Helicopter Sikorsky CH-3E Serial 61-588 Register 66-13289 used by US Air Force USAF. Built 1967. Aircraft history and location Aircraft History 66-13289 US Air Force 1967-08-12Sikorsky S-61R, c/n 61-588, ff? del USAF as CH-3E 66-13289, 12Aug67 Send Updates Use APP to upload photo @ (optional) When Now? / / Send