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Electrodeposition of Aluminum and Zirconium on Uranium

Description: Technical report outlining a method for the electrodeposition of adherent deposits of both aluminum and zirconium on uranium. Report finds that current efficiencies are good for aluminum deposition but low for the zirconium baths. [From Abstract]
Date: October 12, 1950
Creator: Lietzke, M. H.
Partner: UNT Libraries Government Documents Department
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Evaluation of Carbagel Process for Air Refrigeration for Use With BNL Reactor

Description: Technical report outlining the use of the Carbagel process in nuclear reactors, its technical feasibility, and case studies of the Carbagel process and its theoretical and technical use for reactors such as the Brookhaven National Laboratory reactor.
Date: April 12, 1950
Creator: Winsche, W. E.
Partner: UNT Libraries Government Documents Department
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The Preparation and Properties of Mammalian Ribonucleic Acids

Description: "A method for the preparation of mammalian ribonucleic acids employing high concentrations of guanidine hydrochloride in the fractionation procedure is reported in this paper. Aside from the facility of preparation the method has the advantage of avoiding conditions of acidity and alkalinity which might degrade tissue ribonucleic acids and, by virtue of the protein denaturant action of guanidine salts, of minimizing the possibility for enzymatic degradation" (p. 3).
Date: October 12, 1950
Creator: Volkin, E. & Carter, C. E.
Partner: UNT Libraries Government Documents Department
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Lift and pitching-moment interference between a pointed cylindrical body and triangular wings of various aspect ratios at Mach numbers of 1.50 and 2.02

Description: Report investigating the effects of interference on wing-body combinations by testing a pointed, cylindrical body at Mach numbers of 1.50 and 2.02 of six triangular wings with a range of aspect ratios and with the wing and body in combination. Theoretical characteristics of the body and wings alone and in combination were calculated from available theories and compared with experimental results.
Date: September 12, 1950
Creator: Nielsen, Jack N.; Katzen, Elliott D. & Tang, Kenneth K.
Partner: UNT Libraries Government Documents Department
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Low-speed investigation of leading-edge and trailing-edge flaps on a 47.5 degree sweptback wing of aspect ratio 3.4 at a Reynolds number of 4.4 x 10(exp 6)

Description: Report presenting an investigation in the full-scale tunnel of the low-speed longitudinal characteristics of a 47.5 degree sweptback wing-fuselage combination with various extensible leading-edge-flap and plain trailing-edge-flap arrangements. Results regarding the basic longitudinal characteristics, extensible leading-edge flaps, plain trailing-edge flaps, and flap combinations are provided.
Date: June 12, 1950
Creator: Pasamanick, Jerome & Sellers, Thomas B.
Partner: UNT Libraries Government Documents Department
open access

Tank investigation of the Grumman JRF-5 airplane fitted with hydro-skis suitable for operation on water, snow, and ice

Description: Report presenting results of a tank investigation of a 1/8-size powered dynamic model of the Grumman JRF-5 airplane fitted with tandem hydro-skis and auxiliary wing-tip skids suitable for operation on water, snow, and ice. Results regarding take-off and landing tests are provided.
Date: June 12, 1950
Creator: Wadlin, Kenneth L. & Ramsen, John A.
Partner: UNT Libraries Government Documents Department
open access

Preliminary Analysis of Problem of Determining Experimental Performance of Air-Cooled Turbine 1: Methods for Determining Heat-Transfer Characteristics

Description: In determining the experimental performance of an air-cooled turbine, the heat-transfer characteristics must be evaluated. The suggested formulas that are required to determine these characteristics are presented. The formulas have a form in which dependent parameters are expressed as unknown functions of independent parameters. Methods of experimenting to determine these functions are suggested. In some cases general heat-transfer discussions that lead to the suggested forms of the formulas ar… more
Date: June 12, 1950
Creator: Ellerbrock, Herman H., Jr. & Ziemer, Robert R.
Partner: UNT Libraries Government Documents Department
open access

Exploratory Investigation of the Effect of Skewed Plain Nose Flaps on the Low-Speed Characteristics of a Large-Scale Triangular-Wing-Fuselage Model

Description: Memorandum presenting an investigation of the effect of skewed plain nose flaps on a thin, low-aspect-ratio triangular wing in combination with a high fineness-ratio fuselage conducted at low speeds and high Reynolds numbers. The plan form of the flaps was such that the flap chord varied from zero percent of the wing chord at the model center line to 100 percent at about 91-percent wing semispan. The results indicated that the nose flaps provided a significant delay in the occurrence of both th… more
Date: January 12, 1950
Creator: Wick, Bradford H. & Graham, David
Partner: UNT Libraries Government Documents Department
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Results Obtained During Flights 1 to 6 of the Northrop X-4 Airplane (A.F. No. 46-677)

Description: Report presenting testing using a Northrop X-4 to obtain stability and control data during airplane acceptance tests. The data includes a time history of a complete pull-up, time histories of several level and accelerated flight runs, and the effect of dive-brake extension on the longitudinal and lateral trim.
Date: January 12, 1950
Creator: Matthews, James T., Jr.
Partner: UNT Libraries Government Documents Department
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Aerodynamic characteristics of NACA RM 10 missile in 8 by 6 foot supersonic wind tunnel at Mach numbers from 1.49 to 1.98. 3: analysis of force distribution at angle of attack (stabilizing fins removed)

Description: Report presenting an analysis of the force distribution on a slender pointed body of revolution at angle of attack utilizing pressure-distribution data and balance measurements. The data were obtained in the supersonic tunnel at a variety of Mach numbers and angles of attack. Results regarding normal forces and axial force are provided.
Date: December 12, 1950
Creator: Luidens, Roger W. & Simon, Paul C.
Partner: UNT Libraries Government Documents Department
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Flight Measurements of the Pressure Distribution on the Wing of the X-1 Airplane (10 Percent Thick Wing) Over a Chordwise Station Near the Midspan, in Level Flight at Mach Numbers From 0.79 to 1.00 and in a Pull Up at a Mach Number of 0.98

Description: Report presenting measurements of chordwise pressure distribution over the 10-percent-thick wing of the X-1 research airplane at a section near the midspan of the left wing. Results regarding the upper- and lower-surface pressure distributions at a range of Mach numbers and section loads are provided.
Date: September 12, 1950
Creator: Carner, H. Arthur & Knapp, Ronald J.
Partner: UNT Libraries Government Documents Department
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Flight Investigation of Longitudinal Stability and Control Characteristics and Stalling Characteristics of a C-54D Airplane

Description: Report presenting the flying qualities of a C-54D airplane measured as a preliminary to an investigation to determine the necessity of additions or revisions to flying-quality requirements in view of the problems associated with making instrument approaches to low altitudes. Results regarding control friction, dynamic longitudinal stability, static longitudinal stability, maneuvering stability, take-off and landing characteristics, effectiveness of the trim tabs, trim changes, and stalling char… more
Date: May 12, 1950
Creator: Talmage, Donald B.; Reeder, John P. & Matthews, Ruth G.
Partner: UNT Libraries Government Documents Department
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Investigation of the downwash and wake behind a triangular wing of aspect ratio 4 at subsonic and supersonic Mach numbers

Description: Report presenting the effects of Mach number between 0.50 and 0.95 and between 1.09 and 1.29 on the characteristics of the downwash and on the location of the wake behind a triangular wing of aspect ratio 4 as determined from semispan model tests.
Date: December 12, 1950
Creator: Walker, Harold J. & Stivers, Louis S., Jr.
Partner: UNT Libraries Government Documents Department
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Effect on longitudinal stability and control characteristics of a Boeing B-29 airplane of variations in stick-force and control-rate characteristics obtained through use of a booster in the elevator-control system

Description: A longitudinal stability and control characteristics of a Boeing B-29 airplane have been measured with a booster incorporated in the elevator-control system. Tests were made to determine the effects on the handling qualities of the test airplane of variations in the pilot's control-force gradients as well as the effects of variations in the maximum rate of control motion supplied by the booster. The results of the control-rate investigation indicate that large airplanes may have satisfactory ha… more
Date: April 12, 1950
Creator: Mathews, Charles W.; Talmage, Donald B. & Whitten, James B.
Partner: UNT Libraries Government Documents Department
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Two-and Three-Dimensional Unsteady Lift Problems in High-Speed Flight

Description: "The problem of transient lift on two- and three-dimensional wings flying at high speeds is discussed as a boundary-value problem for the classical wave equation. Kirchoff's formula is applied so that the analysis is reduced, just as in the steady state, to an investigation of sources and doublets. The applications include the evaluation of indicial lift and pitching-moment curves for two-dimensional sinking and pitching wings flying at Mach numbers equal to 0, 0.8, 1.0, 1.2 and 2.0" (p. 393).
Date: October 12, 1950
Creator: Lomax, Harvard; Heaslet, Max A.; Fuller, Franklyn B. & Sluder, Loma
Partner: UNT Libraries Government Documents Department
open access

Analysis of Turbulent Free-Convection Boundary Layer on Flat Plate

Description: "With the use of Karman's integrated momentum equation for the boundary layer and data on the wall-shearing stress and heat transfer in forced-convection flow, a calculation was carried out for the flow and heat transfer in the turbulent free-convection boundary layer on a vertical flat plate. The calculation is for a fluid with a Prandtl number that is close to 1. A formula was derived for the heat-transfer coefficient that was in good agreement with experimental data in the range of Grashof n… more
Date: July 12, 1950
Creator: Eckert, E. R. G. & Jackson, Thomas W.
Partner: UNT Libraries Government Documents Department
open access

THE ROASTING OF PITCHBLENDE ORE

Description: No Description Available.
Date: December 12, 1950
Creator: Buckheim, O.J.; Kloepper, H.C.; Paine, R.M.; Ruehle, A.E.; Stevenson, J.W. & Weber, L.G.
Partner: UNT Libraries Government Documents Department
open access

The Determination of Indium in Indium Plutonium Solutions

Description: Abstract: "A gravimetric procedure is described for the analysis of indium-plutonium solutions. This procedure consists of a preliminary separation of the plutonium as the peroxide, followed by the quantitative precipitation of indium diethyl dithio carbamate from a slightly acid solution. The precipitate is dried at 105 C and weighed. Recoveries of 99.4 - 100.5% with an average precision of 2.3/100 were obtained on known Pu-In solutions containing 5 - 50 mg of indium per sample."
Date: December 12, 1950
Creator: Waterbury, Glenn R.
Partner: UNT Libraries Government Documents Department
open access

Zirconium Purification Pilot Plant

Description: This report discusses the process of zirconium purification, providing an alternate method for converting ZrCl4 solution to the oxide in order to free it from small amounts of hafnium impurity that are naturally present.
Date: September 12, 1950
Creator: Lea, D. C.; Aykanian, A. A.; Abbanat, R. G. & Bowman, W. H.
Partner: UNT Libraries Government Documents Department
open access

Free-Spinning-Tunnel Investigation of a 1/24-Scale Model of the Grumman AF-2S, -2W Airplane

Description: "An investigation of the spin and recovery characteristics of a 1/24-scale model of the Grumman AF-2S, -2W airplane was conducted in the Langley 20-foot free-spinning tunnel. The effects of controls on the erect and inverted spin and recovery characteristics for a range of possible loadings of the.airplane were determined. The effect of a revised-tail installation (small dual fins added to the stabilizer of the original tail and the vertical-tail height of the original tail increased) and the e… more
Date: March 12, 1950
Creator: Klinar, Walter J. & Wilson, Jack H.
Partner: UNT Libraries Government Documents Department
open access

A comparison of theory and experiment for high-speed free-molecule flow

Description: A comparison is made of free-molecule-flow theory with the results of wind-tunnel tests performed to determine the drag and temperature-rise characteristics of a transverse circular cylinder. The measured values of the cylinder center-point temperature confirmed the salient point of the heat-transfer analysis which was the prediction that an insulated cylinder would attain a temperature higher than the stagnation temperature of the stream. Good agreement was obtained between the theoretical and… more
Date: September 12, 1950
Creator: Stalder, Jackson R.; Goodwin, Glen & Creager, Marcus O.
Partner: UNT Libraries Government Documents Department
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