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Installation of its eight 30-foot-long rigid rotor blades is all the SB-1 Defiant needs to be a complete compound helicopter scheduled for a first flight before the end of the year.“Defiant has been completely built, minus the rotor blades,” Rich Koucheravy, Sikorsky’s [LMT] future vertical lift director, said Oct. 8 at the Association of the U.S. Army’s annual expo in Washington, D.C. “We have run nearly all of the aircraft systems, so not only have the individual components been put…
