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Effect of Mach and Reynolds Numbers on Maximum Lift Coefficient

Description: Report presenting an investigation of the effects of Mach and Reynolds numbers on the maximum lift coefficient of aircraft. Flight testing was conducted on six airplanes outfitted with measuring tools and flow at various Mach and Reynolds numbers.
Date: March 28, 1946
Creator: Spreiter, John R. & Steffen, Paul J.
Partner: UNT Libraries Government Documents Department
open access

Investigation of the performance of a 20-inch ram jet using preheated fuel

Description: Report presenting the performance characteristics of a 20-inch ramjet opeerating with preheated unleaded 62 octane fuel. The results of the investigation indicated an improvement in the combustion efficiency and operating range of the ramjet when using preheated fuel.
Date: October 28, 1946
Creator: Perchonok, Eugene; Wilcox, Fred A. & Sterbentz, William H.
Partner: UNT Libraries Government Documents Department
open access

Investigations of Effects of Surface Temperature and Single Roughness Elements on Boundary-Layer Transition

Description: "The laminar boundary layer and the position of the transition point were investigated on a heated flat plate. It was found that the Reynolds number of transition decreased as the temperature of the plate is increased. It is shown from simple qualitative analytical considerations that the effect of variable viscosity in the boundary layer due to the temperature difference produces a velocity profile with an inflection point if the wall temperature is higher than the free-stream temperature" (p.… more
Date: August 28, 1946
Creator: Liepmann, Hans W. & Fila, Gertrude H.
Partner: UNT Libraries Government Documents Department
open access

Determination of the Molecular Weight of "Tuballoy Pentachloride"

Description: The following report describes methods used to interpret analytical results of the molecular weight of tuballoy pentachloride.
Date: February 28, 1946
Creator: Goren, H. L.; Lowrie, Robert Sydney & Hubbard, J. V.
Partner: UNT Libraries Government Documents Department
open access

Investigation of Dive Brakes and a Dive-Recovery Flap on a High-Aspect-Ratio Wing in the Langley 8-Foot High-Speed Tunnel

Description: "The results of tests made to determine the aerodynamic characteristics of a solid brake, a slotted brake, and a dive-recovery flap mounted on a high aspect ratio wing at high Mach numbers are presented. The data were obtained in the Langley 8-foot high-speed tunnel for corrected Mach numbers up to 0.940. The results have been analyzed with regard to the suitability of dive-control devices for a proposed high-speed airplane in limiting the airplane terminal Mach number by the use of dive brakes… more
Date: August 28, 1946
Creator: Mattson, Axel T.
Partner: UNT Libraries Government Documents Department
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