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Analysis of two-stage-turbine efficiency characteristics in terms of work and speed requirements

Description: From Introduction: "In this report two-stage-turbine efficiency characteristics are analyzed as a function of work and speed requirements in terms of the effect of changing the required mean-section velocity diagram. The fundamental assumptions and limits used in reference 2 and 3 are also used herein."
Date: August 30, 1957
Creator: Stewart, Warner L. & Wintucky, William T.
Partner: UNT Libraries Government Documents Department
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The Application of Pulsed Neutron Sources to Criticality Measurements

Description: Abstract: Experimentally measured promp-neutron decay constants for sub-critical systems are of considerable value as normalization data for calculations of prompt-neutron time constants. A method of measuring these decay constants with a pulsed neutron source, neutron detector and multi-channel time-delay analyzer has been developed and used on a number of fast-spectrum subcritical systems. An analysis of this method based on the one-energy group, one-delayed-neutron group reactor kinetic equa… more
Date: January 30, 1957
Creator: Passell, Lawrence; Bengston, Joel & Blair, Donald C.
Partner: UNT Libraries Government Documents Department
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Bibliography

Description: From abstract: This bibliography consists of references pertaining to "Effects of Nuclear Radiation Upon Electronic and Electrical Components", and to "Electronic and Electrical Components for Critical Environments". References were compiled from the Classified and Unclassified report literature and the published literature. The following indexes and abstract journals were used: Weapons Data Index, AEC Card Catalog, Engineering Index (1950-55), and Office of Technical Services, Research Reports… more
Date: April 30, 1957
Creator: Frost, Frederick E.
Partner: UNT Libraries Government Documents Department
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Component Performance Investigation of J71 Experimental Turbine 9 - Effect of First-Stator Adjustment;Internal Flow Conditions of J71-97 Turbine With 87-Percent-Design Stator Area

Description: "An experimental radial-survey investigation of the J71-97 three-stage turbine equipped with a first stator having a throat area 87 percent of the design value was conducted at one turbine operating point. The first-, second-, and third-stage mass-averaged efficiencies were 0.897, 0.843, and 0.755, respectively. The corresponding over-all turbine efficiency was 0.856" (p. 1).
Date: April 30, 1957
Creator: Schum, Harold J.; Petrash, Donald A. & Davison, Elmer H.
Partner: UNT Libraries Government Documents Department
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Cyclotron resonance absorption by a hydrogen plasma

Description: From introduction: "The work described in this report was undertaken as part of an experimental study to determine the effectiveness of radiofrequency field in heating the ions of a hydrogen or deuterium plasma. The ultimate aim is to find a method of heating a deuterium plasma until an appreciable rate of nuclear reaction takes place."
Date: August 30, 1957
Creator: Chambers, Edmund S.
Partner: UNT Libraries Government Documents Department
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The Design and Application of A Heat Transfer Analogue for Radially Symmetrical Problems

Description: This report describes the design, construction, and application of an electrical analogue for solution of the steady state problem. Teledeltos paper (an electrically conductive paper) was used to construct this analogue, and although this and other sheet materials has been used for heat transfer analogues in several previous investigations, it is believed that the present work is unique in the application of Teledeltos paper to three dimensional problems of radial symmetry.
Date: January 30, 1957
Creator: Cook, M. W.
Partner: UNT Libraries Government Documents Department
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DIMENSIONALLY STABLE ALLOYS. Interim Report

Description: The development of dimensionally stable alloys for high temperature reactor application is discussed. Cold pressing followed by sintering was determined to be the most satisfactory method. Evaluation of alloys by alpha - beta thermal cycling indicated the superiority of U--Mo and U--Nb alloys. A few specimens containing small additions of Mo, Nb, and Si were irradiation tssted in the Materials Testing Reactor. Of these, the Nb alloy (1.6 wt.% Nb) appeared to be most stable. The Mo alloys were s… more
Date: October 30, 1957
Creator: Eiss, A. L. & Kalish, H. S.
Partner: UNT Libraries Government Documents Department
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Effects of Internal-Area Distribution, Spike Translation, and Throat Boundary-Layer Control on Performance of a Double-Cone Axisymmetric Inlet at Mach Numbers From 3.0 to 2.0

Description: Report presenting an investigation to determine the effects of initial subsonic diffusion rate, variable geometry, and throat boundary-layer control on the performance of an axisymmetric double-cone inlet. Major gains in performance at higher Mach numbers were obtained with boundary-layer control in the form of a ram scoop at the throat. Results regarding the effect of internal-area distribution, effect of spike translation, and effect of throat boundary-layer control are provided.
Date: August 30, 1957
Creator: Connors, James F.; Lovell, J. Calvin & Wise, George A.
Partner: UNT Libraries Government Documents Department
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Effects of wing warp on the lift, drag, and static longitudinal stability characteristics of an aircraft configuration having an arrow wing of aspect ratio 1.86 at Mach numbers from 1.1 to 1.7

Description: Report presenting the results of a free-flight investigation to determine the effect of wing warp on the lift, drag, and static longitudinal stability characteristics of a low-drag aircraft with an arrow wing of aspect ratio 1.86. Results regarding the trim, drag, lift-drag ratios, and normal force and pitching moment are provided.
Date: August 30, 1957
Creator: Gillespie, Warren, Jr.
Partner: UNT Libraries Government Documents Department
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Flight Investigation at Low Angles of Attack to Determine the Longitudinal Stability and Control Characteristics of a Cruciform Canard Missile Configuration With a Low-Aspect-Ratio Wing and Blunt Nose at Mach Numbers From 1.2 to 2.1

Description: Report presenting flight testing of a rocket-powered model of a cruciform canard missile configuration with a low-aspect-ratio wing and blunt nose. Results regarding the lift coefficient, dynamic stability, static stability, control effectiveness, and drag are provided.
Date: September 30, 1957
Creator: Brown, Clarence A., Jr.
Partner: UNT Libraries Government Documents Department
open access

Flight Investigation at Low Angles of Attack to Determine the Longitudinal Stability and Control Characteristics of a Cruciform Canard Missile Configuration With a Low-Aspect-Ratio Wing and Blunt Nose at Mach Numbers From 1.2 to 2.1

Description: Report presenting testing of a full-scale rocket-powered model of a cruciform canard missile configuration with a low-aspect-ratio wing and blunt nose. Static and dynamic longitudinal stability and control derivatives were determined at low angles of attack and for a range of Mach numbers.
Date: September 30, 1957
Creator: Brown, Clarence A., Jr.
Partner: UNT Libraries Government Documents Department
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Flight Investigation of Factors Affecting the Choice of Minimum Approach Speed for Carrier-Type Landings of a Swept-Wing Jet Fighter Airplane

Description: Report presenting flight testing and analog-computer studies using flight-test results of a swept-wing jet fighter in the landing condition to determine the factors that influence a pilot to select the minimum approach speed for carrier-type landings. Many factors that influenced the pilot occurred in approximately the same speed range, and the quantitative determination of the influence of each factor was not possible. Results regarding measurement of airplane and engine characteristics, field… more
Date: September 30, 1957
Creator: Lina, Lindsay J.; Morris, Garland J. & Champine, Robert A.
Partner: UNT Libraries Government Documents Department
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Free-flight investigation of jet effects at low supersonic Mach numbers on a fighter-type configuration employing a tail-boom assembly: longitudinal stability and trim

Description: Report presenting flight tests over a range of Mach numbers to study the effects of a simulated afterburning turbojet engine on the gross longitudinal flight characteristics of two geometrically identical models of a swept-wing fighter-type configuration. Results regarding the trim characteristics, lift, pitching moment, dynamic stability, and drag are provided.
Date: August 30, 1957
Creator: Jackson, Bruce G. & Crabill, Norman L.
Partner: UNT Libraries Government Documents Department
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Investigation of conditions for spontaneous ignition and combustion efficiency of pentaborane in a small-scale combustor

Description: Report presenting an investigation using a small-scale ramjet combustor to determine the conditions for spontaneous ignition of pentaborane, amyl nitrate, propylene oxide, and JP-4 fuel. For the range of conditions investigated, the threshold of spontaneous ignition of pentaborane is primarily governed by temperature and is also influenced by burner length and configuration. Combustion efficiency was found to increase in burner length and blocked area of the flame holder.
Date: April 30, 1957
Creator: Lord, Albert M. & Morris, James F.
Partner: UNT Libraries Government Documents Department
open access

Ion Oscillations in a Magnetic Field

Description: The following report is based off of one of the author's lectures on the physics of plasma, or ionized gases, which was given on July 16, 1954.
Date: July 30, 1957
Creator: Newcomb, William A.
Partner: UNT Libraries Government Documents Department
open access

Lateral Stability Investigation at Mach Numbers From 0.8 to 1.7 of Two Rocket-Boosted Models of an Airplane Configuration With a 45 Degree Swept Wing and a Low Horizontal Tail

Description: "Rocket-boosted free-flight tests of two models of an airplane configuration having a 45 degree swept wing and a low horizontal-tail position have provided lateral stability derivatives and control effectiveness data for a Mach number range from 0.8 to 1.7. The experimental lateral stability derivatives presented are corrected to rigid conditions and compared with theoretically calculated rigid derivatives. The results are presented without detailed analysis" (p. 1).
Date: September 30, 1957
Creator: McFall, John C., Jr.; Mitchell, Jesse L. & Vitale, A. James
Partner: UNT Libraries Government Documents Department
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