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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Authors
Dates
1999-10-20—Published
1997-11-18—Filed