Gee Bee Racers by Peter M.Bowers

By Peter M.Bowers

;Gee Bee Racers[Aircraft Profile 051] КНИГИ ;ТЕХНИКА Название: Gee Bee Racers Автор: Peter M.Bowers Серия: plane Profile 051 Издательство: Profile courses Ltd Страниц:12 Формат: PDF в rarЯзык: английский Размер: 4.61 Мб Для сайта: Мир книгГоночные самолеты компании Gee Bee занимают уникальное положение в авиационной истории. Если учесть, что в 1931 и 1932 годах large Sportster'ы представляли собой базовую (не развитую) конструкцию, то можно сказать, что ни один самолёт в истории не появлялся на сцене столь выразительно, не достигал столь выдающегося места в памяти людей и не оказывал такого влияния на энтузиастов авиационных гонок. Всё это тем более замечательно, что основная карьера трёх самых известных самолётов этой марки продолжалась чуть больше одного года ifolder.ru.com zero

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Flo\y). Idealizatioll of Ihe procpss ('onsists in assuming tho :\Iach number to equal zero within this rpgion of speeds because small disturbancps (SOlllld oscillations) propagatp ill c\]l incompressihle l1llic! at an inlinitely high spope! ane!. conspqupntly, the ratio of the f1ight speec! to that of sOllne! tOllds to zero. Modern craft hayp high airspeeds at which flow O\'PI' them is attended by a considerahle changp in the rrpSSllre and. cOllseql1elltly. by a substantial change in thp densit~, all(1 temperature.

1. Basic Information from Aerodynamics 57 The values of c yo are usually very small even for asymmetric configurations (at low 6e and a) and equal zero exactly for craft with axial symmetry. 6 » Static Lateral Stability To analyse the lateral stability of a craft, one must consider jointly the nature of the change in the rolling and sideslip angles upon thesimultaneous action of the perturbing rolling j1:y and yawing Mit moments. If after the stopping of sllch action these angles diminish, tending to their initial values, we have static lateral stability.

The position of a craft relative to this coordinate system is determined by three angles: the yawing (course) angle ~J, the pitching angle &, and the rolling (banking) angle "(. The angle ~ is formed by the projection of the longitudinal body axis Ox onto the horizontal plane x~Oy~ (Ox *) and the axis Ox~; this angle is positive if the axis Ox~ coincides with the projection of Ox* by clockwise rotation about the axis Oy~. The angle & is that between the axis Ox and the horizontal plane x~Oz; and will be positive if this plane is below the longitudinal -------- - - - - - -..

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