Technical Report Archive & Image Library (TRAIL) - 11 Matching Results

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Development and Evaluation of High-Temperature Tungsten Alloys : Summary Report

Description: Abstract: "Tungsten-rich alloys, developed for use at temperatures up to 2000F, exhibit ductility, fabricability and joinability not found in commercially-available materials. An envelope type of microstructure was produced in compositions containing at least 90 wt% tungsten by liquid-phase sintering of cold-pressed powders in hydrogen. At room temperature the alloys could be rolled extensively, and tensile elongations up to 25% were noted. Strength properties of a W-Ni-Fe base were improved by… more
Date: November 12, 1959
Creator: Holtz, F. C. & Van Thyne, R. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Surge-Inception Study in a Two-Spool Turbojet Engine, Revised

Description: "A two-spool turbojet engine was operated in the Lewis altitude wind tunnel to study the inception of compressor surge. In addition to the usual steady-state pressure and temperature measurements, the compressors were extensively instrumented with fast-response interstage pressure transducers. Thus it was possible to obtain maps for both compressors, pressure oscillations during rotating stall, effects of stall on efficiency, and stage-loading curves" (p. 1).
Date: November 12, 1957
Creator: Wallner, Lewis E.; Lubick, Robert J. & Saari, Martin J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Summary Report [of Analytical Results from the HASL Strontium Program] August 1954

Description: This technical report includes (1) World-wide Network (Maps). (2) Fallout of Sr90 at selected sites during August. (3) Comparison of Sr90 collection by gummed paper and pot on the roof of HASL during August. (4) Sr90 contamination of cow's milk in Metropolitan New York. (5) Sr90 content of the upper air during April, May and June. (6) Total activity measurement of the upper air after the Castle Test series. (7) Sr90 content of tap water at HASL before the Castle Test series. (8) Sr90 content of… more
Date: November 12, 1954
Creator: U.S. Atomic Energy Commission. Health and Safety Laboratory. Analytical Branch.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Free Convection in the SIR Mark A Rotating Plugs

Description: This technical report is intended as a brief description of the free convection problem existing in the various annuli of the SIR Mark A rotating plugs. It is by no means a complete report of the plug "hot tests", but merely records some of the more significant experimental observations and presents a few of the theories and calculations made to explain the observed free convection phenomenon. The general discussion which follows is chronological. Details of analyses are relegated to the Appen… more
Date: November 12, 1953
Creator: Timo, D. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Investigations toward simplification of missile control systems

Description: Paper presenting three ideas regarding potential simplifications of missile-control systems in order to make them more reliable without sacrificing system performance. The three methods presented include an autorotating-vane spoiler, a bellows flap, and free controls. All are based on modified airplane control systems.
Date: November 12, 1953
Creator: Curfman, Howard J., Jr.; Strass, H. Kurt & Crane, Harold L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Method for Calculating the Lift and Center of Pressure of Wing-Body-Tail Combinations at Subsonic, Transonic, and Supersonic Speeds

Description: Report presenting a method for calculating the lift and pitching-moment characteristics of circular cylindrical bodies in combination with triangular, rectangular, or trapezoidal wings or tails through the subsonic, transonic, and supersonic speed ranges. A computing table and set of design charts are presented to reduce the calculations to routine operations. Information about lift, center of pressure, effects of wing incidence, and limitations and extensions of the method is provided.
Date: November 12, 1953
Creator: Nielsen, Jack Norman; Kaattari, George E. & Anastasio, Robert F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Method for Estimating the Rolling Moments Caused by Wing-Tail Interference for Missiles at Supersonic Speeds

Description: "A method is presented for estimating the rolling moments caused by wing-tail interference for missiles composed of wing-tail-body combination. The considerations involved in determining the structure of the downwash field behind lifting cruciform wing-body combinations and the rolling moment on cruciform wings of various plan forms induced by an infinite line vortex are discussed in detail. Computations of induced rolling moments for several missile designs are compared with experimental resul… more
Date: November 12, 1953
Creator: Edwards, Sherman & Hikido, Katsumi
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Preliminary Results of an Investigation of the Effects of Spinner Shape on the Characteristics of an NACA D-Type Cowl Behind a Three-Blade Propeller, Including the Characteristics of the Propeller at Negative Thrust

Description: Memorandum presenting an investigation conducted to determine the effects of spinner shape on the pressure-recovery characteristics of an NACA 1-series D-type cowl operating behind a three-blade single-rotation propeller. Two spinner shapes were considered, an NACA 1-series spinner and a modified spinner, more nearly conical than the 1 series.
Date: November 12, 1953
Creator: Reynolds, Robert M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Effects of a Small Jet of Air Exhausting From the Nose of a Body of Revolution in Supersonic Flow

Description: Report presenting the results of an investigation to determine the effects of a small jet of air exhausting from the nose of an elliptical body of revolution upon boundary-layer transition and the viscous, pressure, and total drag of the forebody at three body stations at Mach number 1.62. The jet effects on body pressure, pressure variations, boundary-layer transition, and total drag are provided.
Date: November 12, 1952
Creator: Love, Eugene S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Temperature distribution in an inhomogeneous cell

Description: Report describing "the effects of variable graphite conductivity and of the gas layers in the lattice" under the assumptions that "graphice conductivity varies as a power of the distance from the center of each cell" and "uniform distribution of heat sources" - from abstract.
Date: November 12, 1951
Creator: Triplett, John R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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