Pratt & Whitney officials say the company’s F135 Joint Strike Fighter engine has been cleared to power the F-35 Lightning II on its first flight. The F135 has achieved initial flight release from the F-35 joint program office after completing all tests and verification reports, according to an Oct. 23 company statement. The engine will power the F-35 conventional take-off and landing version. The F135 has amassed more than 6,000 hours in ground engine runs and completed full afterburner tests. Taxi tests are slated for later this fall.
An April 16 explosion destroyed a building at Northrop Grumman’s Innovation Systems plant in Promontory, Utah, where the company makes solid rocket motors for the U.S. government and commercial rocket companies.