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Summary and Analysis of Horizontal-Tail Contribution to Longitudinal Stability of Swept-Wing Airplanes at Low SpeedsAir-flow characteristics behind wings and wing-body combinations are described and are related to the downwash at specific tall locations for unseparated and separated flow conditions. The effects of various parameters and control devices on the air-flow characteristics and tail contribution are analyzed and demonstrated. An attempt has been made to summarize certain data by empirical correlation or theoretical means in a form useful for design. The experimental data herein were obtained mostly at Reynolds numbers greater than 4 x 10(exp 6) and at Mach numbers less than 0.25.
Document ID
19980223625
Acquisition Source
Headquarters
Document Type
Other - NASA Technical Report (TR)
Authors
Neely, Robert H. (NASA Langley Research Center Hampton, VA United States)
Griner, Roland F. (NASA Langley Research Center Hampton, VA United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1959
Subject Category
Aircraft Stability And Control
Report/Patent Number
NASA-TR-R-49
Report Number: NASA-TR-R-49
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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