Helicopter Sikorsky CH-3C Serial 61-559 Register 65-12784 used by US Air Force USAF. Aircraft history and location Aircraft History 65-12784 US Air Force 1966-05-31USAF d/d 31may66 as CH-3C conv to HH-3E served in Thailand, Vietnam, Japan and the Philippines May92 preserved Air Park Hurlburt Field, Florida Send Updates Use APP to upload photo @ (optional) When Now? / / Send