6. Mechanical design

6.1 Stationary external forces on the blade

In a steady state (aircraft level at constant speed, axis of propeller rotation parallel to aircraft speed, constant propeller speed and flow undisturbed by the aircraft), a blade is subjected to time-independent forces (figure 27 ) which are :

centrifugal force ;
aerodynamic forces ;
a torque about its pitch axis (see figure

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Bibliography

References

(1) - BOUSQUET (J.M.) - Introduction à l'aérodynamique des hélices - . École supérieure des techniques aérospatiales (ESTA) (1998).
(2) - Source - : société Ratier-Figeac (1998).
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