Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-861 Register 145755 used by US Marine Corps USMC. Aircraft history and location Aircraft History 145755 US Marine Corps Sikorsky HUS-1, cn 58-861, ff:? del USMC as HUS-1, 145755, unk 1962-02-27w/o 27feb62 Send Updates Use APP to upload photo @ (optional) When Now? / / Send