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.
As the cold weather chills AOPA’s Headquarters in Frederick, many of us are inside generating new resources for flying clubs.
In my house, every Friday night is “Movie Night.” While the movies are rarely educational (I don’t think I learned anything from the Lego Movie), we look forward to the weekly opportunity to spend time together. Why not use the same concept for your Flying Club (with the addition of education, of course)?
AOPA Flying Club Manager Kelby Ferwerda posted the following on the AOPA Flying Club Facebook Page: “Recently I’ve talked with quite a few Flying Clubs about maintaining social activity through the cold winter months. Some clubs host Holliday Parties, others have Potluck Movie Nights. What does your club do to keep members involved during the chilly months?”
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