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High-Speed Wind-Tunnel Tests of Semispan Horizontal Tails With Fabric-Covered and Metal-Covered Elevators for a Bomber Airplane

Description: "This report contains the results of tests of a full-scale semispan horizontal tail plane of a bomber airplane. The effects of fabric distortion on the aerodynamic characteristics of the elevator are determined by comparing the aerodynamic characteristics of a fabric-covered elevator with those of a metal-covered elevator. In addition, the results of cutting holes in the balance seal, the effect of fixing transition, the tab effectiveness both sealed and unsealed, and the section drag of this t… more
Date: December 18, 1944
Creator: Erickson, Albert L. & Nelson, Warren H.
Partner: UNT Libraries Government Documents Department
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Flight Tests of the High-Speed Performance of a P-51B Airplane (AAF No. 43-12105)

Description: Report discussing testing to check the improvement of 3 or 4 miles per hour in the maximum speed of the P-51B airplane as a result of sealing the wing-gun access doors and flap-spar lightening holes. Large variations in speed were observed during testing, so additional testing and analysis was carried out to determine the effects of various factors that were suspected of contributing to the inconsistency of the plane's performance.
Date: December 18, 1944
Creator: Voglewede, T. J. & Danforth, E. C. B.
Partner: UNT Libraries Government Documents Department

Newsmap. For the Armed Forces. 275th week of the war, 157th week of U.S. participation

Description: Front: Text describes action on various war fronts: Western front battle, Pressure on Budapest, German attack in Italy, Ormoc Falls: B-20s active, Far Eastern front. Maps: European front, The Saar, Hungarian front, Pacific action, Leyte area. Back: Text highlights "Preventive Maintenance" and describes the need to take care of ordnance equipment and "keep 'em rolling." Illustrations of 18 types of mobile ordnance are labeled.
Date: December 18, 1944
Creator: [United States.] Army Service Forces. Army Information Branch.
Partner: UNT Libraries Government Documents Department
open access

The Thermal Conductivity of Uranium

Description: Abstract. The thermal conductivity of uranium as a function of temperature is measured by comparing its conductivity with that of a sample of brass. An absolute measurement is then made of the conductivity of the brass sample. The thermal conductivities as a function of temperature of two samples of extruded uranium rod are given.
Date: December 18, 1944
Creator: Kratz, H. R. & Raeth, C. H.
Partner: UNT Libraries Government Documents Department
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