Low-Altitude Wind Shear and Its Hazard to Aviation (1983) / Chapter Skim
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4. Conclusions
4. Conclusions
Pages 79-84
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From page 79... ...
4. INADEQUATE CLIMATIC INFORMATION To establish how often various wind shears occur, the hazards they pose, and the best ways to detect them, it is necessary to record wind-velocity data at LLWSAS-equipped airports and to analyze other relevant data obtained by suitable radar and airborne equipment.
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From page 80... ...
5. WIND SHEAR ASSOCIaTED WITH CONVECTIVE STORMS Mos t detailed observations of low-altitude wind shear have come from short-term research pro jects conducted near O'Hare International Airport (NIMROD Pro ject ~ in Chicago and Stapleton International Airport (JAWS Project)
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From page 81... ...
It can be used to measure precipitation, to detect and track storms, and to identify the precursors of low-altitude wind shear. Although not intended to sense wind shears directly at the required 1- to 2-minute repetition frequency, NEXRAD's advanced technology will contribute substantially to the development of a radar for sensing wind shear at airport terminals.
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From page 82... ...
in either precipitation or clear air. A program of development and testing could establish if it is technically feasible to develop a practical airborne pulsed Doppler radar to detect wind shear even at low altitudes where ground clutter presents special problems.
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From page 83... ...
Both content and uniformity of terminology need improvement to ensure general unders Landing among pilots of aspects of flight at high angles of attack, near stickshaker speed, and when emergency engine power is recommended. In many cases, insufficient emphasis is placed on the potential severity and hazard from s bong wind shears and the importance of their early recognition and immediate reaction to strong shear conditions.
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From page 84... ...
For example, arresting the descent of large commercial transports during recovery from shear encounters during either takeoff or landing may require extreme nose-high attitudes and sustained flight near stall angles of attack. Since both general aviation aircraft and swept-wing transport aircraft are vulnerable to a significant extent to wind shears, the hazards of encounters need to be publicized widely throughout the entire aviation community.
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