
1) Aviation hazard
Found on
https://www.crosswordclues.com/clue/windshear

localised change in wind speed and/or direction over a short distance, resulting in a tearing or shearing effect, usually at low altitude, that can cause a sudden loss of airspeed with occasionally disastrous results if encountered when taking-off or landing.
Found on
http://airodyssey.net/reference/glossary/

The Windshear Full Scale Rolling Road Wind Tunnel is an automotive wind tunnel in Concord, North Carolina. In January 2008 Wind Shear, a division of US machine tool builder Haas Automat-80.7ion, completed construction on one of the most advanced automotive wind tunnels in the world. The full-scale tunnel is located adjacent to Concord Regional Air...
Found on
http://en.wikipedia.org/wiki/WindShear
No exact match found.