UNT Libraries Government Documents Department - 76 Matching Results

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Analysis of Rocket, Ram-Jet, and Turbojet Engines for Supersonic Propulsion of Long-Range Missiles 2 - Rocket Missile Performance

Description: From Summary: "The theoretical performance of a two-stage ballistic rocket missile having a centerbody and two parallel boosters was investigated for J oxygen and ammonia-fluorine propellants. Both power-plant and missile parameters were optimized to give minimum cost on-the basis of the analysis for a range of 5500 nautical miles. After optimum values were found, each parameter was varied independently to determine its effect on performance of the missile."
Date: September 29, 1954
Creator: Huff, Vearl N. & Kerrebrock, Jack
Item Type: Refine your search to only Report
open access

Application of Two-Dimensional Vortex Theory to the Prediction of Flow Fields Behind Wings of Wing Body Combinations at Subsonic and Supersonic Speeds

Description: Note presenting a theoretical investigation of a general method for predicting the flow field behind the wings of plane and cruciform wing and body combinations at transonic or supersonic speeds and slender configurations at supersonic speeds. The effects of certain geometric parameters as aspect ratio,angle of attack and incidence, ratio of body radius to wing semispan, and angle of bank on the vortex wake behidn wings of wing-body combinations were studied.
Date: September 1954
Creator: Rogers, Arthur William
Item Type: Refine your search to only Report
open access

Aspects of internal-flow-system design for helicopter propulsive units

Description: A discussion of pertinent items related to the design of internal-flow systems for reciprocating engine, turbine engine, and pressure-jet installations in helicopters. The following items are emphasized: controllable exit and ram recovery for reciprocating-engine cooling, performance penalties possible in turbine-engine installations, the effects of high subsonic flow velocities on the performance of duct elements, and the effects of centrifugal forces on the flow in a ducted helicopter rotor.
Date: September 14, 1954
Creator: Henry, John R.
Item Type: Refine your search to only Report
open access

Chattanooga Shale Investigations Along the Sequatchie Anticline of Tennessee and Alabama

Description: From abstract: "In 1953 the Chattanooga shale in the Sequatchie anticline was tested for its uranium content by seven diamond drill cores. Concurrent with the drilling, geologic field work was done to determine the distribution, thickness, and structural setting of the shale." The report contains information regarding location and drainage, geology, the drilling program, subdivisions of the Sequatchie anticline, and unpublished reports.
Date: September 1954
Creator: Glover, Lynn
Item Type: Refine your search to only Report
open access

Chattanooga shale investigations along the Sequatchie anticline of Tennessee and Alabama

Description: "The results of an investigation of the Chattanooga shale along the Sequatchie anticline of Tennessee and Alabama are summarized in this report. The project was of an exploratory nature designed to 1) obtain fresh core samples from areas where analyses of outcrop samples showed uranium contents as high or higher than those of the Youngs Bend area in DeKalb County, Tenn.; 2) learn more about the distribution and thickness of the shale in those areas and, if necessary, do some geologic mapping; 3… more
Date: September 1954
Creator: Glover, Lynn
Item Type: Refine your search to only Report
open access

Combined compressor coolant injection and afterburning for turbojet thrust augmentation

Description: Report presenting a discussion of some of the requirements and of the application of the augmented performance of compressor coolant injection and afterburning in a turbojet engine in a high-speed, high-altitude flight. Results regarding the experimental performance of a combined system and the application of augmented performance to high-speed flight are provided.
Date: September 16, 1954
Creator: Useller, James W.; Huntley, S. C. & Fenn, David B.
Item Type: Refine your search to only Report
open access

Comparison of Wind-Tunnel, Rocket, and Flight Drag Measurements for Eight Airplane Configurations at Mach Numbers Between 0.7 and 1.6

Description: Report presenting comparisons of low-lift drag measurements on eight airplane configurations at a range of Mach numbers by various techniques. Data was obtained from wind tunnel testing, rocket propelled model tests, and airplane flight tests. The agreement of data is generally good and no consistent Reynolds number effects are observed.
Date: September 16, 1954
Creator: Purser, Paul E.
Item Type: Refine your search to only Report
open access

Comparison of Wind-Tunnel, Rocket, and Flight Drag Measurements for Eight Airplane Configurations at Mach Numbers Between 0.7 and 1.6

Description: Report presenting comparisons of low-lift drag measurements on eight airplane configurations at a range of Mach numbers using various techniques. Data was obtained from wind-tunnel testing, rocket-propelled model testing, and airplane flight testing. The majority of the data showed agreement and discrepancies were likely due to issues regarding surface condition, individual test setup and accuracy, and detail geometric differences between the airplanes and respective models.
Date: September 16, 1954
Creator: Purser, Paul E.
Item Type: Refine your search to only Report
open access

Determination of Thorium in Plutonium-Thorium Alloys

Description: A spectrophotometric method used in the determination of thorium was modified for the purpose of analyzing plutonium alloys which contained 0.01 to 0.8 percent thorium. Absorbance values were measured at 545 millimicrons for solutions containing thorium and thorin, the organic reagent added to form a colored complex with thorium in the presence of plutonium (III) . With plutonium-thorium 0.8 percent thorium, the average recovery of thorium was 99.6 +- 1.5 percent. For similar samples containing… more
Date: September 1954
Creator: Bergstresser, K. S. (Karl Samuel), 1909-2004 & Smith, Maynard E. (Maynard Elliott)
Item Type: Refine your search to only Report
open access

The Distribution of Tracer Plutonium and Fission Products Between Molten Uranium and Solid Uranium Oxide, Carbide, and Nitride

Description: "A study has been made of the distribution of tracer fission products and plutonium between small samples of molten uranium and solid uranium oxide, carbine, and nitride. The distribution showed the same behavior i general for all three materials: 1. The rare earth elements, Cs, Ba, and Sr were extracted primarily into the solid scrub phase. 2. Zirconium and Nb partially concentrated in the scrub phase. 3. Plutonium, Mo, and Ru tended to remain completely in the metal phase. The distribution… more
Date: September 15, 1954
Creator: Keneshea, F. J.; Saul, A. M. & Young, C. Y.
Item Type: Refine your search to only Report
open access

The effect of ground on the low-speed aerodynamics control, and control hinge-moment characteristics of a delta-wing-fuselage model with trailing-edge controls

Description: Report presenting an investigation to determine the effect of ground on the low-speed aerodynamic, control, and control hinge-moment characteristics of a 3-percent-thick, delta-wing-fuselage configuration. Aerodynamic forces and moments and hinge-moment data were obtained for a range of angles of attack, ground heights, and a designated Mach and Reynolds number.
Date: September 24, 1954
Creator: Scallion, William I.
Item Type: Refine your search to only Report
open access

Effect of yaw and angle of attack on pressure recovery and mass-flow characteristics of a rectangular supersonic scoop inlet at a Mach number of 2.71

Description: Report presenting an investigation of the effect of yaw and angle of attack on the total-pressure recovery and mass-flow characteristics of a rectangular supersonic scoop inlet designed to have low external drag at a Mach number of 2.7 and an angle of attack of 0 degrees. Total-pressure recovery and mass-flow data are presented for a Mach number of 2.71 at angles of yaw 0, 2.5, and 5 degrees and angles of attack of 0 and 5 degrees are provided.
Date: September 14, 1954
Creator: Comenzo, Raymond J. & Mackley, Ernest A.
Item Type: Refine your search to only Report
open access

Effects of diffuser and center-body length on performance of annular diffusers with constant-diameter outer walls and with vortex-generator flow controls

Description: Report presenting data for five diffusers tested with and without vortex-generator controls in order to determine the performance improvements attainable through the use of boundary-layer controls. Results regarding inlet conditions, axial inlet flow, and whirling inlet flow are provided.
Date: September 14, 1954
Creator: Wood, Charles C. & Higginbotham, James T.
Item Type: Refine your search to only Report
open access

Energy-Dependent Albedo

Description: From abstract: "Within the framework of age theory an expression is developed which represents the probability of a neutron being reflected with an energy loss corresponding to age, v, as a function of reflector thickness."
Date: September 20, 1954
Creator: Drummond, William E.
Item Type: Refine your search to only Report
open access

Estimate of Known Recoverable Reserves of Coking Coal in Mercer County, West Virginia

Description: Report issued by the Bureau of Mines over investigations of coking-coal reserves of Mercer County, West Virginia. Methods used, and measurements of coal reserves are listed. This report includes tables, and maps.
Date: September 1954
Creator: Wallace, Joseph J.; Dowd, James J.; Tavenner, William H.; Provost, John M.; Abernethy, R. F. & Reynolds, D. A.
Item Type: Refine your search to only Report
open access

Evaluation of Sampling Variables : Vessel C-102

Description: Purpose: "In order to determine the optimum procedure for sampling the coarse-feed tank (C-102) of the NP and MTR process, a systematic series of tests has been conducted to measure the extent of solution stratification and effect of air-sparging as a means of vessel homogenization."
Date: September 3, 1954
Creator: Loopstra, H. B.; Tingey, Fred H. & Vance, F. P.
Item Type: Refine your search to only Report
open access

Examination of Copper-Uranium Occurrences in the Willaha Area, Coconino County, Arizona

Description: Abstract: A study, consisting of field and laboratory work, was undertaken in an endeavor to establish possible structural mineralization controls associated with the copper-uranium occurrences in the Willaha area, Coconino County, Arizona. Uranium mineralization, apparent at present, is localized along small fissures and vugs and in certain beds and lenses of the middle member of the Kaibab formation(Permian). It is associated with copper and iron oxide staining. Though no definite ore control… more
Date: September 1954
Creator: Puttuck, Harry E.
Item Type: Refine your search to only Report
open access

Experimental heat-transfer and friction coefficients for air flowing through stacks of parallel flat plates

Description: Report presenting an investigation to obtain forced-convection heat-transfer and pressure-drop data for flow of air between electrically heated parallel flat plates stacked to form passages of short length-to-effective-diameter ratio. The primary purpose of the investigation is to determine the interference effects of the upstream stack of plates on the heat-transfer and friction characteristics of the downstream stack. Results regarding the plate temperature gradients, heat-transfer data, and … more
Date: September 19, 1954
Creator: Sams, Eldon W. & Weiland, Walter F., Jr.
Item Type: Refine your search to only Report
open access

Experimental Investigation of a Five-Stage Axial-Flow Research Compressor with Transonic Rotors in All Stages 1: Compressor Design

Description: Memorandum presenting a five-stage axial-flow compressor with all rotor rows operating with transonic relative inlet Mach numbers designed as a research unit to study the potentialities and problems arising from the compounding of transonic stages. The report presents all design values and procedures, blade-row velocity diagrams, and the selection of blade shapes.
Date: September 8, 1954
Creator: Sandercock, Donald M.; Kovach, Karl & Lieblein, Seymour
Item Type: Refine your search to only Report
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