Major structural problems keep F-15 down

Washington Post:

Air Force inspectors have discovered major structural flaws in eight older-model F-15 fighters, sparking a new round of examinations that could ground all of the older jets into January or beyond, senior Air Force and defense officials said.

The Air Force's 442 F-15A through F-15D planes, the mainstay of the nation's air-to-air combat force for 30 years, have been grounded since November, shortly after one of the airplanes broke into large chunks and crashed in rural Missouri. Since then, Air Force officials have found cracks in the main support beams behind the cockpits of eight other F-15s, and they fear that similar problems could exist in others.

Current and former Air Force officials said that the grounding of the F-15s -- on average 25 years old -- is the longest that U.S. fighter jets have ever been kept out of the air. Even if the jets are cleared for flight, they add, it could take six months to get the pilots and aircraft back to their normal status.

The grounded fighter jets do not include 224 F-15Es, which have been inspected and cleared. The E models, used to support the wars in Iraq and Afghanistan, are about 10 years younger and have a more robust frame.

The F-15A-Ds, meanwhile, are responsible for defending the United States, including flying combat air patrol missions over Washington, a job now filled by F-16s.

"This is going to be a major problem, and it's going to be a difficult one to recover from," said retired Air Force Gen. Dick Hawley, who led the Air Force's Air Combat Command from 1996 to 1999. "You could basically be without the nation's primary air superiority capability for an extended period of time, which puts us at risk."

The disclosure of the cracks comes amid intense Air Force lobbying for the purchase of additional new fighter jets. The Air Force wants to replace its aging F-15s with 200 more F-22 Raptors beyond the 183 already approved by Congress and the Defense Department. Senior Defense Department officials have not agreed that the additional planes are needed or supported their purchase. The F-22s, which cost $132 million each, are manufactured by Lockheed Martin, a Bethesda-based firm.

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Wheeler said Congress should look into the F-15 issue. In another prominent case, involving refueling tankers, several independent study panels concluded that the Air Force had exaggerated the structural consequences of aging for older planes so that it could make a better case for leasing new ones.

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There does appear to be a coincidence of purpose for the Air Force which has been lobbying and leaking in a campaign for new planes for some times. Their main problem is that the cost of the F-22 grew so much that the number of planes that fit in the budget had to shrink. For some reason the article did not mention the F-35 which is getting close to production and cost substantially less. It is not clear why the F-16 is not an adequate replacement for the air cap missions over the US.

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