Published on Mar 22, 2018
Ralph Johnson DDG 114 Commissioning

Arleigh Burke-Class Destroyer: Details

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