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Plate Efficiency in the Exchange of Deuterium Between Ammonia and Hydrogen

Description: Technical report outlining measurements of the equilibrium in the exchange of deuterium between ammonia and hydrogen and of the kinetics of this reaction. Details a series of tests carried out to measure Murphree plate efficiencies.
Date: December 3, 1951
Creator: Perlman, Morris L. & Bigeleisen, Jacob
Partner: UNT Libraries Government Documents Department
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A Simplified Instrument for Recording and Indicating Frequency and Intensity of Icing Conditions Encountered in Flight

Description: Memorandum presenting an instrument for recording and indicating the frequency and intensity of aircraft icing conditions to obtain statistical icing data over worldwide air routes during routine airline operations. Data of this type is needed to provide pertinent meteorological information necessary for the optimum design of ice-protection systems. The features that make this particular instrument desirable include the simplicity of operation, freedom from maintenance and operating problems, a… more
Date: July 3, 1951
Creator: Perkins, Porter J.; McCullough, Stuart & Lewis, Ralph D.
Partner: UNT Libraries Government Documents Department
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Elevated Temperature Properties of Titanium Carbide Base Ceramals Containing Nickel or Iron

Description: Elevated-temperature properties of titanium carbide base ceramals containing nickel or iron were determined in oxidation, modulus of rupture, tensile strength, and thermal-shock resistance. These materials followed the general growth law and exhibited two stages in oxidation. The following tensile strengths were found at 2000 degrees F: 13.3 weight percent nickel, 16, 150 pounds per square inch; 11.8 weight percent iron, 12,500 pounds per square inch; unalloyed titanium carbide, 16,450 pounds p… more
Date: December 3, 1951
Creator: Cooper, A. L. & Colteryahn, L. E.
Partner: UNT Libraries Government Documents Department
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Properties of Low-Carbon N-155 Alloy Bar Stock From 1200 to 1800 Degrees Fahrenheit

Description: Memorandum presenting the results of an investigation to establish rupture and total-deformation strengths at 1200 and 1800 degrees Fahrenheit for typical commercial treatments of low-carbon N-155 alloy. The results show that there were large differences in strength between the heats of bar stock at temperatures above 1200 degrees Fahrenheit except when a 2200 degree Fahrenheit solution treatment was used.
Date: May 3, 1951
Creator: Freeman, J. W. & White, A. E.
Partner: UNT Libraries Government Documents Department
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Status of combustion research on high-energy fuels for ram jets

Description: Report presenting a review of the present status of research and development on high-energy fuels for ramjet propulsion. It also presents experimental investigations on the use of high-energy fuels in ram jets that include the materials aluminum, boron, boron hydrides, carbon, coal and coal-light metal compositions, liquid hydrogen, and magnesium. A comparison of the fuels in terms of heating values, combustion temperatures and specific impulse, and availability of fuels are provided.
Date: October 3, 1951
Creator: Olson, Walter T. & Gibbons, Louis C.
Partner: UNT Libraries Government Documents Department
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A simplified instrument for recording and indicating frequency and intensity of icing conditions encountered in flight

Description: "An instrument for recording and indicating the frequency and intensity of aircraft icing conditions encountered in flight has been developed by the NACA Lewis Laboratory to obtain statistical icing data over world-wide air routes during routine airline operations. The operation of the instrument is based on the creation of a differential pressure between an ice-free total-pressure system and a total-pressure system in which small total-pressure holes vented to static pressure are allowed to pl… more
Date: July 3, 1951
Creator: Perkins, Porter J.; McCullough, Stuart & Lewis, Ralph D.
Partner: UNT Libraries Government Documents Department
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Analytical investigation of flow through high-speed mixed-flow turbine

Description: From Introduction: "Good experimental correlation of the analytical results was obtained for the compressor even though isentropic flow and axial symmetry were assumed (reference 1). In order to determine the flow through the turbine being investigated, however, it was necessary to extend the method of reference 1 to include the flow downstream of the rooter since the large blade taper and hub-shroud curvature caused downstream conditions which affected the flow inside the rotor."
Date: October 3, 1951
Creator: Stewart, Warner L.
Partner: UNT Libraries Government Documents Department
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The static longitudinal characteristics at Mach numbers up to 0.95 of a triangular-wing canard model having a triangular control

Description: Report presenting the longitudinal stability and control of a canard model employing a triangular wing of aspect ratio 2 and a control surface of identical plan form at Mach numbers up to 0.95. The fixed control surface was effective in producing pitching moments at angles of incidence up to 10 degrees. Results regarding the static longitudinal characteristics, control-surface effectiveness, stability and effectiveness derivatives, and evaluation of the split flap effectiveness are provided.
Date: December 3, 1951
Creator: Stephenson, Jack D. & Selan, Ralph
Partner: UNT Libraries Government Documents Department
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Fundamental Flame Velocities of Pure Hydrocarbons 3: Extension of Tube Method of High Flame Velocities - Acetylene-Air Mixtures

Description: Memorandum presenting an extension of the tube method of measuring flame velocities to fundamental flame velocities of 141 centimeters per second. The extension was accomplished by reducing the flame-tube diameter from 25 to 12.5 millimeters. Results regarding the gas flow and spatial flame velocity, flame surface area, and fundamental flame velocity are provided.
Date: December 3, 1951
Creator: Levine, Oscar & Gerstein, Melvin
Partner: UNT Libraries Government Documents Department
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Free-Flight Investigation to Determine Force and Hinge-Moment Characteristics at Zero Angle of Attack of a 60 Degrees Sweptback Half-Delta Tip Control on a 60 Degrees Sweptback Delta Wing at Mach Numbers Between 0.68 and 1.44

Description: Report presenting a free-flight investigation of two rocket-powered control research models to determine the force and hinge-moment characteristics at zero angle of attack of a half-delta tip control on a delta wing. Results regarding the control hinge moments, control normal force, and calculated hinge moments are provided.
Date: December 3, 1951
Creator: Martz, C. William; Church, James D. & Goslee, John W.
Partner: UNT Libraries Government Documents Department
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Interferometer With Large Working Field Utilizing Schlieren Optics

Description: Report describing the optical system of a new-type interferometer utilizing schileren optics. Using this instrument, former limits to the working-field size imposed by the practical size of conventional topics are removed. Testing using the interferometer occurred in the 18- by 18-inch supersonic tunnel.
Date: January 3, 1951
Creator: Buchele, Donald R. & Day, Pierce B.
Partner: UNT Libraries Government Documents Department
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A comparison of the experimental and theoretical loading over triangular wings at supersonic speeds

Description: Report presenting the results of an experimental investigation of the pressure distribution over two triangular wings at supersonic speeds. The two wings which were tested had identical plan forms, 45 degrees of sweepback of the leading edge, and an aspect ratio of 4.0, but different airfoil sections. Results regarding the pressure distribution at zero lift, flow characteristics and pressure distribution at angles of attack, normal-force coefficients, and application of results to other triangu… more
Date: January 3, 1951
Creator: Boyd, John W. & Phelps, E. Ray
Partner: UNT Libraries Government Documents Department
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A Comparison of Two Techniques Utilizing Rocket-Propelled Vehicles for the Determination of the Damping-in-Roll Derivative

Description: Report presenting rocket-powered flight investigations for the purpose of comparing damping-in-roll results obtained from a torque-nozzle technique. Results regarding basic aerodynamic quantities, data from the torque-nozzle technique, wing-dropping phenomenon, and comparison of the values of the two techniques are provided.
Date: May 3, 1951
Creator: Stone, David G. & Sandahl, Carl A.
Partner: UNT Libraries Government Documents Department
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The Valve-Actuated Pulse Column Design and Operation

Description: The following report describes a countercurrent extraction column, which employs timed solenoid valves and pressurized feeds to provide a pulsing action to disperse the phases. This report further describes the 4-stage cycle of the column operation.
Date: December 3, 1951
Creator: Burger, L. L.
Partner: UNT Libraries Government Documents Department
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Memo on process water refrigeration: A current evaluation, 100 F, D, and DR Areas

Description: The policy of operating the Hanford Piles at the highest level attainable under existing standards has resulted in pile levels` being occasionally limited by maximum permissible exit water temperatures. The practicability of using refrigeration to reduce the inlet water temperature during peak periods and so increase pile levels has been reviewed and is discussed in this document.
Date: July 3, 1951
Creator: Nelson, S. L.
Partner: UNT Libraries Government Documents Department
open access

Displaced Atom Densities in Cyclotron Irradiated Metals

Description: From introduction: "The purpose of this report is to present some design and construction data for automatic titrators."
Date: December 3, 1951
Creator: Brooks, F. C.
Partner: UNT Libraries Government Documents Department
open access

The Coulometric Determination of Uranium

Description: The following report describes a study that was made to adapt a redox method that oxidizes uranium(IV) to uranium(VI) by ferric ion into a microcoulometric method.
Date: December 3, 1951
Creator: Carson, W. N., Jr.
Partner: UNT Libraries Government Documents Department
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Gamma Ray Measurements at the BSR, Experiment II, Iron - Water

Description: This report provides a table that summarizes the data taken from investigations of gamma radiation of the Bulk Shielding Reactor in an iron-water mixture. The results are plotted on a graph also provided in this document.
Date: May 3, 1951
Creator: Ballweg, L. H.
Partner: UNT Libraries Government Documents Department
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Determination of Uranium in Aluminum-Silicon Alloys

Description: The following report describes methods developed for determination of uranium in the alloy.
Date: December 3, 1951
Creator: Kinderman, Edwin Max, 1916- & Jones, M. M.
Partner: UNT Libraries Government Documents Department
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Production Test 231-10 Supplement B process evaluation-production of concentrated plutonium nitrate solution in Building 231: Transfer to and processing in Building 234-5. Final report

Description: All of the 231 Building final product was prepared for off-site shipment prior to the startup of the 234-5 Building. The evaporator (S-1) effluent, a solution approximately 10 molar in nitric acid with plutonium concentration of 275 grams/liter, was dried within the shipping container (sample can) to a solid cake. The purpose of this drying operation was to minimize personnel contamination and/or loss of product during shipment. The dried cake was redissolved in water before further purificatio… more
Date: October 3, 1951
Creator: Kerr, W.B.
Partner: UNT Libraries Government Documents Department
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100 Areas technical activities report - physics, July 1951

Description: This is the monthly 100 areas technical activities report for the physics group for the month of July 1951. This group was concerned with pile related studies. Work discussed includes neutron attenuation measurements in pile shielding test facilities, studies of physical properties of shielding materials (concrete), work on a xenon generator and separation facility, further development and shielding work for a neutron spectrometer, continued work on a magnetic spectrometer, and counting equipme… more
Date: August 3, 1951
Partner: UNT Libraries Government Documents Department
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Altitude Performance of J35-A-17 Turbojet Engine in an Altitude Chamber

Description: "An investigation of the altitude performance characteristics of an Allison J35-A-17 turbojet engines have been conducted in an altitude chamber at the NACA Lewis laboratory. Engine performance was obtained over a range of altitudes from 20,000 to 60,000 feet at a flight Mach number of 0.62 and a range of flight Mach numbers from 0.42 to 1.22 at an altitude of 30,000 feet. The performance of the engine over the range investigated could be generalized up to an altitude of 30,000 feet" (p. 1).
Date: January 3, 1951
Creator: Vincent, K. R. & Gale, B. M.
Partner: UNT Libraries Government Documents Department
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