General Electric/Rolls-Royce F136
…The General Electric/Rolls-Royce F136 was an afterburning turbofan engine being developed by General Electric, Allison Engine Company, and Rolls-Royce (Allison was subsequently acquired by Rolls-Royce) as an alternative powerplant to the Pratt & Whitney F135 for the Lockheed Martin F-35 Lightning II…