Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-930 Register 145776 used by US Marine Corps USMC. Aircraft history and location Aircraft History 145776 US Marine Corps Sikorsky HUS-1, cn 58-930, ff:? del USMC as HUS-1, 145776, unk preserved at USMC Amphibious Museum. Send Updates Use APP to upload photo @ (optional) When Now? / / Send