U.S. Navy Orders 16 Additional DFC Kits
GE Marine announced that the United States Navy has ordered an additional 16 Digital Fuel Control (DFC) kits for LM2500 marine aeroderivative gas turbines. The 16 LM2500s, which will be retrofitted, power the U.S. Navy’s CG-47 Ticonderoga-class cruisers and DDG-51 Arleigh Burke-class destroyers, as well as the T-AOE-8 fast combat ship.
The DFC kits are a technology now standard on new LM2500 and LM2500+ engines, with the previous-generation LM2500s using a hydro-mechanical control system, according to GE Marine. The LM2500s already retrofitted on select DDG-51 and CG-47 class ships have accumulated nearly 200 000 DFC operating hours. The kits are installed as part of a U.S. Navy’s ship system modernization program.
The first LM2500 equipped with the DFC technology was installed by the U.S. Navy in 1994 aboard the Watson class large, medium-speed, roll-on/roll-off ships. The DFC technology also has been delivered to international navies for LM2500 gas turbines applications, as well as on a variety of commercial projects where GE gas turbines are used to power cruise ships and fast ferries.
Primary DFC retrofit kit components include a fuel metering valve and two VSV actuators, both with redundant electronic feedback. An upgraded engine controller and shipboard wiring changes are also required to incorporate the DFC kit, GE Marine said.
For more information: www.geaviation.com/engines/marine