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Determination of Longitudinal Stability of the Bell X-1 Airplane From Transient Responses at Mach Numbers Up to 1.12 at Lift Coefficients of 0.3 and 0.6

Description: Report presenting an analysis of a number of free-flight transient responses resulting from small stabilizer movements obtained during testing of the Bell X-1 airplane to obtain its longitudinal stability characteristics. A comparison of flight data and model test data is also provided.
Date: November 7, 1950
Creator: Angle, Ellwyn E. & Holleman, Euclid C.
Partner: UNT Libraries Government Documents Department
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Low-Speed Pressure-Distribution Measurements at Reynolds Number of 3.5 X 10(Exp 6) on a Wing With Leading-Edge Sweepback Decreasing From 45 Degrees at the Root to 20 Degrees at the Tip

Description: "Results are presented of an investigation to determine the pressure distributions on a wing with leading-edge sweepback decreasing from 45 degrees at the root to 20 degrees at the tip, an aspect ratio of 4.12, taper ratio of 0.36, and NACA 64A009 airfoil section. Tests were conducted at a Reynolds number of 3.5 x 10(exp 6) and a Mach number of 0.07 on the wing with and without 0.20 chord and 0.65 span split flaps deflected 60 degrees. These pressure distributions are analysed herein to determi… more
Date: July 7, 1950
Creator: Barnett, U. Reed, Jr. & Lange, Roy H.
Partner: UNT Libraries Government Documents Department
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Preliminary Analysis of Problem of Determining Experimental Performance of Air-Cooled Turbine 2: Methods for Determining Cooling-Air-Flow Characteristics

Description: In the determination of the performance of an air-cooled turbine, the cooling-air-flow characteristics between the root and the tip of the blades must be evaluated. The methods, which must be verified and the unknown functions evaluated, that are expected to permit the determination of pressure, temperature, and velocity through the blade cooling-air passages from specific investigation are presented.
Date: June 7, 1950
Creator: Ellerbrock, Herman H., Jr.
Partner: UNT Libraries Government Documents Department
open access

Effect of compressor-outlet bleedoff on turbojet-engine performance

Description: An investigation was conducted in the NACA Lewis altitude wind tunnel to determine the effect of compressor-outlet bleedoff on the performance of an axial-flow turbojet engine equipped with a variable-area exhaust nozzle. Results presented indicate the effect of compressor-outlet bleedoff on performance at altitudes of 25,000 and 40,000 feet and a flight Mach number of 0.53. Variation of performance with bleedoff flow is indicated for operation with fixed- and variable-area exhaust nozzles. Tem… more
Date: August 7, 1950
Creator: Fleming, William A.; Wallner, Lewis E. & Wintler, John T.
Partner: UNT Libraries Government Documents Department
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Pressure-distribution and ram-recovery characteristics of NACA submerged inlets at high subsonic speeds

Description: Report presenting ram-recovery and mass-flow ratios for submerged inlets at four positions on the fuselage of a model of a hypothetical fighter airplane. Results related to the inlet location and effect of angle of attack are also provided.
Date: July 7, 1950
Creator: Frank, Joseph L.
Partner: UNT Libraries Government Documents Department
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The Calculation of the Path of a Jettisonable Nose Section

Description: Report presenting a method for calculating the path of a jettisonable nose section at any speed by means of successive approximations using static aerodynamic characteristics. Conditions for consideration, including the effect of stabilizing fins, are included in the calculations.
Date: September 7, 1950
Creator: Goodwin, Roscoe H.
Partner: UNT Libraries Government Documents Department
open access

Lateral-Control Investigation at a Reynolds Number of 5,300,000 of a Wing of Aspect Ratio 5.8 Sweptforward 32 Degrees at the Leading Edge

Description: Memorandum presenting the low-speed lateral control characteristics of a 32 degree sweptforward wing of aspect ratio 5.8 and NACA 65-series airfoil sections as determined in the 19-foot pressure tunnel. The investigation include the measurement of the hinge-moment and normal-force characteristics of an aileron and the rolling-effectiveness characteristics of the aileron and several configurations of spoilers.
Date: February 7, 1950
Creator: Graham, Robert R.
Partner: UNT Libraries Government Documents Department
open access

Effect of dihedral change on the theoretical dynamic lateral response characteristics of a low-aspect-ratio straight-wing supersonic airplane

Description: Memorandum presenting the results of a theoretical investigation of the lateral response and stability characteristics of the X-3 research airplane (Douglas Model No. 499D). Included are time histories calculated by a computer showing the effect of various disturbances on the lateral response of the airplane with 0 degrees geometric dihedral and -5 degrees dihedral.
Date: December 7, 1950
Creator: Heinle, Donovan R.
Partner: UNT Libraries Government Documents Department
open access

The Effect of Changes in the Leading-Edge Radius on the Aerodynamic Characteristics of a Symmetrical, 9-Percent-Thick Airfoil at High-Subsonic Mach Numbers

Description: Report of an investigation into the effect of leading-edge radius on the high-speed aerodynamic characteristics of a symmetrical, 9-percent-thick airfoil using three different airfoils at several Mach and Reynolds numbers. Information about the normal-force coefficients, drag coefficients, moment coefficients about the quarter chord, pressure-distribution diagrams, Schileren photographs, and a comparison with data obtained in other tunnels is included.
Date: August 7, 1950
Creator: Humphreys, Milton D. & Robinson, Raymond A.
Partner: UNT Libraries Government Documents Department
open access

Studies of the Metabolism of Certain Fission Products and Plutonium

Description: A short survey of some of the metabolic relationships of the elements, cerium, colurbium, plutonium, strontium, yttrium, and zirconium is presented. While the results of internally deposited radium have not been investigated in these experiments, they have been extensively studies by others. Because so much is known of its biological effects, it has been included in this historical survey.
Date: August 7, 1950
Creator: Kawin, Bergane; Copp, D. H. & Hamilton, J. G.
Partner: UNT Libraries Government Documents Department
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Summary of the Aerodynamic Characteristics and Flying Qualities Obtained from Flights of Rocket-Propelled Models of an Airplane Configuration Incorporating a Sweptback Inversely Tapered Wing at Transonic and Low-Supersonic Speeds

Description: From Summary: "Flight tests have been conducted on rocket-propelled models of an airplane configuration incorporating a sweptback wing with inverse taper to investigate the drag, stability, and control characteristics at transonic and supersonic speeds. The models were tested with a conventional tail arrangement in the Mach number range from 0.55 to 1.2. In addition to the various aerodynamic parameters obtained, the flying qualities were computed for a full-scale airplane with the center-of-gr… more
Date: September 7, 1950
Creator: Mitcham, Grady L. & Blanchard, Willard S., Jr.
Partner: UNT Libraries Government Documents Department
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An investigation of three transonic fuselage air inlets at Mach numbers from 0.4 to 0.94 and at a Mach number of 1.19

Description: Report presenting an investigation of three air inlets designed for use at transonic speeds conducted in the 8-foot high-speed tunnel. The basis of the design of the inlets was the use of a nose which was shaped so that substream velocities are maintained on its surface for high-speed operating conditions. Results regarding impact pressure recovery, external pressure distributions, wake-survey drag, supersonic external pressure drag, and design considerations are provided.
Date: November 7, 1950
Creator: Pendley, Robert E.; Robinson, Harold L. & Williams, Claude V.
Partner: UNT Libraries Government Documents Department
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Evaluation of Tributyl Phosphate in Jet Mixing Columns as a Solvent for Uranium Extraction From Slurry-Type Ore Feeds

Description: Technical report outlining the physical operability of 30% tributyl phosphate in a hydrocarbon dilutent for the extraction of uranium from more feed slurries. Operability had been satisfactorily demonstrated in jet mixing columns at the pilot plant of the Mallinckrodt Chemical Works. [From Abstract]
Date: December 7, 1950
Creator: Runion, T. C. & Yeager, J. H.
Partner: UNT Libraries Government Documents Department
open access

The effect of pile gas on tube block temperatures in {open_quotes}G{close_quotes} pile

Description: Helium, carbon dioxide, and helium-carbon dioxide mixtures are being considered for use as the pile gas in `G` pile. Coring the graphite tube block to provide a gas gap between the process tube centered in the graphite and the graphite tube block has been suggested as a means of maintaining high graphite temperatures in the tube blocks. It has been established that graphite damage during irradiation in minimized at high temperatures.
Date: April 7, 1950
Creator: Sega, C. A.
Partner: UNT Libraries Government Documents Department
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Preliminary studies of a continuous process for the thermal decomposition of uranyl nitrate hexahydrate

Description: At the request of the A.E.C., experiments were conducted on the continuous addition of liquid UNH to a bed of powdered UO{sub 3} in a gas heated pot in the Pot Room of Plant 6 to gather thermal data regarding the continuous decomposition of UNH and to make observations of the physical behavior of such a system. The thermal data indicate that the size and the energy requirements of the equipment required per pound of UO{sub 3} produced would be considerably smaller than for the present batch-wis… more
Date: December 7, 1950
Creator: Shelley, W.
Partner: UNT Libraries Government Documents Department
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Analysis of V-g data obtained from several naval airplanes

Description: From Introduction: "V-g records supplied the NACA by the Bureau of Aeronautics in 1948 and 1949 have provided additional material. These records are analyzed statistically in this report to the frequency of large values of acceleration and airspeed, and results are compared with the design requirements."
Date: July 7, 1950
Creator: Thornton, James O.
Partner: UNT Libraries Government Documents Department

[Layne Beaty embraces little girl]

Description: Photograph of reporter Layne Beaty and a little girl. Beaty is squatting down next to the little girl and she is kissing him on the cheek. In front of them sits a box that reads "WBAP, Fort Worth, TEX, USA."
Date: March 7, 1950
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[Layne Beaty kisses woman]

Description: Photograph of Layne Beaty embracing a woman at an airport. Beaty stands in front of staircase and kisses a woman who holds a child in her hands.
Date: March 7, 1950
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
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