The Sikorsky/Boeing SB-1 Defiant is back flying after a delay caused by “joint creep” identified in the propulsion system testbed gearbox. The Defiant team decided to fix the issue instead of continuing flight test because if the repair was pushed back it would have impacted the schedule significantly, Kenneth Eland, Future Long Range Assault Aircraft (FLRAA) program manager at Boeing, told reporters Oct. 15 at the annual Association of the U.S. Army exposition in Washington. ...

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