Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-963 Register 145785 used by US Marine Corps USMC. Aircraft history and location Aircraft History 145785 US Marine Corps 1962-10Sikorsky HUS-1, cn 58-963, ff:? del USMC as HUS-1, 145785, unk redesig UH-34D, Oct62 w/o Da Nang, 01May68. Send Updates Use APP to upload photo @ (optional) When Now? / / Send