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Relative loading on biplane wings

Description: Recent improvements in stress analysis methods have made it necessary to revise and to extend the loading curves to cover all conditions of flight. This report is concerned with a study of existing biplane data by combining the experimental and theoretical data to derive a series of curves from which the lift curves of the individual wings of a biplane may be obtained.
Date: February 15, 1933
Creator: Diehl, Walter S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Accumulation and Distribution of Radioactive Strontium, Barium-Lanthanum, Fission Mixture and Sodium in Goldfish

Description: This report details an experiment undergone to determine the amount of radioactive strontium, barium-lanthanum, fission mixture, and sodium accumulated by and distributed within non-feeding goldfish. The report includes tables detailing the findings.
Date: February 15, 1945
Creator: Prosser, C. Ladd (Clifford Ladd), 1907-2002; Pervinsek, William; Arnold, Jane; Svihla, George & Tompkins, P. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Preservation of Fluorescence Standards

Description: Report discussing the practice of using methyl methacrylate as a coating for platinium dishes in fluorescence method of uranium analysis. The experimental procedure described in this report to evaluate this practice indicates that the sample would be sufficiently protected from contamination and would not need to be stored in a desiccator.
Date: February 15, 1946
Creator: Grotta, H. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Calculation of Aerodynamic Forces on a Propeller in Pitch or Yaw

Description: Report presenting an analysis to determine the applicability of existing propeller theory and the theory of oscillating airfoils to the problem of determining the magnitude of the forces on propellers in pitch or yaw. The steady-state method for calculating propeller forces appears to give satisfactory results.
Date: February 15, 1949
Creator: Crigler, John L. & Gilman, Jean, Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Preparation of Samples of 42 Weight Percent U-Al Alloy for Pile Irradiation Tests

Description: Abstract: Processes are described for preparing small samples of 42 wt. % U-Al alloy (uranium enriched with U235) for pile irradiation studies. In the course of this work it was found that the size of the massive Al-U grains remains substantially unaltered during hot rolling.
Date: February 15, 1949
Creator: Smith, C. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Theoretical lift and damping in roll at supersonic speeds of thin sweptback tapered wings with streamwise tips, subsonic leading edges, and supersonic trailing edges

Description: "On the basis of linearized supersonic-flow theory, generalized equations were derived and calculations made for the lift and damping in roll of a limited series of thin sweptback tapered wings. Results are applicable to wings with streamwise tips and for a range of supersonic speeds for which the wing is wholly contained between the Mach cones springing from the wing apex and from the trailing edge of the root section. A further limitation is that the tip Mach lines may not intersect on the wi… more
Date: February 15, 1949
Creator: Malvestuto, Frank S., Jr.; Margolis, Kenneth & Ribner, Herbert S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Chemical Research Section Progress Report for January 1950

Description: The following documents are progress reports that follow chemical research studies in subjects such as ruthenium tetroxile distillations, extraction-scrub studies of zirconium and niobium, and oxidation of plutonium and stabilization of plutonium(VI) during extraction of IAF solutions.
Date: February 15, 1950
Creator: Albaugh, F. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Spin-Tunnel Investigation of a Model of a 60 Degree Delta-Wing Airplane to Determine the Spin, Recovery, and Longitudinal Trim Characteristics Throughout an Extensive Range of Mass Loadings

Description: Report presenting an investigation to determine the spin, recovery, and longitudinal-trim characteristics of a 60 degree delta-wing model through an extensive range of mass loadings. Variations in the relative density, center-of-gravity position, and inertia parameters were included in testing. Results regarding the single-vertical-tail and multiple-vertical-tail configurations are provided.
Date: February 15, 1950
Creator: Klinar, Walter J. & Jones, Ira P., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Effects of Furnance Pressures on Quality of Remelted Uranium : Final Report, Production Test 314-59-M

Description: The following report follows a test for remelting and casting uranium scrap specified that a pressure of 25 microns or less must be attained within the furnace before a charge is melted. The report was made to evaluate the effect of furnace pressures upon the quality if recast uranium metal.
Date: February 15, 1951
Creator: Kattner, W. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Energy Distribution of Fast Neutron Beam

Description: Experimental techniques are described for the spectral measurement of a collimated fast neutron beam. A hydrogen filled cloud chamber, proton recording nuclear plates, and threshold fission foils were used as neutron detectors in the measurements. As an application of the above technique, the energy distribution and absolute flux of the fast neutron beam emerging from port 5W of the Los Alamos fast rector has been measured from 0.1 Mev to 18 Mev. The result show a spectral curve possessing a ma… more
Date: February 15, 1951
Creator: Nereson, Norris G., 1918-2007
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Effect of Various Blade Modifications on Performance of a 16-Stage Axial-Flow Compressor 3 - Effect on Over-All Performance Characteristics on Increasing Stator-Blade Angles in Inlet Stages

Description: The stator-blade angles in the first four stages of a 16-stage axial-flow compressor were increased in order to decrease the angles of attack of these stages, and thereby to improve part-speed performance. The performance of this modified compressor was compared with that of the same compressor with original blade angles.
Date: February 15, 1952
Creator: Medeiros, Arthur A. & Hatch, James E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Lift, drag, and pitching moment of low-aspect-ratio wings at subsonic and supersonic speeds: An investigation at large Reynolds numbers of the low-speed characteristics of several wing-body combinations

Description: Report presenting an investigation of several wing-body combinations with wings suitable for supersonic interceptor-type aircraft at high Reynolds numbers and low Mach numbers. Nine wing-body combinations were tested with three different wing aspect ratios and three different plan forms. Results regarding the lift, drag, and pitching moment are provided.
Date: February 15, 1952
Creator: Smith, Donald W.; Shibata, Harry H. & Selan, Ralph
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Some effects of side-wall modifications on the drag and pressure recovery of an NACA submerged inlet at transonic speeds

Description: Report presenting comparative drag and pressure recovery for an NACA submerged inlet and two side-wall modifications. One afterbody and diffuser were used for all tests and testing was conducted over a range of Mach numbers. The two modified inlets were found to be superior to the standard inlet from the standpoint of pressure recovery.
Date: February 15, 1952
Creator: Taylor, Robert A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Wind-Tunnel Investigation of the Effects of Various Asymmetric Canopy Modifications on the Behavior of Descending Parachutes

Description: Report presenting an investigation in the free-spinning tunnel to study the behavior in descent of hemispherical and quasi-conical parachutes, some with symmetrical canopy modifications and all with a right circular cylinder suspended by one end below the parachute. Results indicated that a lateral flight component during descent could be obtained by using a circular cutout in the side of the canopy of a hemispherical parachute and a large slit between two panels of a quasi-conical parachute.
Date: February 15, 1952
Creator: Scher, Stanley H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Surface Tension of Aqueous Uranyl Sulfate Solutions Between 20' And 75'C

Description: The surface tension of aqueous uranyl sulfate solutions, ranging in concentration from 0.175 molal to 2.340 molal, has been measured at 20', 30', 45', 60' and 75'C. The surface tension increases continually with increasing temperature, becoming in the most concentrated solutions about six percent greater than that for water at the same temperature.
Date: February 15, 1953
Creator: Barnett, M. K. & Jegart, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Alpha Half-Life of the Isotope Pu-241

Description: A plutonium solution of known Pu-241 content was purified by solvent extraction techniques to remove uranium and americium impurities. Portions of this purified solution were then analyzed for U-237 as a function of time. Since the growth of U-237 occurs directly by the alpha decay of Pu-241, these measurements provided sufficient data for calculation of the Pu-241 alpha half-life, which was found to be 2.91 ± 0.50 x 10⁵ years.
Date: February 15, 1955
Creator: Gift, M. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Investigation of the Lateral Stability Characteristics of the Douglas X-3 Configuration at Mach Numbers From 0.6 to 1.1 by Means of a Rocket-Propelled Model

Description: Report presenting an investigation of a rocket-propelled model of the Douglas X-3 airplane in order to determine the lateral stability characteristics at zero angle of attack and to evaluate test and analysis technique. Results regarding time histories, lateral trim characteristics, general characteristics of lateral oscillation, and lateral stability derivatives are provided.
Date: February 15, 1955
Creator: Mitchell, Jesse L. & Peck, Robert F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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On the Kernel function of the integral equation relating lift and downwash distributions of oscillating wings in supersonic flow

Description: From Summary: "This report treats the Kernel function of the integral equation that relates a known or prescribed downwash distribution to an unknown lift distribution for harmonically oscillating wings in supersonic flow. The treatment is essentially an extension to supersonic flow of the treatment given in NACA report 1234 for subsonic flow. For the supersonic case the Kernel function is derived by use of a suitable form of acoustic doublet potential which employs a cutoff or Heaviside unit f… more
Date: February 15, 1955
Creator: Watkins, Charles E. & Berman, Julian H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Static longitudinal and lateral stability data from an exploratory investigation at Mach number 4.06 of an airplane configuration having a wing of trapezoidal plan form

Description: Report presenting an investigation to determine the static longitudinal and lateral stability characteristics of an airplane configuration with a trapezoidal wing with modified hexagonal airfoil section and a cruciform tail with 5 degree semiangle wedge section. Data were obtained at a range of angles of attack and sideslip.
Date: February 15, 1955
Creator: Dunning, Robert W. & Ulmann, Edward F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Absorption by Soil of Strontium From 216-S Crib Waste

Description: A preliminary soil column experiment with a waste sample from the 207-S-11 well, which monitors the 216-S cribs, indicated that cesium was absorbed almost completely by the soil but that strontium breakthrough to ground water in the near future seemed likely. Accordingly, it was suggested that the 216-S wastes be discharged to a new disposal site, and that samples of the wastes which are currently being discharged to the 216-S cribs be obtained for soil absorption tests. The primary purpose of … more
Date: February 15, 1956
Creator: Rhodes, D. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Echelle Spectroscopy. Seventeenth Quarterly Progress Report

Description: This is the seventeenth quarterly report on our echelle project, as numbered above. Our work this quarter has to some extent been directed towards the Spectroscopy Symposium held at Argonne National Laboratory on February 15, 16, and 17. This report consists principally of brief abstracts of the two papers given at this meeting. Progress since the last quarterly report included completion of the echelle comparator calibration, and the successful production and photographing of the desired spect… more
Date: February 15, 1956
Creator: Harrison, George Russell, 1898-1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fabrication Procedure For RaLa Source Fuel Rods

Description: A new method to procure RaLa sources was proposed by Group CMR-10, Los Alamos Scientific Laboratory. This method depended upon irradiation of small-diameter U235 wire in the Materials Testing Reactor, Arco, Idaho. A procedure for cladding and sealing U235 wire in stainless steel tubing, by drawing, plugging the tube ends, and welding, was developed, tested, and proved to be satisfactory.
Date: February 15, 1956
Creator: Hockett, J. E.; Duncan, J. D.; Doll, D. T. & Taub, J. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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