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Control characteristics of trailing-edge spoilers on untapered blunt trailing-edge wings of aspect ratio 2.7 with 0 degree and 45 degrees sweepback at Mach numbers of 1.41 and 1.96

Description: Report presenting an investigation in the supersonic blowdown tunnel to determine the control characteristics of full-span trailing-edge spoilers on two related full-blunt wings with the same aspect ratio but differing angles of sweepback. A similar unswept wing that was larger and had a partially blunt trailing edge was also tested with a full-span trailing-edge spoiler. Results regarding the lift, rolling-moment, and pitching-moment coefficients for unswept wings, the 45-degree sweptback wing… more
Date: December 3, 1952
Creator: Jacobsen, Carl R.
Partner: UNT Libraries Government Documents Department
open access

The Decomposition of Light and Heavy Water Boric Acid Solutions by CP-3' File Radiations

Description: The behavior of light and heavy water solutions of boric acid toward pile radiations has been investigated as a function of boric acid concertation. A study has also been made of the effect of hydrogen, hydrogen peroxide, and potassium iodide on the radiation stability of boric acid solutions.
Date: December 3, 1952
Creator: Hart, Edwin J. (Edwin James), 1910-; McDonell, William R. & Gordon, Sheffield
Partner: UNT Libraries Government Documents Department
open access

Production Test 234-5 plant process evaluation precipitation of plutonium IV oxalate

Description: The object of the work described in this report was to adapt the laboratory procedures for precipitating and hydrofluorinating plutonium (IV) oxalate to plant equipment on 160 and 350 gram scale. This adaptation was done by making minor process changes in concentration, digestion time, rate of chemical addition, etc.
Date: December 3, 1952
Creator: Kerr, W.B.
Partner: UNT Libraries Government Documents Department
open access

Evaluation of Type 304 Stainless Steel as a Substitute for Type 347

Description: Abstract: "Type 347 stainless steel was selected for SIR applications requiring resistance to corrosion in sodium on the basis of limited corrosion data and extrapolation of experience in aqueous media. Subsequent testing indicated that carbide stabilization was not necessary for good resistance to corrosion in sodium. Evaluation of the unstabilized grade of 18-8 stainless steel, Type 304, was intensified because it offered a number advantages over Type 347. Type 304 was more readily available,… more
Date: November 3, 1952
Creator: Koenig, R. F.
Partner: UNT Libraries Government Documents Department
open access

Low-speed static longitudinal and lateral stability characteristics of a model with leading-edge chord-extensions incorporated on a 40 degree sweptback circular-arc wing of aspect ratio 4 and taper ratio 0.50

Description: Report presenting an investigation to determine the aerodynamic effects at low speed of several wing leading-edge chord-extensions incorporated on a complete model with a 40 degree sweptback circular-arc wing of aspect ratio 4 and taper ratio 0.50. Testing indicated that the effectiveness of the chord-extension in increasing the stability is mainly dependent on the spanwise inboard-end location of the device. Results regarding the static longitudinal characteristics and effect of chord-extensio… more
Date: November 3, 1952
Creator: Goodson, Kenneth W. & Few, Albert G., Jr.
Partner: UNT Libraries Government Documents Department
open access

The Longitudinal Stability and Control Characteristics of a 60 Degree Delta-Wing Missile Having Half-Delta Tip Controls as Obtained From a Free-Flight Investigation at Transonic and Supersonic Speeds

Description: Report discussing testing of a model of a cruciform 60 degree delta-wing missile configuration with half-delta tip controls at a range of Mach numbers. Longitudinal stability derivatives, control effectiveness, and drag characteristics were obtained using a square-wave pulsed-control technique.
Date: October 3, 1952
Creator: Moul, Martin T. & Baber, Hal T., Jr.
Partner: UNT Libraries Government Documents Department
open access

Purity data on Redox start-up material through the 231 and 234-5 Buildings

Description: Redox effluent for production was first processed in the 231 Building on February 4, 1952. Samples of process streams were taken after each purification step to evaluate the adequacy of purification processes in,the 231 and 234-5 Buildings and to provide close control of this material. Data regarding pile residence histories, radiation surveys of ``Sample Cans``, reduction yields, C/Q values, and product purity after purification steps were accumulated and are presented in this report to establ… more
Date: October 3, 1952
Creator: Collins, P.E.
Partner: UNT Libraries Government Documents Department
open access

The Use of Radioactive Bromide and Chloride to Measure Extracellular Fluid

Description: During the last year we have been attempting to increase our understanding of the significance of the various dilution methods used to measure the extra-cellular fluid. When the dilution methods were first proposed to obtain a measure of the extracellular fluid volume, it was hoped that an agent could be found which would distribute uniformly and exclusively throughout this compartment, which would approach equilibrium rapidly, and which could be measured by simple and accurate procedures. We h… more
Date: October 3, 1952
Creator: Gamble, James, L., Jr., M.D.
Partner: UNT Libraries Government Documents Department
open access

A correlation with flight tests of results obtained from the measurement of wing pressure distributions on a 1/4-scale model of the X-1 airplane (10-percent-thick wing)

Description: Report presenting an investigation in the transonic tunnel of the aerodynamic characteristics of a scale model of an X-1 airplane in order to correlate wing pressure-distribution results obtained in a slotted wind tunnel with flight test data on the full-scale airplane. Results regarding basic pressure measurements, and correlation of pressure measurements are provided.
Date: September 3, 1952
Creator: Runckel, Jack F. & Henderson, James H.
Partner: UNT Libraries Government Documents Department
open access

A study of the zero-lift drag-rise characteristics of wing-body combinations near the speed of sound

Description: Comparisons of the shock phenomena and drag-rise increments for representative wing and central-body combinations with those for bodies of revolution with the same axial distributions of cross-sectional area normal to the air stream. An investigation was also presented of representative wing-body combinations with the body so indented that the axial distributions of cross-sectional areas for the combinations were the same as that for the original body. Results regarding unswept wing and cylindr… more
Date: September 3, 1952
Creator: Whitcomb, Richard T.
Partner: UNT Libraries Government Documents Department
open access

A Transonic Investigation of the Aerodynamic Characteristics of Plate- and Bell- Type Outlets for Auxiliary Air

Description: Report presenting an investigation of the aerodynamic characteristics of several plate- and bell-type outlets discharging air into a transonic stream. The variation in discharge coefficient of the outlets is presented as a function of the rate of discharge. The discharge coefficient, jet wake, and surface pressure distribution are also provided.
Date: September 3, 1952
Creator: Nelson, William J. & Dewey, Paul E.
Partner: UNT Libraries Government Documents Department
open access

The aerodynamic characteristics at transonic speeds of an all-movable, tapered, 45 degrees sweptback, aspect-ratio-4 tail surface deflected about a skewed hinge axis

Description: From Introduction: "The purpose of the present paper was to determine whether the characteristics about a skewed axis could be predicted from data about the normal angle-of-attack axis, and whether such a configuration offered any aerodynamic advantages over the conventional hinge location normal to the pane of symmetry."
Date: July 3, 1952
Creator: Hammond, Alexander D. & Watson, James M.
Partner: UNT Libraries Government Documents Department
open access

Effect of Fluoride on the Gravimetric Determination of Zirconium in Zirconium Fluoride

Description: Abstract: "The results of this investigation that it is necessary to remove fluoride prior to precipitation zirconium with mandelic acid or phenyl arsonic acid. Fluoride, however, has little effect on the cupferron method of precipitation. The discovery that zirconium fluoride is soluble in a mixture of aqua regia and sulfuric acid made it possible to dissolve the material without the addition of fluoride from hydrofluoric acid."
Date: June 3, 1952
Creator: McCutchen, R. L. & Susano, C. D.
Partner: UNT Libraries Government Documents Department
open access

Full-scale wind-tunnel investigation of the effects of wing modifications and horizontal-tail location on the low-speed static longitudinal characteristics of a 35 degree swept-wing airplane

Description: Report presenting tests made in the 40- by 80-foot wind tunnel to evaluate the effects of wing modifications on the static longitudinal characteristics of a 35 degree swept-wing airplane. The wing modifications were designed to replace existing wing slats as low-speed high-lift devices. Results regarding the two-dimensional tests, full-scale tests, design of wing modification 1, test results of the airplane, and a comparison of test results with predictions are provided.
Date: April 3, 1952
Creator: Maki, Ralph L.
Partner: UNT Libraries Government Documents Department
open access

Geology and Drilling Recommendations Oak Spring Area Apache County, Arizona, and San Juan County, New Mexico

Description: Abstract: Uranium ore deposits on two exposed rims and past production records of tonnage and grade indicate an exploration program is justified in the Oak Springs area. A minimum of 24,000 feet of core drilling is recommended with a maximum of 75,000 feet to be based on favorability as determined by subsurface studies.
Date: April 3, 1952
Creator: Swanson, Melvin A. & Hatfield, Kenneth G.
Partner: UNT Libraries Government Documents Department
open access

A Determination of the Coefficient of Thermal Expansion of Alpha Plutonium

Description: The coefficient of linear expansion of alpha plutonium has been determined for the range -180 to +100 degree C by the silicon-tube and dial-indicator method. The value of the expansion coefficient is reported as [formula]. Included are a detailed description of the apparatus and a discussion of the method.
Date: March 3, 1952
Creator: Elliott, R. O. & Tate, R. E.
Partner: UNT Libraries Government Documents Department
open access

Experimental investigation of flow in an annular cascade of turbine nozzle blades of constant discharge angle

Description: The experimental performance of turbine nozzle blades designed for a constant discharge angle was investigated at discharge hub Mach numbers of 1.18, 1.31, and 1.41. Flow characteristics are presented in terms of energy losses, angle gradients, and secondary flow effects. Blade efficiency decreased from 0.983 to 0.978 with increasing Mach number in the range investigated while angle variations in the loss regions became very large, indicating poorer blade performance than efficiency implies.
Date: March 3, 1952
Creator: Kofskey, Milton G.; Rohlik, Harold E. & Monroe, Daniel E.
Partner: UNT Libraries Government Documents Department
open access

Low-speed aerodynamic characteristics of a large-scale 60 degree swept-back wing with high lift devices

Description: Report presenting large-scale tests of a semispan model of a 60 degree sweptback wing-fuselage combination. The model was equipped with 25-percent-chord, 36-percent-span, double-slotted flaps, 25-percent-chord, 43-percent-span ailerons, and 17.5-percent-chord leading-edge slats. Flow separation limited the linear range of the pitching moment of the base wing to a lift coefficient of about 0.35.
Date: March 3, 1952
Creator: Kelly, Mark W.
Partner: UNT Libraries Government Documents Department
open access

Permissible design pressures for 2S-H14-72S clad process tubes

Description: The following are the maximum recommended design pressures when using 2S-H14-72S clad process tubes: (a) long duration (Operating Pressure) - 500 psi at tube entry. (b) Short duration (Emergency Pressure) - 600 psi at any point along tube length. (c) If several distoration of some tubes (as of fringe tubes in older piles) is expected the operating pressure limit of the tubes in question should be lowered to compensate for the expected distortion.
Date: March 3, 1952
Creator: Elder, B. R.
Partner: UNT Libraries Government Documents Department
open access

The Synthetic Liquid Fuel Potential of the United States

Description: Report documenting the suitability of the United States for plant locations to produce synthetic liquid fuels, based on raw materials, water sources, and local interest.
Date: March 3, 1952
Creator: Ford, Bacon, and Davis
Partner: UNT Libraries Government Documents Department
open access

Technical activities report water studies

Description: This report details the behavior of water used in nuclear reactors. Detailed studies concerning water quality and water chemistry are reported.
Date: March 3, 1952
Creator: Fryar, R. M.
Partner: UNT Libraries Government Documents Department
open access

Theoretical Calculation of the Effect of the Fuselage on the Spanwise Lift Distribution on a Wing

Description: Report presenting a method for calculating the effect of the fuselage on the spanwise lift distribution on a wing by applying a conformal-mapping procedure to the simplified lifting-surface theory. The calculations are also compared with experimental data and are found to generally agree.
Date: March 3, 1952
Creator: Zlotnick, Martin & Diederich, Franklin W.
Partner: UNT Libraries Government Documents Department
open access

Variation of pressure limits of flame propagation with tube diameter for various isooctane-oxygen-nitrogen mixtures

Description: An investigation was made of the change in the pressure limits of flame propagation with tube diameter for various isooctane-oxygen-nitrogen mixtures. Pressure limits were measured in cylindrical glass tubes of four different inside diameters at six different oxygen-nitrogen ratios. Under the experimental conditions, flame propagation was found to be impossible in isooctane-oxygen mixtures with oxygen concentrations less than 11 to 12 percent. Critical tube diameters for flame propagation were … more
Date: March 3, 1952
Creator: Spakowski, Adolph E. & Belles, Frank E.
Partner: UNT Libraries Government Documents Department
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