Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-1591 Register 150230 used by US Marine Corps USMC. Aircraft history and location Aircraft History 150230 US Marine Corps 1968-06-08Sikorsky UH-34D, cn 58-1591, ff:? del USMC as UH-34D, 150230, unk w/o 08Jun68. Send Updates Use APP to upload photo @ (optional) When Now? / / Send