Is wind shear a problem for aviation?
Wind shear refers to the variation of wind over either horizontal or vertical distances. Low-level wind shear can affect aircraft airspeed during takeoff and landing in disastrous ways, and airliner pilots are trained to avoid all microburst wind shear (headwind loss in excess of 30 knots [15 m/s]).
What do you mean by wind shear?
Wind Shear Defined Wind shear is a change in wind speed and/or direction over a short distance. It can occur either horizontally or vertically and is most often associated with strong temperature inversions or density gradients.
How do pilots detect that they are encountering wind shear?
How do pilots detect that they are encountering wind shear and what would they have to do to prevent it from turning into a bad situation? The most dangerous form of windshear for planes is the microburst. This is a downdraft that after it hits the ground spreads out in all directions.
What to do in the event of wind shear?
If wind shear is detected ahead, an aural caution of “MONITOR RADAR DISPLAY!” is presented to the pilots, along with a display on their screens showing where the wind shear has been predicted. This is know as predictive wind shear. Pilots can use this display to maneuver the aircraft to stay clear of the cone area depicted on their screens.
How does a plane protect itself from wind shear?
The weather radar system in today’s aircraft, such as the Boeing 787 Dreamliner which I fly, are so advanced that they give us greater protection from wind shear than ever before. As the radar scans the sky ahead of the aircraft, it is able to detect significant changes in the wind velocity.
Why is wind shear a threat to flight?
To understand why wind shear is a serious threat to the safety of a flight, we need to know what impact the wind has on an aircraft. Contrary to popular belief, it is not the engines that make aircraft fly, it is the wings. The engines merely provide the forward acceleration.