Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-1574 Register 150223 used by US Marine Corps USMC. Aircraft history and location Aircraft History 150223 US Marine Corps 1970-02-25Sikorsky UH-34D, cn 58-1574, ff:? del USMC as UH-34D, 150223, unk w/o NAF Cam Ranh Bay, RVN, 25Feb70. Send Updates Use APP to upload photo @ (optional) When Now? / / Send