Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-928 Register 145775 used by US Marine Corps USMC. Aircraft history and location Aircraft History 145775 US Marine Corps Sikorsky HUS-1, cn 58-928, ff:? del USMC as HUS-1, 145775, unk Send Updates Use APP to upload photo @ (optional) When Now? / / Send