Safety
Bizav Needs More Focus on High-altitude Stalls
A loss of control accident involving a Bombardier Challenger 604 at FL340 following a wake encounter with an A380 underscores the need.

Business aviation operators need “to focus on high-altitude stalls” in upset prevention and recovery training (UPRT), due to the effect of reduced air density on aircraft performance and aerodynamics, said John Cox, CEO of Safety Operating Systems, last week at the Business Aviation Safety Summit (BASS) in Phoenix. “The instability [at high altitude] is something we’re not adequately addressing,” he said, noting many pilots have no experience hand-flying aircraft at high altitudes due to RVSM mandates on using autopilots above FL290.

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