BLADE WITH SWEPT TIP FOR ROTATING LIFTING SURFACE OF FLYING VEHICLE Russian patent published in 1999 - IPC

Abstract RU 2139811 C1

FIELD: aviation. SUBSTANCE: blade is divided into four zones; length of chord of each elementary cross section in first zone increases linearly; length of chord in second zone is maximum and constant length of chord in third zone decreases linearly and length of chord in fourth zone decreases in accordance with parabolic function. EFFECT: improved aerodynamic characteristics at high speeds. 10 cl, 6 dwg

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RU 2 139 811 C1

Authors

Fransua Valentin Gaston Tul'Mej

Zhual' Margerita Zibi

Dates

1999-10-20Published

1997-11-18Filed