Helicopter Sikorsky CH-3C Serial 61-564 Register 65-12789 used by US Air Force USAF. Aircraft history and location Aircraft History 65-12789 US Air Force USAF conv CH-3E to USCG 1990 AMARC 44009 2008 preserved at Russell Military Museum, IL AMARG Send Updates Use APP to upload photo @ (optional) When Now? / / Send