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The F-35 was the product of the Joint Strike Fighter (JSF) program, which was the merger of various combat aircraft programs from the 1980s and 1990s. One progenitor program was the Defense Advanced Research Projects Agency (DARPA) Advanced Short Take-Off/Vertical Landing (ASTOVL) which ran from 1983 to 1994; ASTOVL aimed to develop a Harrier jump jet replacement for the U.S. Marine Corps ...
Lockheed Martin F-35 Lightning II development started in 1995 with the origins of the Joint Strike Fighter program and culminated in the completion of operational testing and start of full-rate production in 2021. [6] The X-35 first flew on 24 October 2000 and the F-35A on 15 December 2006.
However, by 2014 the USMC had decided to retire the AV-8B sooner because changing the transition orders of Harrier II and Hornet fleets to the Lightning II would save $1 billion (~$1.27 billion in 2023). The F-35B began replacing the AV-8B in 2016, with the AV-8B expected to continue service until 2025.
The F-35 Lightning II uses the Rolls-Royce LiftSystem, in which 29,000 hp [14] [15] [16] is diverted forward through a driveshaft from the engine's low-pressure (LP) turbine via a clutch [17] and bevel-gearbox to a vertically mounted, contra-rotating lift fan located forward of the main engine.
The JS Kaga is an Izumo-class multi-functional destroyer initially designed to accommodate up to 28 military helicopters.. The vessel measures just over 800 feet and weighs 24,000 tons — far ...
General Electric and Pratt & Whitney are fighting over the next F-35 engine. It's the most expensive defense program in history, so the stakes are high.
The Lockheed Martin X-35 is a concept demonstrator aircraft (CDA) developed by Lockheed Martin for the Joint Strike Fighter program.The X-35 was declared the winner over the competing Boeing X-32 and a developed, armed version went on to enter production in the early 21st century as the F-35 Lightning II.
The F-35 Lightning II isn’t keeping up with combat readiness goals—the latest hitch in a long line of problems with the costly plane.