South Korea has selected GE Aerospace to supply 12 LM2500+G4 marine gas turbines for its upcoming six-unit fleet of next-generation KDDX destroyers.
The engines, which will integrate with the destroyers’ full electric propulsion system, are set to meet the power demands of the first ship in Korean Navy history to feature stealth-integrated radar and carry anti-aircraft and land-attack missiles.
According to GE Aerospace, the configuration offers improved fuel economy, operational flexibility, power for future growth, and enhanced survivability and redundancy.
Company VP and General Manager Asha Belarski described the transition to full electric propulsion as “a step toward the next generation of naval power.”
“The selection of GE Aerospace’s LM2500+G4 technology strengthens our strong collaborations in Korea and demonstrates our commitment to local manufacturing,” she added.
LM2500+G4 Engine
The LM2500+G4 features a zero-stage high-pressure compressor blisk and other technical improvements that enable 33 percent greater airflow and higher firing temperatures while maintaining the same footprint as the base LM2500.
It also powers Italian, French, Egyptian, and Moroccan FREMM frigates, and was chosen by the US Navy for its Constellation-class (FFG-62) vessel and DDG(X) Land Based Test Site.
The American company will work with South Korean licensed manufacturers to deliver the LM2500+G4 engines, with each KDDX destroyer receiving two engines housed in GE Aerospace’s latest lightweight composite enclosure.
GE Aerospace will work with prime contractor Hanwha Aerospace on the lead ship to manufacture and assemble engine components, test the system, and provide service support locally.
Meanwhile, South Korean firm NRTEC will manufacture the lightweight composite engine enclosure in Busan.
The enclosure weighs more than 2,500 kilograms (5,512 pounds) less than its steel predecessor while retaining the same footprint as the LM2500.
It is also designed to improve crew conditions by reducing noise levels by 60 percent and lowering wall temperatures by 25 to 50 degrees Fahrenheit (14 to 28 degrees Celsius).
