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Страна Конструктор Название Год Фото Текст

Delabrosse et Christollet monoplane

Страна: Франция

Год: 1910

Debort - monoplane - 1909 - Франция<– –>Demazel - biplane - 1912 - Франция

Журнал Flight

Delabrosse et Christollet

  Tested in September 1910, this big and unsuccessful tractor was probably the first with variable-geometry wing. Each wing panel was a large semicircle of fabric stretched between the fuselage and curved leading edge spars which pivoted on vertical struts to vary the wing area: the span could thus be modified from 11 to 7 m. The long partly-covered triangular-section fuselage had triangular control surfaces at the rear.
  Contemporary records show that Christollet was planning a machine called Abeille (bee), in 1909; this may have been the Delabrosse et Christollet - if, indeed, it was built.

Журнал - Flight за 1910 г.
Delabrosse and Christolet's variable monoplane with its wing extensions closed, giving 7 metres span.
Журнал - Flight за 1910 г.
DELABROSSE AND CHRISTOLET'S VARIABLE SURFACE MONOPLANE. - The machine with its "wings" fully extended, giving 9 metres span.