The Pratt & Whitney F135 engine powering the F-35 Lightning II ran up in full-afterburner mode—all 40,000 pounds of thrust—on Sept. 18 during the end of the first series of engine runs at the Lockheed Martin production facility in Fort Worth, Tex. P&W officials say the F135’s 40,000-pound thrust is “the most ever from a jet-fighter engine.” The engine has been through thousands of hours on test stands, but officials said this was the first series of tests on the aircraft and puts the program on the “final stretch leading to first flight” later this year.
The crash of a T-38 trainer jet this May—which caused a weekslong pause in flights across the fleet—was caused by an improperly installed pin for one of the jet’s horizontal stabilizers, according to a new accident report released Oct. 30. When the pin disengaged midflight, it created the slightest amount…