Low-altitude wind shear and its hazard to aviation : report of the Committee on Low-Altitude Wind Shear and Its Hazard to Aviation.

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National Academy Press

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National Academy Press

Congressional concern over the crash of Pan American World Airways Flight 759, a Boeing 727, minutes after takeoff from the New Orleans International Airport on July 9, 1982, resulted in legislation passed in December 1982 providing that the FAA enter into an agreement with NAS to study and assess the hazards of low-altitude wind shear on takeoff and landing aircraft operations. To accomplish this task the NRC established the Committee on Low-Altitude Wind Shear and Its Hazard to Aviation, consisting of two panels: the Panel on Low-Altitude Wind Variability and the Panel on Aircraft Performance and Operations. The committee's principal finding confirmed that low-altitude wind variability (or wind shear) presents an infrequent but highly significant hazard to aircraft landing or taking off. Fortunately, most severe types of wind shear are relatively infrequent, generally short lived, and affect only local areas. Some wind shears have been understood by meteorologists for a number of years. These include those found in gust fronts, warm and cold air-mass fronts, mountain waves, low-level jet streams, gravity waves, terrain-induced turbulence, and sea-breeze fronts. Most are predictable, sometimes hours in advance. The more-skilled pilots recognize the potential presence of these shears and the dangers they pose. Scientists have recently begun to recognize the importance of storm downdrafts that are unusually small in horizontal cross sections and that are of short duration. Such downdrafts have been called microbursts. These often severe but localized events present the greatest danger to aircraft operations. Wind shear that resulted from the strongest microbursts actually measured in the summer of 1982 Joint Airport Weather Studies (JAWS) in Denver could not have been penetrated safely if encountered below 300-500 feet of altitude by an aircraft during takeoff or landing.

لغو

گزارش تخلف

مغایرت عنوان کتاب با توضیحات و تصویر جلد
عدم رعایت حقوق نشر طبق قوانین جمهوری اسلامی ایران
محتوای مستهجن
توهین به قومیتها و محتوای نژادپرستی
توهین به اقیلیتهای مذهبی
اهانت به مقامات سیاسی و مذهبی
اشاعه ی کودک آزاری
سایر موارد

بستن

فرمت کتاب

ebook

زبان

english

تاریخ انتشار

1983

نویسنده

National Research Council (U.S.). Committee on Low-Altitude Wind Shear and Its Hazard to Aviation.,National Research Council (U.S.). Aeronautics and Space Engineering Board.,National Research Council (U.S.). Board on Atmospheric Sciences and Climate

ناشر

National Academy Press

شابک

0309034329 9780309034326

20,000 تومان

خرید کتاب مطالعه نمونه درخواست ترجمه کتاب

خرید کتاب Low-altitude wind shear and its hazard to aviation : report of the Committee on Low-Altitude Wind Shear and Its Hazard to Aviation.

Low-altitude wind shear and its hazard to aviation : report of the Committee on Low-Altitude Wind Shear and Its Hazard to Aviation.

گزارش تخلف

فرمت کتاب

ebook

زبان

english

تاریخ انتشار

1983

نویسنده

ناشر

شابک

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