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Experimental Verification of the Rudder-free Stability Theory for an Airplane Model Equipped with Rudders Having Negative Floating Tendency and Negligible Friction by McKinney, Marion O. is a nonfiction available to read on EtoBox.
What is Experimental Verification of the Rudder-free Stability Theory for an Airplane Model Equipped with Rudders Having Negative Floating Tendency and Negligible Friction about?
An investigation has been made in the Langley free-flight tunnel to obtain an experimental verification of the theoretical rudder-free stability characteristics of an airplane model equipped with conventional rudders having negative floating tendencies and negligible friction. The model used in the tests was equipped with a conventional single vertical tail having rudder area 40 percent of the vertical tail area. The model was tested both in free flight and mounted on a strut that allowed freedom only in yaw. Measurements were made of the rudder-free oscillations following a disturbance in yaw. Tests were made with three different amounts of mass, moment of inertia, and center-of-gravity location of the rudder. Most of the stability derivatives required for the theoretical calculations were determined from force and free-oscillation tests of the particular model tested. The theoretical analysis showed that the rudder-free motions of an airplane consist largely of two oscillatory modes - a long-period oscillation somewhat similar to the normal rudder-fixed oscillation and a short-period oscillation introduced only when the rudder is set free. It was found possible in the tests to cr
Who reads Experimental Verification of the Rudder-free Stability Theory for an Airplane Model Equipped with Rudders Having Negative Floating Tendency and Negligible Friction?
It is typically read by self-directed learners exploring a subject in depth.
Common subject areas: history, science, philosophy, social sciences.
- Author
- McKinney, Marion O.
- Publisher
- Langley Memorial Aeronautical Laboratory, 1944.
- Published
- 1944
- Language
- EN
- Category
- nonfiction
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