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Comparison of free-spinning wind-tunnel results with corresponding full-scale spin results
Report presenting a study of comparable information on full-scale spinning results and NACA free-spinning wind-tunnel results in order to determine the degree of reliability of tunnel results in predicting the spinning behavior of airplanes. Satisfactory agreement between model and airplane was found in 16 instances and disagreement was found in 5 instances.
Date:
December 1938
Creator:
Seidman, Oscar & Neihouse, A. I.
System:
The UNT Digital Library
Effects of Simulated Ice Formation on the Aerodynamic Characteristics of an Airfoil
Report presenting an investigation of the size and distribution of ice particles on the wings of aircraft and how they affect the aerodynamic characteristics. A simulated ice formation was generated from survey information received from aircraft pilots and was tested to determine the impact on the lift characteristics.
Date:
May 1938
Creator:
Gulick, Beverly G.
System:
The UNT Digital Library
Aerodynamic Characteristics of a 4-Engine Monoplane Showing Effects of Enclosing the Engines in the Wing and Comparisons of Tractor- and Pusher-Propeller Arrangements
Report presenting testing in the full-scale wind tunnel on a model of a large 4-engine monoplane to determine the overall aerodynamic efficiency of a conventional wing-nacelle-engine installation as compared with power-plant installations enclosed in the wing with extension shafts to the propellers. Results regarding power-on and power-off performance for the installations as well as propeller noise are provided.
Date:
April 1938
Creator:
Silverstein, Abe & Wilson, Herbert A., Jr.
System:
The UNT Digital Library