August 13, 2013
By Jim Moore
Advanced warning, or even avoidance of clear-air turbulence may be possible in coming years, and a Cessna Citation is flying circuits out of Amsterdam and over Europe to make it happen.
The joint effort by various European aerospace agencies seeks to detect wind shear strong enough to produce waves which compromise smooth airflow over wings, and lift. Those waves are the cause of clear-air turbulence.
A short-wave, ultraviolet laser mounted on a probe extending forward of the Citation’s nose sends a beam along the flight path, and sensitive instruments measure the backscatter, or reflection, of that light from air molecules. The density of oxygen and nitrogen can then be calculated, and clear air turbulence is then revealed indirectly.
Researchers from several countries are collaborating in hope that one day a cockpit instrument could give pilots enough warning to direct passengers to their seats, or, better still, steer around the bumps.
AOPA Online Associate Editor Jim Moore joined AOPA in 2011 and is an instrument-rated private pilot who enjoys competition aerobatics.
Prolific helicopter manufacturer Robinson saw lower sales in 2014 on weak global demand, but a new engine deal and some aircraft options indicate a strong future.
Declaring this “a time for disruptors,” flamboyant MD Helicopters owner Lynn Tilton vowed to keep her storied company moving forward into her second decade of ownership.
The FAA needs to be more efficient and complete critical projects, House leaders said during a hearing on FAA reauthorization.
VOLUNTEER AT AN AOPA FLY-IN NEAR YOU!
SHARE YOUR PASSION. VOLUNTEER AT AN AOPA FLY-IN. CLICK TO LEARN MORE >>>
VOLUNTEER LOCALLY AT AOPA FLY-IN! CLICK TO LEARN MORE >>>
BE A PART OF THE FLY-IN VOLUNTEER CREW! CLICK TO LEARN MORE >>>