Helicopter Sikorsky CH-3C Serial 61-521 Register 63-9689 used by US Air Force USAF. Built 1964. Aircraft history and location Aircraft History 63-9689 US Air Force 1964-08-07Sikorsky S-61R, c/n 61-521, ff? del USAF as CH-3C 63-9689, 07Aug64 unit xferas unk conv CH-3E unk xfer USAAVNDTA, Ft. Rucker, AL unk status unk. 1969-01-19 Sikorsky CH-3E 21st SOS w/o 19jan69 in Thailand 21st SOS Send Updates Use APP to upload photo @ (optional) When Now? / / Send
