The Eurocopter HH-65 Dolphin is a twin-engined, single main rotor, MEDEVAC-capable Search and Rescue helicopter operated by the United States Coast Guard. It is a variant of the French-built Eurocopter AS 365 Dauphin.
The HH-65C is the updated version of the HH-65.The engines were exchanged for the new 934 shp Arriel 2C2-CG engines that provide 40% more power, plus an upgraded tail gearbox, long-nose avionics compartment, increased 9,480 lb MTOW, expanded lateral flight envelope and Vehicle and Engine Multifunction Display (VEMD) with First Limit Indicator (FLI). First retrofit completed in October 2004.