Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-907 Register 145768 used by US Marine Corps USMC. Aircraft history and location Aircraft History 145768 US Marine Corps 1965-12-08Sikorsky HUS-1, cn 58-907, ff:? del USMC as HUS-1, 145768, unk w/o Quang Tri Province, Vietnam, 08Dec65. Send Updates Use APP to upload photo @ (optional) When Now? / / Send