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Results of Assays of the New Albany Oil-Shale

Description: Report issued by the U.S. Bureau of Mines on a survey of the New Albany oil-shale deposits in Indiana. The experimental procedures for surveying and sampling these shale deposits are presented in detail. This report includes tables, and graphs.
Date: June 1923
Creator: Reeves, John R.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Results of Electrical Resistivity and Electrical Induction Measurements at Abana Mine, Quebec, Canada: Explanation of Some Factors Associated with Induction Method

Description: Technical paper issued by the Bureau of Mines over studies conducted on electrical resistivity at the Abana Mine in Quebec. The methods used, and results of the studies are discussed. This paper includes tables, maps, and illustrations.
Date: 1931
Creator: Potter, E. Vernon & Lee, F. W.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Results of experimental flights at high altitudes with Daimler, Benz and Maybach engines to determine mixture formation and heat utilization of fuel

Description: The experimental flights described herein were made with the object of obtaining information regarding the following two questions, which as yet have not been sufficiently elucidated. These are: 1. What effect has altitude upon the formation of the mixture? 2. What alteration takes place, with increasing altitude, in the utilization of the heat contained in the fuel?.
Date: January 1, 1923
Creator: Kutzbach, K
Item Type: Report
Partner: UNT Libraries Government Documents Department

Results of experiments with slotted wings

Description: This report recounts some of the successful experiments conducted in England and Germany on slotted wings and ailerons. Wind tunnel test results are given and examples of aircraft constructed with these new wing components are described.
Date: October 1, 1924
Creator: Lachmann, G
Item Type: Report
Partner: UNT Libraries Government Documents Department

Results of extended tests of the Focke-Wulf F 19a "ente," a tail-first airplane

Description: These investigations consisted chiefly of measurements of the take-off distance under various starting conditions and with the c.g. in different positions; of the climbing speed as a function of the impact pressure and location of the c.g.; of the longitudinal stability and fore-and-aft controllability and of the determination of the elevator forces and characteristics of the elevator control.
Date: September 1, 1933
Creator: Hubner, Walter
Item Type: Report
Partner: UNT Libraries Government Documents Department

Results of Flight Test of an Automatically Stabilized Model C (Swept Back) Four-Wing Tiamat

Description: The results of the first flight test of a swept-back four-wing version of Tiamat (MX-570 model C) which was launched at the NACA Pilotless Aircraft Research Station at W4110PB Island, Va. are presented. In general, the flight behavior was close to that predicted by calculations based an stability theory and oscillating table tests of the autopilot. The flight test thus indicates that the techniques employed to predict automatic stability are valid and practical from an operational viewpoint. The limitations of the method used to predict flight behavior arise from the fact that the calculations assume no coupling among roll, pitch, and yaw, while in actual flight some such coupling does exist.
Date: June 11, 1947
Creator: Seacord, Charles L., Jr. & Teitelbaum, J. M.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Results of flight tests to determine drag of parabolic and cone-cylinder bodies of very large fineness ratios at supersonic speeds

Description: Results of a free-flight investigation at supersonic speeds to determine zero-lift drag of a series of bodies of revolution are presented. Configurations tested included two parabolic bodies with fineness ratios of 17.78 and 24.5 and two 8 degree cone-cylinder bodies with fineness ratios of 17.2 and 21.2. Results of previous tests of similar parabolic bodies but with lower fineness ratios are included in this paper for comparison. All bodies for which data are presented in this paper had a base-to-maximum-diameter ratio of 0.437. Calculated drag coefficients are shown for all bodies for which data are presented. (author).
Date: August 30, 1951
Creator: Welsh, Clement J & Demoraes, Carlos A
Item Type: Report
Partner: UNT Libraries Government Documents Department