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Calculation of lateral-directional stability derivatives of wings by a nonplanar quasi-vortex-lattice methodThe nonplanar quasi-vortex-lattice method is applied to the calculation of lateral-directional stability derivatives of wings with and without vortex-lift effect. Results for conventional configurations and those with winglets, V-tail, etc. are compared with available data. All rolling moment derivatives are found to be accurately predicted. The prediction of side force and yawing moment derivatives for some configurations is not as accurate. Causes of the discrepancy are discussed. A user's manual for the program and the program listing are also included.
Document ID
19830022116
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Lan, C. E. (Kohlman Aviation Corp. Lawrence, KS, United States)
Date Acquired
September 4, 2013
Publication Date
January 1, 1981
Subject Category
Aerodynamics
Report/Patent Number
NASA-CR-165659
NAS 1.26:165659
REPT-80-001
Accession Number
83N30387
Funding Number(s)
PROJECT: RTOP 530-01-13-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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