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Free-Spinning Wind-Tunnel Tests of a Low-Wing Monoplane with Systematic Changes in Wings and Tails V : Effect of Airplane Relative DensityThe reported tests are a continuation of an NACA investigation being made in the free-spinning wind tunnel to determine the effects of independent variations in load distribution, wing and tail arrangement, and control disposition on the spin characteristics of airplanes. The standard series of tests was repeated to determine the effect of airplane relative density. Tests were made at values of the relative-density parameter of 6.8, 8.4 (basic), and 12.0; and the results were analyzed. The tested variations in the relative-density parameter may be considered either as variations in the wing loading of an airplane spun at a given altitude, with the radii of gyration kept constant, or as a variation of the altitude at which the spin takes place for a given airplane. The lower values of the relative-density parameter correspond to the lower wing loadings or to the lower altitudes of the spin.
Document ID
19930091768
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Seidman, Oscar
Neihouse, A I
Date Acquired
September 6, 2013
Publication Date
January 1, 1940
Report/Patent Number
NACA-TR-691
Accession Number
93R21058
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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