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Estimation of Directional Stability Derivatives at Moderate Angles and Supersonic SpeedsA study of some of the important aerodynamic factors affecting the directional stability of supersonic airplanes is presented. The mutual interference fields between the body, the lifting surfaces, and the stabilizing surfaces are analyzed in detail. Evaluation of these interference fields on an approximate theoretical basis leads to a method for predicting directional stability of supersonic airplanes. Body shape, wing position and plan form, vertical tail position and plan form, and ventral fins are taken into account. Estimates of the effects of these factors are in fair agreement with experiment.
Document ID
19980228137
Acquisition Source
Headquarters
Document Type
Other - NASA Memorandum (MEMO)
Authors
Kaattari, George E.
(NASA Ames Research Center Moffett Field, CA United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1959
Subject Category
Aircraft Stability And Control
Report/Patent Number
NASA-MEMO-12-1-58A
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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