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Автор: P. Przymusiala
Издательство: Wydawnictwo Militaria
Год издания: 2003
isbn: 8372191578
Количество страниц: 52
Язык: english
Формат: PDF (scan)
Размер: 26 Мб
Каталожный номер: 94510
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Язык: польский / английский. The first Bell helicopter to use a turbine engine was a modified Model 47 (designated XH-13F), which had its initial flight in October 1954. The U.S. Army began a competition for a new helicopter for general utility and medical/casualty evacuation in 1955. In June 1955, Bell Helicopter was awarded a contract to develop the next generation turbine-powered utility helicopter for the U.S. Army.
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