1.2.4.2.3. Evaporative cooling, virga and downbursts

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  • Author: SW101

[ADVANCED] x.6. Downbursts and aircraft safety / nova stran

Low-level Wind Shear Alert Systems (LLWSAS)

//July 8, 1989 – Denver Stapleton International Airport. After being alerted by LLWAS of an imminent encounter with a 95 kn (109 mph; 176 km/h) microburst, Captain Craig Levine initiated a missed approach, taking his Boeing 737 to full takeoff power, climbing 400 ft (120 m) and adding 40 kn (46 mph; 74 km/h) of airspeed. Encountering the microburst at full takeoff power, they lost 400 ft (120 m) of altitude and lost 50 kn (58 mph; 93 km/h) of airspeed in about one-half of a minute. This event is a documented “save” of an airplane by a windshear alert system.[7][8][9][10]

Airborne wind shear detection and alert system and Predictive wind shear (PWS) systems

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