Helicopter Sikorsky YCH-53A Serial 65-001 Register 151613 used by US Marine Corps USMC. Built 1964. Aircraft history and location Aircraft History 151613 US Marine Corps 1964-10-14Sikorsky S-65 prototype, c/n 65-001 del USMC as YCH-53A 151613 27May64: ff: 14Oct64 asgd NPRO RDT&E Stratford, CT, 28Aug64 admin SOC 25Jul67 with 0 hrs. Send Updates Use APP to upload photo @ (optional) When Now? / / Send