BELL AH-1J “SEA COBRA” A-ATTACK H-HELICOPTER -1 FIRST MODEL J-10TH MODIFICATION After borrowing 38 single engine AH-1Gs from the Army during the Vietnam War the USMC ordered  attack helicopters of their own.   The combat experience learned during this period lead to the development of an AH-1J “Sea Cobra.”  The first AH-1Js had a single engine and a rotor brake system to operate on ships.  Later  models came equipped with two engines.  HMA-269 was the first to receive the Sea Cobra in April 1971. The AH-1J served in Desert Shield and Desert Storm with Attack Helicopter Squadrons HMA-773 and HMA-775. SPECIFICATIONS AH-1J ROTOR DIAMETER   44’ STUB WING SPAN  10’ 4” LENGTH   53’ 4” HEIGHT   18’ 8” EMPTY WEIGHT  7261  LBS GROSS WEIGHT  9972  LBS ENGINE   2 x PRATT & WHITNEY T-400 POWER    1250 SHAFT HORSE POWER MAX SPEED   170 MPH CRUISE     120 MPH HOVER CEILING  12,450’ RANGE    359 MILES ARMAMENT   1 x M197 20mm CANNON (3 BARRELS) 2,200  LBS  OF ORDANCE  (ROCKETS/MISSILES)