Can I read Propellers in Yaw on EtoBox?

Propellers in Yaw by Ribner, H. S. 1913- is a nonfiction available to read on EtoBox.

What is Propellers in Yaw about?

It was realized as early as 1909 that a propeller in yaw develops a side force like that of a fin. In 1917, R.G. Harris expressed this force in terms of the torque coefficient for the unyawed propeller. Of several attempts to express the side force directly in terms of the shape of the blades, however, none has been completely satisfactory. An analysis that incorporates induction effects not adequately covered in previous work and that gives good agreement with experiment over a wide range of operating conditions is presented herein. The present analysis shows that the fin analogy may be extended to the form of the side-force expression and that the effective fin area may be taken as the projected side area of the propeller. The effective aspect ratio is of the order of 8 and the appropriate dynamic pressure is roughly that at the propeller disk as augmented by the inflow. The variation of the inflow velocity, for a fixed-pitch propeller, accounts for most of the variation of side force with advance-diameter ration V/nD

Who reads Propellers in Yaw?

Author

Ribner, H. S. 1913-

Publisher

Langley Memorial Aeronautical Laboratory, 1943.

Published

1943

Language

EN

Category

nonfiction