Helicopter Sikorsky CH-3C Serial 61-557 Register 65-12782 used by US Air Force USAF. Aircraft history and location Aircraft History 65-12782 US Air Force 1968-10-05 Sikorsky HH-3E Jolly Green Giant USAF conv HH-3E 37th ARRS w/o 05oct68 Laos 37th ARRS Send Updates Use APP to upload photo @ (optional) When Now? / / Send