FIELD: aviation.
SUBSTANCE: lifting surface aerodynamic profile has a chord with the length B. The leading edge of the profile is rounded, the rear edge is sharpened or blunted. Edges are located on the ends of the chord profile and connected to each other by smooth lines of top and bottom parts of the profile contour. The leading edge of the blade profile has radiuses of rounding-off of the top part of rt contour in the range 0.009V÷0.017V, and the bottom part of Rb contour - in the range 0.006V÷0.013V. The maximum relative thickness of C profile is in the range 0.092V÷0.098V and is located at the distance X = 0.24V÷0.45V from the leading edge of the profile along its chord.
EFFECT: increase of load bearing capacity.
3 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
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| AERODYNAMIC PROFILE OF CROSS SECTION OF LIFTING SURFACE AREA (VERSIONS) | 2014 |
|
RU2547475C1 |
| PROPELLER BLADE | 1996 |
|
RU2123453C1 |
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| PROPELLER BLADE AND AEROFOIL PROFILE OF BLADE (VERSIONS) | 1996 |
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