F135 Pratt & Whitney’s F135 engine receives funding support News Pratt & Whitney’s F135 engine receives funding support Defence August 1, 2023 Pratt & Whitney awarded $66 million for F135 engine upgrade work News Pratt & Whitney awarded $66 million for F135 engine upgrade work Defence July 12, 2023 Pratt & Whitney wins contract for 135 F135 engines News Pratt & Whitney wins contract for 135 F135 engines F135 June 5, 2018