Bell Helicopter is finalizing the design of its new Bell 525, a medium-lift helo in development that is due for first flight in 2014. The U.S. helicopter maker has completed much of the detailed design, says Bell Helicopter’s chief engineer on the 525 program, David King. “We have been releasing detailed designs for a six month period now … and this month we are having a batch of critical design reviews (CDR),” he said. CDR is one of the final steps before the program moves into “build ...


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