F-35 Joint Strike Fighter

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The F-35′s Air-to-Air Capability Controversy
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Ovog meseca stizu novi F-35A u AFB Edwards i AFB Nellis.

Citat:Operational testers at Edwards AFB, California, are expected to receive their first Lockheed Martin F-35A Joint Strike Fighters (JSF) on 21 February. A sister squadron at Nellis AFB, Nevada, is expected to receive their first F-35s about a week later.

"Edwards is getting four Block 1B jets tentatively on 21 February," says a senior US Air Force official. "About 7-10 days later, Nellis will get four Block 2A jets."

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Lockheed Martin has discovered a new issue: the fighter’s aluminum root rib forgings -one on each wing, pictured above – failed in durability tests. (Credit Photo @ Alcoa)


Lockheed Martin will retrofit the first 64 production models of the F-35A and F-35B, after discovering a second aluminium part supplied by US-based producer Alcoa failed in durability tests. The redesigned wing forward root rib forgings will be installed on new aircraft ordered by the US Air Force and US Marine Corps in the fifth yearly lot of low-rate initial production, according to the F-35 joint programme office (JPO). The new structural problem was revealed even as the test fleet was cleared to resume un-monitored flying on 26 August, after Lockheed fixed a problem with the F-35′s power system. On 2 August, the Honeywell integrated power package failed, after a valve malfunctioned during a routine ground test on the AF-4 test aircraft. All test aircraft were cleared to resume monitored flights on 18 August, with un-monitored tests cleared eight days later. Early production aircraft remain effectively grounded, however, until a software modification can be installed in late September or October, the JPO said. The production models have been cleared to complete one ferry flight from Fort Worth, Texas, to Eglin AFB, Florida, as they are delivered. The structural problem is the second design change to be discovered in the 16,000h regimen of durability tests started last year. The first problem was revealed when the Alcoa-supplied 496 bulkhead in the rear fuselage of the F-35B (zabranjeno)ed unexpectedly only 10% through the durability test cycle. Lockheed designed a patch to ensure the test fleet could survive long enough to complete the flight test programme. According to the JPO, Lockheed’s engineers were aware of the weakness problem in the root rib forgings as the aircraft entered durability tests. The only surprise was that (zabranjeno)s appeared slightly later than expected, at 2,800h – about 17.5% through durability tests, the JPO said. Alcoa is working with Lockheed Martin to address the issue. “It is not unusual to identify improvement opportunities during testing,” the company said. “At no time was flight safety compromised.” Despite the 16-day flight test hiatus in August, the flight test programme has not fallen far behind schedule. The F-35A variant for the USAF is 20 flights ahead of schedule, and the F-35C variant for the US Navy is lagging by five flights. Furthest behind schedule is the F-35B, which is 30 flights behind the scheduled pace.

Source : Fight Global

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Obuka u MCAS Yuma
Februar 2013



Citat:Marine Corps Air Station Yuma
Aircraft rescue and fire fighter Marines learn how to correctly connect the hoist sling to the F-35B at Marine Corps Air Station Yuma, Feb. 8.
A crash fire rescue Marine stands by one of the hook points of the F-35B during a crane lift at Marine Corps Air Station Yuma, Feb. 8. This is a vital point to hoisting an aircraft in such a situation where it would be needed to.
A F-35B is attached to a crane in support of an aircraft lift training exercise with the Aircraft Rescue and Fire Fighting unit and Marine Fighter Attack Squadron 121 aboard Marine Corps Air Station Yuma,

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Bruka , razočaranje u Pentagonu .
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Jeste prsence ali zato ima opremu boli glava:

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сад ме интересује колко ће то крме да изађе на крају...100 милки, 200 милки или ко крептор преко 300 милки долара....

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sremac983 ::сад ме интересује колко ће то крме да изађе на крају...100 милки, 200 милки или ко крептор преко 300 милки долара....

Vec je presao 100 milki po komadu. Pola drzava ce da odustane od projekta, mozda ce i skroz da propadne, mada bi bila ogromna steta, jer je avion revolucija.

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револуција ЧЕГА!?

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Pre bih nazvao to evolucijom, nego revolucijom. I to pravom američkom - ima potencijala više nego prethodna generacija, ali se uprasio zbog junk food-a i koka kole, pa nije više nizašta.