The U.S. Department of Defense announced a $49.2 million contract to Pratt and Whitney (P&W) to manufacture engines for F-35 Lightning II Block 4 fighter aircraft.
This contract provides for one conventional take-off and landing and two short take-off/vertical landing F135 engines to support F-35 Lightning II Block Four developmental testing program, a U.S. DoD release said.
The U.S. Marine Corps’ F-35Bs and the Navy’s catapult-launched F-35Cs will receive incremental Block 4 upgrades (Block 4.1, 4.2, and onwards) in the coming months. The Block 4 upgrades will include faster computers, more missiles, panoramic cockpit display, longer ranges, and AI-flown wingmen (such as the XQ-58A “Valkyrie.” Read More…