Search results
Results From The WOW.Com Content Network
Wind shear refers to the variation of wind velocity over either horizontal or vertical distances. Airplane pilots generally regard significant wind shear to be a horizontal change in airspeed of 30 knots (15 m/s) for light aircraft, and near 45 knots (23 m/s) for airliners at flight altitude. [3]
In common usage, wind gradient, more specifically wind speed gradient [1] or wind velocity gradient, [2] or alternatively shear wind, [3] is the vertical component of the gradient of the mean horizontal wind speed in the lower atmosphere. [4] It is the rate of increase of wind strength with unit increase in height above ground level.
LLWAS wind shear and microburst alerts assist pilots during busy times on final approach and on departure, often when heavy traffic, low ceilings, obstructions to vision, and moderate to heavy precipitation add to the difficulty in determining in just a few seconds whether mounting wind and weather hazards should be risked or avoided.
USAir Flight 1016 was a regularly scheduled flight in the southeastern United States, between Columbia, South Carolina, and Charlotte, North Carolina. [1]: 1 On July 2, 1994, the flight encountered heavy thunderstorms and microburst-induced windshear while attempting to land, and crashed into heavy trees and a private residence near the airport.
Wind powers the voyages of sailing ships across Earth's oceans. Hot air balloons use the wind to take short trips, and powered flight uses it to increase lift and reduce fuel consumption. Areas of wind shear caused by various weather phenomena can lead to dangerous situations for aircraft. When winds become strong, trees and human-made ...
Wind shear is a difference in wind speed and direction over a relatively short distance in the atmosphere. It may also refer to: Windshear (comics), a Marvel Comics character; Windshear, child of Bulletman and Bulletgirl; Wind Shear's Full Scale, Rolling Road, Automotive Wind Tunnel
The resultant airborne wind shear detection and alert system was installed on many commercial airliners in the United States after the Federal Aviation Administration mandated that all commercial aircraft must have on-board wind shear-detection systems. [4] [29] [30]
Simple shear, a special case of deformation of a fluid; Shear (fluid), in fluid dynamics, refers to the shear stresses and responses thereto in fluids; Shear rate, a gradient of velocity in a flowing material; Shear line (meteorology), an area of wind shear; Wind shear, a difference in wind speed or direction between two wind currents in the ...