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Preliminary Tests of a Buffet Stall-Warning Device on a 1/5-Scale Model of the Republic XP-84 Airplane

Description: "During the first flight tests of the Republic XP-84 airplane it was discovered that there was a complete lack of stall warning. A short series of development tests of a suitable stall-warning device for the airplane was therefore made on a 1/5-scale model in the Langley 300 MPH 7- by 10-foot tunnel. Two similar stall-warning devices, each designed to produce early root stall which would provide a buffet warning, were tested" (p. 1).
Date: October 30, 1946
Creator: Tucker, Warren A. & Comisarow, Paul
Partner: UNT Libraries Government Documents Department
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Experimental investigation of performance and operating characteristics of a tail-pipe burner for a turbojet engine

Description: Report presenting an investigation to obtain fundamental information required for the design of a satisfactory tail-pipe burner for augmenting turbojet engine thrust. Investigations were also conducted to determine the combustion and pressure-drop characteristics of the most satisfactory burner, to develop a method of controlling the burner-outlet temperature distribution, and to improve the burner ignition characteristics.
Date: October 30, 1947
Creator: Gabriel, David S.; Martinson, E. Vincent & Essig, Robert H.
Partner: UNT Libraries Government Documents Department
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Progress Report for the Month of October, 1947 : Contract No. W-38-094-eng-27

Description: This report for October, 1947 describes progress regarding ore dressing and pyrometallurgical studies, chemical work on phosphates, chemical work on shales, and analytical work.
Date: October 30, 1947
Creator: Bearse, A. E.; Center, E. J.; Pray, H. A.; Richardson, A. C. & Sullivan, John D.
Partner: UNT Libraries Government Documents Department
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Regional survey monthlies 1948

Description: This report provides the regional radiation surveys for the months of October and November of 1948.
Date: October 30, 1948
Creator: Berlin, W. C. Jr.
Partner: UNT Libraries Government Documents Department
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Preliminary investigation of the pressure fluctuations in the wakes of two-dimensional wings at low angles of attack

Description: Report presenting a measurement of the magnitudes of pressure fluctuations in the turbulent wakes of restrained two-dimensional airfoils at transonic speeds. Measurements indicated that the total-pressure fluctuations occurred only within the wake. Results regarding the magnitude of pressure oscillation in the wake, effect stream-angle fluctuations in the wake, and frequencies of pressure oscillation on the wing and in the wake are provided.
Date: October 30, 1951
Creator: Sorenson, Robert M.; Wyss, John A. & Kyle, James C.
Partner: UNT Libraries Government Documents Department
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Generalized Theory for Seaplane Impact

Description: "The motions, hydrodynamic loads, and pitching moments experienced by V-bottom seaplanes during step-landing impacts are analyzed and the theoretical results are compared with experimental data. In the analysis, the primary flow about the immersed portion of a keeled hull or float is considered to occur in transverse flow planes and the concept of virtual mass is applied to determined the reaction of the water to the motions of the seaplane. The entire immersion process is analyzed from the instant of initial contact until the seaplane rebounds from the water surfaces" (p. 953).
Date: October 30, 1952
Creator: Milwitzky, Benjamin
Partner: UNT Libraries Government Documents Department
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A pressure-distribution investigation of a fineness-ratio-12.2 parabolic body of revolution (NACA RM-10) at M = 1.59 and angles of attack up to 36 degrees

Description: Report presenting a pressure-distribution investigation of a parabolic body of revolution with a fineness ratio of 12.2, which was performed in the 4- by 4-foot supersonic tunnel at Mach number 1.59 and Reynolds number 3.6 x 10(sub 6), based on body length, for a range of angles of attack. Results regarding basic pressures, aerodynamic coefficients, asymmetrical pressures, comparison of experimental and theoretical pressures, artificial roughness, section coefficients, and body coefficients are provided.
Date: October 30, 1952
Creator: Cooper, Morton; Gapcynski, John P. & Hasel, Lowell E.
Partner: UNT Libraries Government Documents Department
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Thrust Loading of the NACA 3-(3)(05)-05 Eight-Blade Dual-Rotating Propeller as Determined From Wake Surveys

Description: Report presenting wake-survey measurements of the thrust loading of the NACA 3-(3)(05)-05 eight-blade dual-rotating propeller for several blade angles and forward Mach numbers. The results indicate that the changes in the lift-curve slopes of the airfoils have a secondary influence in producing large decreases in thrust loading that occur at high Mach numbers. The changes in thrust loading also occur at different rates at different locations on the propeller.
Date: October 30, 1952
Creator: Platt, Robert J., Jr.
Partner: UNT Libraries Government Documents Department
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Aerodynamic characteristics in pitch of a series of cruciform-wing missiles with canard controls at a Mach number of 2.01

Description: From Introduction: "This paper presents the results of tests made at a Mach number of 2.01 to determine the effect of body length on the longitudinal characteristics (zero roll angle) for five complete configurations as well as for the bodies alone, the bodies plus wings, and the bodies plus canard surfaces. The experimental results are compared with some simple theoretical estimates."
Date: October 30, 1953
Creator: Spearman, M. Leroy
Partner: UNT Libraries Government Documents Department
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Preliminary investigation of the effects of several seeker-nose configurations on the longitudinal characteristics of a canard-type missile at a Mach number of 1.60

Description: Report presenting an investigation to determine the effect of several seeker-nose configurations on the static longitudinal stability, canard control characteristics, and lift and drag at Mach number 1.60 of a canard-type ramjet missile with 70 degree delta canard control surfaces and 70 degree delta wings. The tests indicate that, for the most part, the configurations tested exhibited no significant difference in static longitudinal stability or horizontal-canard control effectiveness.
Date: October 30, 1953
Creator: Robins, A. Warner
Partner: UNT Libraries Government Documents Department
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Proton-Proton Scattering at 9.7 Mev

Description: No Description Available.
Date: October 30, 1953
Creator: Cork, B. & Hartsough, W.
Partner: UNT Libraries Government Documents Department
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RESEARCH ON THE RADIATION STABILITY OF ORGANIC FLUIDS. Progress Report for January 1, 1953 through September 30, 1953. Report No. 6

Description: Additional knowledge was gained pertaining to effects of irradiation variables, chemical components, etc., on the stability of organics. This basic program was supplemented with an applied program wherein research was undertaken of particular irterest in reactor moderator-coolart and lubricant applications. Irradiations of the capsule type in the absence of air were conducted in the MTR, BNL, and X-10 reactors under a variety of conditions in investigations of effects of temperature, flux, dosage, and organic chemical structure. The MTR gamma facility and the California Research Co/sup 60/ source were also used. With highly aromatic organics, damage measured by viscosity change was found independent of irradiation temperature up to 371 deg C. Coke formation was minor, although it was universal at 426 deg C. Many fused ring and nonfused ring aromatics were stable at 371 deg C. Viscosity changes were slight, and gassing amounted to about 2 to 5 ml gas/ml fluid. Simple molecular distillations showed biphenyl, naphthalene, and 1,3-diphenylbenzene, to be 93 to 97% distillable, of which 72 to 81% was pure starting material. The stabilities of solutions of highly viscous polymers in low viscosity alkylbenzenes were studied in the presence of air with gamma radiation. Styrene-alkene copolymer, polyalkene, and polyester solutions markedly decreased in viscosity on irradiation; whereas, polystyrene solutions merely increased slowly. Comparative stabilities of representative types of organics with combined neutron and gamma radiation allowed the tentative determination, based on viscosity change, that one fast neutron (>1 Mev) causes approximately 16 times the damage of one gamma (1.6 Mev). Thermal neutrons cause insignificant damage. As a result, it is suggested that the radiation dosage to cause damage be expressed in terms of "equivalent fast neutrons," a number obtained by adding to the number of fast neutrons the damage equivalent number each of gamma rays and epithermal neutrons. (auth)
Date: October 30, 1953
Partner: UNT Libraries Government Documents Department
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Rocket-Model Investigation to Determine the Hinge-Moment and Normal-Force Properties of a Full-Span, Constant-Chord, Partially Balanced Trailing-Edge Control on a 60 Degree Clipped Delta Wing Between Mach Numbers of 0.50 and 1.26

Description: Report presenting a free-flight investigation of a rocket-powered research model to determine the hinge-moment and normal-force characteristics of a trailing-edge control on a delta wing between Mach numbers of 0.50 and 1.26. The hinge-line location of 40 percent control chord satisfactorily reduced the high hinge moments associated with plain flap-type controls. Results regarding hinge moments and normal force are provided.
Date: October 30, 1953
Creator: Martz, C. William & Goslee, John W.
Partner: UNT Libraries Government Documents Department
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Wake Surveys in the Slipstream of a Full-Scale Supersonic-Type Three-Blade Propeller at Mach Numbers to 0.96

Description: Report presenting an investigation of the thrust loading by wake surveys in the slipstream of a full-scale supersonic-type three-blade propeller (the Curtiss-Wright 109622) that was conducted in the transonic tunnel. Integrated-thrust coefficient values were found to be in good agreement with the force data. Results regarding thrust loading at constant advance ratios, at advance ratios for maximum efficiency, and lift-coefficient distribution are also provided.
Date: October 30, 1953
Creator: Swihart, John M. & Norton, Harry T., Jr.
Partner: UNT Libraries Government Documents Department
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Purex Plant L Cell Plutonium concentration flowsheet

Description: This document is a copy of a memo dated October 30, 1956. Since the start-up of the Purex Plant, numerous process and equipment difficulties have been encountered in the concentration of plutonium in the L Cell Package. A summary of these problems and their resolutions was being documented by the Purex Technology Operation. One of the proposed remedial measures for improving on the present plutonium concentration equipment in the Purex Plant was to install new equipment constructed of more corrosion resistant materials and of a design simplified for contact maintenance.
Date: October 30, 1956
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 somewhat less satisfactory and the alloys containing Si were not stable. (auth)
Date: October 30, 1957
Creator: Eiss, A. L. & Kalish, H. S.
Partner: UNT Libraries Government Documents Department
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Technical data pertinent to graphite contraction

Description: Since the New Production Reactor is to have higher power density than the existing reactors, graphite contraction is a critical factor in its design. Ample data are available to describe graphite distortion in certain temperature ranges in the HAPO reactors. H Reactor exhibits three distinct and increasing contraction rates, corresponding to 3 levels of equilibrium power. A small temperature dependence may exist. There is no evidence of saturation of graphite contraction in the HAPO reactors. Extrapolation of the current trends are made. Programs are underway to further define graphite behavior and to solve problems associated with graphite distortion.
Date: October 30, 1958
Creator: Curtiss, D. H. & Trumble, R. E.
Partner: UNT Libraries Government Documents Department
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AIR CORE CRYOGENIC MAGNET COILS FOR FUSION RESEARCH AND HIGH ENERGY NUCLEAR PHYSICIS APPLICATIONS

Description: It is shown that cryogenic techniques offer the possibility of substantially improving the efficiency and practicality of generating high magnetic fields in air-core coils of large size. Over-all reductions in power requirements of as high as 25, by comparison with conventional coils, are predicted, provided high purity conductors and efficient refrigeration cycles are used. (W.D.M.)
Date: October 30, 1959
Creator: Post, R. F. & Taylor, C. E.
Partner: UNT Libraries Government Documents Department
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