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The Effects of a Highly Cambered Low-Drag Wing and of Auxiliary Flaps on the High-Speed Aerodynamic Characteristics of a Twin-Engine Pursuit Airplane Model
Results are presented for tests of two wings, an NACA 230-series wing and a highly-cambered NACA 66-series wing on a twin-engine pursuit airplane. Auxiliary control flaps were tested in combinations with each wing. Data showing comparison of high-speed aerodynamic characteristics of the model when equipped with each wing, the effect of the auxiliary control flaps on aerodynamic characteristics, and elevator effectiveness for the model with the 66-series wing are presented. High-speed aerodynamic characteristics of the model were improved with the 66-series wing.
Date:
February 19, 1944
Creator:
Ganzer, Victor M.
System:
The UNT Digital Library
An Interim Report on the Stability and Control of Tailless Airplanes
Problems relating to the stability and control of tailless airplanes are discussed in consideration of contemporary experience and practice.
Date:
August 19, 1944
Creator:
Donlan, Charles J.
System:
The UNT Digital Library
An Interim Report on the Stability and Control of Tailless Airplanes
Problems relating to the stability and control of tailless airplanes are discussed in consideration of contemporary experience and practice.
Date:
August 19, 1944
Creator:
Donlan, Charles J.
System:
The UNT Digital Library
Résumé of NACA Stability and Control Tests of the Bell P-63 Series Airplane
Report on stability and control tests of the Bell P-63 series airplanes. Information about the spin characteristics, lateral control characteristics, longitudinal stability and control characteristics and directional stability and control characteristics is provided. A chronology of testing and detailed description of the airplane and its modifications are also provided.
Date:
October 19, 1944
Creator:
Johnson, Harold I.
System:
The UNT Digital Library
Summary of measurements in Langley full-scale tunnel of maximum lift coefficients and stalling characteristics of airplanes
"The results of measurements in the Langley full-scale tunnel of the maximum lift coefficients and stalling characteristics of airplanes have been collected. The data have been analyzed to show the nature of the effects on maximum lift and stall of wing geometry, fuselages and nacelles, propeller slipstream, surface roughness, and wing leading-edge appendages such as ducts, armaments, tip slats, and airspeed heads. Comparisons of full-scale-tunnel and flight measurements of maximum lift and stall are included in some cases, and the effects of the different testing techniques on the maximum-lift measurements are also given (p. 1)".
Date:
May 19, 1944
Creator:
Sweberg, Harold H. & Dingeldein, Richard C.
System:
The UNT Digital Library
The Theory of Propellers 2: Method for Calculating the Axial Interference Velocity
"A technical method is given for calculating the axial interference velocity of a propeller. The method involves the use of certain weight functions P, Q, and F. Numerical values for the weight functions are given for two-blade, three-blade, and six-blade propellers" (p. 53).
Date:
September 19, 1944
Creator:
Theodorsen, Theodore
System:
The UNT Digital Library