Knot True Airspeed Wind Shear 
Air
MAY 21, 2025
Wind Shear: The Abrupt Shift Wind shear refers to any abrupt divergence in wind characteristics be it speed, direction, or both that unfolds over a minimal distance. DC = arctan(TAS/Vc) Where TAS is the True Airspeed. And it’s unique in Europe! – A negative value indicates tailwind.
Chess In the Air
JUNE 24, 2022
Moderate wind shear in some areas could make some thermals somewhat difficult to work but that, too, is typical. Between 5:10 and 5:34 PM, Rifle’s AWOS system reported light winds out of the west in the range of 4 to 9 kts (see chart below) with no wind gusts. Some passing high clouds were unlikely to be a factor.
Expert insights. Personalized for you.
52 
Let's personalize your content