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A Summary and Analysis of Wind-Tunnel Data on the Lift and Hinge-Moment Characteristics of Control Surfaces Up to a Mach Number of 0.90

Description: Report presenting an extensive collection of lift and hinge-moment characteristics of control surfaces up to a Mach number of 0.90 in a high-speed wind tunnel. A wide variety of control-surface profiles, plan forms, and aerodynamic balances are included. Results regarding elevator hinge moments and longitudinal control, aileron hinge moments and lateral control, control-surface characteristics, and transonic flutter are highlighted.
Date: April 30, 1948
Creator: Axelson, John A.
Partner: UNT Libraries Government Documents Department
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Relation of Nozzle-Blade and Turbine-Bucket Temperatures to Gas Temperatures in a Turbojet Engine

Description: Memorandum presenting an investigation conducted to determine experimentally turbine-nozzle-blade and turbine-bucket temperatures in a turbojet engine and to correlate these temperatures with the gas temperatures. Data were obtained over the normal range of engine speeds and with two tail-pipe-nozzle areas. Results regarding basic data, turbine-nozzle-blade temperature distribution, turbine-bucket-temperature distribution, temperature distribution of gas at burner-outlet, turbine-bucket tempera… more
Date: April 30, 1948
Creator: Farmer, J. Elmo
Partner: UNT Libraries Government Documents Department
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Application of an ultraviolet spectrophotometric method to the estimation of alkylnaphthalenes in 10 experimental jet-propulsion fuels

Description: Report presenting the combustion efficiencies of 10 experimental jet-propulsion fuels that are approximately 200 degrees Fahrenheit cuts of five selected crudes available in large quantities in a turbojet engine combustor at altitude conditions.
Date: April 30, 1947
Creator: Cleaves, Alden P. & Carver, Mildred S.
Partner: UNT Libraries Government Documents Department
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Equations of State of Elements Based on the Generalized Fermi-Thomas Theory

Description: The Fermi-Thomas model has been used to derive the equation of state of matter at high pressures and at various temperatures. Calculations have been carried out both without and with the exchange terms. Discussion of similarity transformations lead to the virial theorem and to correlation of solutions for different Z-values.
Date: April 30, 1949
Creator: Feynman, R. P.; Metropolis, N. & Teller, E.
Partner: UNT Libraries Government Documents Department
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The Machinability of Beryllium

Description: The following report investigates the isolation of the cause of the unusual tool-wear rates found in machining beryllium as attributed to an inherent characteristic of beryllium, or an effect of inclusions in beryllium, as well as the evaluation of the comparative machinability of the various types of beryllium.
Date: April 30, 1949
Creator: Armstrong, E. T.; Dayton, Russell Wendt & Dawes, R. C.
Partner: UNT Libraries Government Documents Department
open access

Progress Report for the Month of April, 1947

Description: This report covers progress in chemical and spectrographic analysis, chemical work, beta-counting methods of analysis, and ore-dressing and pyrometallurgical studies.
Date: April 30, 1947
Creator: Center, E. J.; Nelson, H. R.; Pray, H. A. & Richardson, A. C.
Partner: UNT Libraries Government Documents Department

Newsmap. For the Armed Forces. 294th week of the war, 176th week of U.S. participation

Description: Front: Maps: Soviets Enter Berlin ; Pacific Allies Gain. Inset map: Berlin. Back: [text and ill.]: San Francisco Conference -- Geared to peace and progress -- International organization proposed at Dumbarton Oaks.
Date: April 30, 1945
Creator: [United States.] Army Service Forces. Army Information Branch.
Partner: UNT Libraries Government Documents Department
transcript

Duke Ellington, Medley of Hits, April 30, 1947

Description: Recording of a Duke Ellington medley of hits dated April 30, 1947, which is not listed in the Ellingtonia or Tom Lord discographies. The EllingtonWeb site places the band at the Paramount Theatre in New York at this time.
Date: April 30, 1947
Duration: 6 minutes 08 seconds
Creator: Ellington, Duke, 1899-1974
Partner: UNT Music Library
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