56 Matching Results

Search Results

Results: 1 - 24 next
open access

Aerodynamics of the carburetor air scoop and the engine cowling of a single-engine torpedo-bomber-type airplane

Description: From Introduction: "An investigation of the power-plant installation of a single-engine torpedo-bomber-type airplane has been conducted in the NACA Cleveland altitude wind tunnel at the request of the Bureau of Aeronautics, Navy Department. A similar investigation was previously conducted on a three-tenths scale mock-up of the forward portion of the fuselage of this airplane in the Langley 20-foot tunnel. (See reference 1)."
Date: June 1946
Creator: Palter, Herman
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Bragg Reflection of Neutrons by a Single Crystal

Description: From cover page: This document has been assigned the above MDDC (Manhattan District Declassification) number, as given in the List of Declassified Documents issued semi-monthly by the Research Division, Manhattan District. In the case of Los Alapnos reports, LADC (Los Alamos Declassification) numbers are listed on the title page if known. This declassified document may differ materially from the original classified document by reason of deletions necessary to accomplish declassification. Hence,… more
Date: June 14, 1946
Creator: Zinn, Walter H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Chemical Effects of Nuclear Transformations

Description: This technical report is divided into two sections addressing two different chemical effects of nuclear transformations. The first section discusses the beta decay of lanthanum to cerium. The second section discusses the beta decay of selenium to bromine.
Date: June 6, 1946
Creator: Coryell, Charles D. (Charles Du Bois), 1912-1971; Gest, H.; Edwards, R. R. & Davies, T. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Clamped Long Rectangular Plate Under Combined Axial Load and Normal Pressure

Description: Note presenting a solution for the buckling load and load carried after buckling of a clamped rectangular plate with a width-length ratio of 1:4 under combined normal pressure and axial load. The results indicate that normal pressure causes a smaller increase in the buckling load of plates with clamped edges than of plates with simply supported edges.
Date: June 1946
Creator: Woolley, Ruth M.; Corrick, Josephine N. & Levy, Samuel
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Comparative Effectiveness of a Convection Type and a Radiation-Type Cooling Cap on a Turbosupercharger

Description: Note presenting an investigation to compare the effectiveness of two basic methods of cooling a turbosupercharger and to obtain data on the temperature level and distribution in the turbine wheel. Turbine-wheel temperatures were obtained for various conditions of cooling-air mass flow, exhaust-gas temperature, and exhaust-gas mass flow. Modified forms of the standard cooling caps were used to allow for the installation of temperature-measuring devices.
Date: June 1946
Creator: Hartwig, Frederick J., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Consideration of Dynamic Loads on the Vertical Tail by the Theory of Flat Yawing Maneuvers

Description: "Dynamic yawing effects on vertical tail loads are considered by a theory of flat yawing maneuvers. A comparison is shown between computed loads and the loads measured in flight in a fighter airplane. The dynamic effects were investigated on a large flying boat for both an abrupt rudder deflection and a sinusoidal rudder deflection" (p. 1).
Date: June 1946
Creator: Boshar, John & Davis, Philip
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A correlation of loadings and afterbody length-beam ratios of various flying-boat hulls

Description: "The gross weight, beam, and afterbody length of 12 contemporary flying boats and amphibians with pointed afterbodies are tabulated and correlated. For most of the hulls considered, the afterbody length-beam ratios are shown to be directly proportion to the gross-load coefficients" (p. 1).
Date: June 1946
Creator: Parkinson, John B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Correlation of the Effects of Compression Ratio and Inlet-Air Temperature on the Knock Limits of Aviation Fuels in a CFR Engine 2

Description: Report presenting the knock-limited performance of nine fuels comprising isolated members of four classes of hydrocarbons in the form of three-dimensional plots of fuel-air ratio, compression temperature, and compression-air density.
Date: June 1946
Creator: Alquist, Henry E.; O'Dell, Leon & Evvard, John C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effect of a low-loss air valve on performance of a 22-inch-diameter pulse-jet engine

Description: Report presenting the performance of a 22-inch-diameter pulse-jet engine using a net of low-loss modified air valves at ram pressures equivalent to simulated flight speeds. Results regarding combustion-air weight flow, flight thrust, maximum combustion-chamber pressure, specific fuel consumption, pressure cycle, and valve life are provided.
Date: June 1946
Creator: Bressman, Joseph R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Effect of Liquid and Ice Particles on the Erosion of a Supercharger-Inlet Cover and Diffuser Vanes

Description: Report discussing the results of accelerated erosion tests to determine the separate effects of the passage of fuel, water, and ice particles through a supercharger. Recommendations for preventing erosion are provided, including materials choice and joint design.
Date: June 1946
Creator: Rollin, Vern G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The effect of simulated icing on propeller performance

Description: Testing of a 10-foot-diameter three-blade Curtiss 89301-15 propeller with Clark Y blade sections was conducted in the 16-foot high-speed tunnel to determine the effect of simulated ice on the aerodynamic characteristics of the propeller. The propellers were tested on a 2000-horsepower dynamometer at rotational speed 1800 rpm at several blade angles and airspeeds. Results regarding the effect of icing and constant-power propeller operation are provided.
Date: June 1946
Creator: Corson, Blake W., Jr. & Maynard, Julian D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An Empirical Equation for the Coefficient of Heat Transfer to a Flat Surface From a Plane Heated-Air Jet Directed Tangentially to the Surface

Description: Note presenting an investigation of the heat transfer to a surface from plane heated-air jets discharged tangentially to the surface to provide heat-transfer relationships required in the design of heated-air jet installations for aircraft windshield fog prevention. Experimental temperature, velocity, and heat-transfer data were obtained by tests in which the initial jet temperature and velocity were varied.
Date: June 1946
Creator: Zerbe, John & Selna, James
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An Empirical Equation for the Coefficient of Heat Transfer to a Flat Surface From a Plane Heated-Air Jet Directed Tangentially to the Surface

Description: Note presenting an investigation of the heat transfer to a surface from plane heated-air jets discharged tangentially to the surface was conducted to provide heat-transfer relationships required in the design of heated-air jet installations for aircraft windshield fog prevention. Experimental temperature, velocity, and heat-transfer data were obtained by tests in which the initial jet temperature and velocity were varied.
Date: June 1946
Creator: Zerbe, John & Selna, James
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Flight Investigation at High Speeds of the Drag of Three Airfoils and a Circular Cylinder Representing Full-Scale Propeller Shanks

Description: "Tests have been made at high speeds to determine the drag of models, simulating propeller shanks, in the form of a circular cylinder and three airfoils, the NACA 16-025, the NACA 16-040, and the NACA 16-040 with the rear 25 percent chord cut off. All the models had a maximum thickness of 4 1/2 inches to conform with average propeller-shank dimensions and a span of 20 1/4 inches. For the tests the models were supported perpendicular to the lower surface of the wing of an XP-51 airplane (p. 277). more
Date: June 7, 1946
Creator: Barlow, William H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Flight Measurements by Various Methods of the Drag Characteristics of the XP-51 Airplane

Description: Report discussing measurements of the overall drag coefficient of the XP-51 in dives using three different methods. The three instruments used to measure drag variation are compared for accuracy. A comparison of the drag results obtained from this test are also compared to the results obtained from previous wind tunnel testing.
Date: June 1946
Creator: Pearson, Henry A. & Beadle, Dorothy E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Geochemistry of Beryllium

Description: From abstract: This is a review, with annotated bibliography, of the mode of occurrence of the element beryllium. It is not a list of specific ore deposits, but a summary of the types of the types of minerals and rocks in which beryllium has been reported to occur. In addition, the unpublished spectrographic studies of the Geological Survey on mill products are summarized, and data are given on domestic production and reserves and on foreign production.
Date: June 1946
Creator: Fleischer, Michael & Cameron, E. N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Geochemistry of Columbium and Tantalum

Description: From abstract: "This is a review, with annotated bibliography, of the mode of occurrence of the elements columbium and tantalum. It is not a list of specific ore deposits, but a summary of the types of minerals and rocks in which these elements have been reported to occur. In addition, the unpublished spectrographic studies of the Geological Survey are summarized, best sources for columbium and tantalum are indicated, and suggestions are made for further investigation."
Date: June 1946
Creator: Fleischer, Michael, 1908-1998 & Harder, James O.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Geochemistry of Indium

Description: Abstract" This is a review, with annotated bibliography, of the mode of occurrence of the element indium. It is not a list of specific ore deposits, but a summary of the types of minerals and rocks in which indium has been reported to occur. In addition, the unpublished spectrographic studies of the Geological Survey on mill and smelter products are summarized, best sources of indium are indicated, and suggestions are made for further investigations. Indium has been found to occur most abund… more
Date: June 1946
Creator: Fleischer, Michael, 1908-1998 & Harder, James Otto.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

High Temperature Refractories for Uranium

Description: Abstract: "Experiments are described wherein uranium metal was heated in ten different refractory materials under conditions approximating those of the uranium J. The refractory crucibles containing the uranium were placed in graphite crucibles and heated in vacuum for four hours at 1800-1850 C by means of an induction furnace. MgO, W, and TiH were found to be unacceptable containers for uranium at these temperatures. BeO, ThO2 and Un showed some reaction with the uranium, whereas UO2, ZrH, CeS… more
Date: June 3, 1946
Creator: Hoff, R. L.; Sausville, J. W. & Larson, Clarence E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen