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New F35 exceeds every required spec – By repeatedly reducing every required spec
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America’s latest stealth fighter just got heavier, slower and more sluggish. For the second time in a year, the Pentagon has eased the performance requirements of the F-35 Joint Strike Fighter (JSF). The reduced specs — including a slower acceleration and turning rate — lower the bar for the troubled trillion-dollar JSF program, allowing it to proceed toward full-rate production despite ongoing problems with the plane’s complex design. Under the old specs, the stealth fighter, due to enter service in 2018 or 2019, probably wouldn’t pass its Pentagon-mandated final exams.
At the same time, newly identified safety problems could force F-35-smith Lockheed Martin to add fire-suppression gear that will only increase the plane’s weight and further decrease its maneuverability. The JSF is meant to be a jack of all trades, equally capable of dropping bombs and fighting other aircraft — the latter requiring extreme nimbleness in the air.
For the pilots who will eventually take the F-35 into combat, the JSF’s reduced performance means they might not be able to outfly and outfight the latest Russian- and Chinese-made fighters. Even before the downgrades, some analysts questioned the F-35′s ability to defeat newer Sukhoi and Shenyang jets. Despite the JSF’s lower specs, Lockheed bizarrely claims its new plane is now more maneuverable than every other fighters in the world except the company’s own F-22.
Reduced F35 Specs
The latest bad news came in mid-January the form of the annual weapons-testing report (.pdf) overseen by J. Michael Gilmore, the Defense Department’s Director of Operational Test and Evaluation. The report revealed that the government’s F-35 program office had changed performance specs for all three JSF variants: the Air Force’s F-35A; the vertical-landing Marine Corps F-35B; and the carrier-launched F-35C flown mainly by the Navy.
* reducing turn performance from 5.3 to 4.6 sustained g’s
* extending the time for acceleration from 0.8 Mach to 1.2 Mach by eight seconds
* F-35B and F-35C also had their turn rates and acceleration time eased. The B-model jet’s max turn went from 5.0 to 4.5 g’s and its acceleration time to Mach 1.2 was extended by 16 seconds. The F-35C lost 0.1 g off its turn spec and added a whopping 43 seconds to its acceleration.
See more and subscribe to NextBigFuture at 2013-02-12 10:30:24 Source: http://nextbigfuture.com/2013/02/new-f35-exceeds-every-required-spec-by.html
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