Flightglobal

NTSB REPORT FAULTS CONTROL SYSTEM GAPS IN FATAL 525 CRASH

A Bell Helicopter 525 test aircraft crashed, killing two flight test pilots, 18 months ago after a series of system design flaws in the fly-by-wire helicopter aggravated severe vibrations caused by the crews unusually slow recovery from a test using a low...[More at: Flightglobal]