what is the top speed of the f-35
Lockheed Martin F-35 Lightning II The Pratt & Whitney F135 powers the F-35. An alternative engine, the General Electric/Rolls-Royce F136, was being developed until it was cancelled by its manufacturers in December 2011 for lack of funding from the Pentagon.[59][60] The F135 and F136 engines are not designed to supercruise.[61] However, the F-35 can briefly fly at Mach 1.2 for 150 miles without the use of an afterburner.[62] The F135 is the second (radar) stealthy afterburning jet engine. Like the Pratt & Whitney F119 from which it was derived, the F135 has suffered afterburner pressure pulsations, or 'screech' at low altitude and high speed.[63] The F-35 has a maximum speed of over Mach 1.6. With a maximum takeoff weight of 60,000 lb (27,000 kg),[a][65] the Lightning II is considerably heavier than the lightweight fighters it replaces.