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Damaged F-35 likely to be stripped for parts
originally posted by: WeOwnTheNight
originally posted by: DaMac
originally posted by: WeOwnTheNight
"With only 20 B-2s — as precious as those aircraft are — no one even questioned whether or not we'd make the investment," said Norton A. Schwartz, a retired four-star general who served as Air Force chief of staff at the time of the incident.
I'd imagine if the lines were still open for the B-2 at the time of that fire they would not have undertaken such a task. Although that is pure speculation on my part, but considering the low production numbers of the B-2, it makes sense considering how long they plan on keeping them around
The engine failed when the third-stage forward integral arm of a rotor fractured and liberated during takeoff,” AETC says in an announcement. “Pieces of the failed rotor arm cut through the engine’s fan case, the engine bay, an internal fuel tank and hydraulic and fuel lines before exiting through the aircraft’s upper fuselage.” Leaking fuel and hydraulic fluid ignited and burned the “rear two thirds of the aircraft,” the announcement says. Friction caused the integral arm in the third-stage rotor to break.
The fix from Pratt is to “pre-trench” the polyimide foam lining between the stators and knife-edge seal forward of the third-stage integrally bladed rotor. The mishap occurred because of a low tolerance, causing friction.