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Old 5th May 2008, 13:32
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Check Airman
 
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Windshear, being the change of wind vector from one point in space to another, is given by the vector difference between the winds at the two points, which itself is a vector(having both speed and direction). The intensity of the shear is calculated by dividing the magnitude of the vector difference between the two points by the distance between them, using consistent units.The calculation of the shear may be done graphically using the triangle of velocities or by subtraction of the components of the two wind vectors either manually or by computer or by trigonometry.



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