Rotor (meteorology)

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Rotor - in meteorology, it is an area of ​​intense turbulence that occurs on the leeward side of a mountain range, large structures, or other significant changes in terrain. The cause of rotors is the loss of laminar airflow called turbulence.

Rotors are very dangerous for gliders, airplanes and paragliding. Intrusion in their range can cause sudden loss of load capacity, and consequently a serious accident. Therefore the aviator should follow the rule that the dangerous flight zone extends from the top to the distance L = k · H · V (2x the height of the x wind speed - see the drawing) and 4/3 of the elevation.

L-distance from the summit to the wind [m]

k-safety factor of 2 [s / m] slope height [m]

V-wind speed [m / s]

Example: wind 6 m / s, elevation 300 m → distance from the top = 3600 m, height = 400 m (L = 2 · 6 · 300 = 3600, h = 300 · 4/3 = 400) p>



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