Remove Flight Deck Remove Groundspeed Remove Turbulence
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Riding the Mountain Waves

Plane and Pilot

Often, turbulence is the harbinger of mountain waves, not the ideal ceiling—and visibility unlimited—day. Anything in the airplane not tied down floated, even dust from the flight deck carpet, then slammed to the nearest surface moments later as we were caught by the next wave. I flew into that and the venturi effect that day.