HH-65 Coast Guard helicopter model. The Eurocopter MH-65 Dolphin is a twin-engined helicopter operated by the United States Coast Guard for medevac-capable search and rescue and armed Airborne Use of Force missions. It is a variant of the French-built Eurocopter AS365 Dauphin.The United States Coast Guard has added 96 short range HH-65A helicopters to its fleet to replace the HH-52A Sikorsky Sea Guard. The twin-engine Dolphins operate up to 150 miles off shore and will fly comfortably at 120 knots for three hours. The HH-65A is not able to perform water landings. Though normally stationed ashore, the HH-65A can land and take-off from 210-foot WMEC, 270-foot WMEC, and 378-foot WHEC Coast Guard Cutters. These cutters are capable of refueling and supporting the helicopter for the duration of a cutter patrol.