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Thickness of Bituminous Coal and Lignite Seams Mined in the United States in 1945

Description: Report issued by the U.S. Bureau of Mines discussing bituminous coal and lignite seams found in the United States. The thickness of seams from several U.S. states is compared, as well as the mining methods employed. This report includes maps, tables, and illustrations.
Date: December 1947
Creator: Young, W. H. & Anderson, R. L.
Partner: UNT Libraries Government Documents Department
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Evaluation of Gust and Draft Velocities from Flights of P-61C Airplanes within Thunderstorms July 12, 1947 to July 18, 1947 at Clinton County Army Air Field, Ohio

Description: The gust and draft velocities from records of NACA instruments installed in P-61c airplanes participating in thunderstorm flights at Clinton County Army Air Field, Ohio, from July 12, to July 18, 1947 are presented.
Date: December 8, 1947
Creator: Funk, Jack
Partner: UNT Libraries Government Documents Department
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Analytical Comparison of a Standard Turbojet Engine, a Turbojet Engine with a Tail-Pipe Burner, and a Ram-Jet Engine

Description: From Introduction: "Experimental investigations (reference 1) have shown that in some cases the thrust can be more than doubled by means of tail-pipe burning. A comparison is made of a standard turbojet engine, whose thrust is augmented by tail-pipe burning, and a ram-jet engine. The performance characteristics for the ram-jet engine were computed entirely from theoretical considerations and on the assumption that the burner-inlet velocity was constant."
Date: February 10, 1947
Creator: Krebs, Richard P. & Palasics, John
Partner: UNT Libraries Government Documents Department
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