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NACA Research Memorandums
180
Atomic Energy Commission Reports
52
NACA Technical Reports
27
University of California Radiation Laboratory Reports
26
Hanford Works Reports
22
HW (Series)
19
Oak Ridge National Laboratory Reports
19
UCRL (Series)
14
BNL (Series)
13
Brookhaven National Laboratory Reports
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353 Matching Results
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Thorium Breeder Reactor Evaluation. Part I. Fuel Yield and Fuel Cycle Costs in Five Thermal Breeders
The performances of aqueous-homogeneous (AHBR), molten-salt (MSBR), liquid-bismuth (LBBR), gas cooled graphite-moderated (GGBR), and deuterium-moderated gas-cooled (DGBR) breeder reactors were evaluated in respect to fuel yield, fuel cycle costs, and development status. A net electrical plant capability of 1000 Mwe was selected, and the fuel and fertile streams were processed continuously on-site.
Date:
May 24, 1961
Creator:
Alexander, L. G.; Carter, W. L.; Chapman, R. H.; Kinyon, B. W.; Miller, J. W. & Van Winkle, R.
Object Type:
Report
System:
The UNT Digital Library
Thorium Breeder Reactor Evaluation. Part I. Fuel Yield and Fuel Cycle Costs in Five Thermal Breeders. Appendices
The performances of aqueous-homogeneous (AHBR), molten-salt (MSBR), liquid-bismuth (LBBR), gas-cooled graphite-moderated (GCBR), and deuterium-moderated gas-cooled (DGBR) breeder reactors were evaluated in respect to fuel yield, fuel cycle costs, and development status. A net electrical plant capability of 1000 Mwe was selected, and the fuel and fertile streams were processed continuously on-site.
Date:
May 24, 1961
Creator:
Alexander, L. G.; Carter, W. L.; Chapman, R. H.; Kinyon, B. W.; Miller, J. W. & Van Winkle, R.
Object Type:
Report
System:
The UNT Digital Library
Drag characteristics of rectangular and swept-back NACA 65-009 airfoils having aspect ratios of 1.5 and 2.7 as determined by flight tests at supersonic speeds
Report presenting tests to determine the effects of sweepback angle and aspect ratio on the drag of an NACA 65-009 airfoil at supersonic speeds. The results indicated that for the range of Mach numbers investigated, increasing the sweepback angle and decreasing the aspect ratio reduced the value of the wing drag coefficient.
Date:
February 24, 1947
Creator:
Alexander, Sidney R. & Katz, Ellis
Object Type:
Report
System:
The UNT Digital Library
Heat of Combustion of the Product Formed by the Reaction of Acetylene and Diborane (LFPL-CZ-3)
The heat of combustion of the product formed by the reaction acetylene and diborane was found to be 20,100 +/- 100 Btu per pound for the reaction of liquid fuel to gaseous carbon dioxide, gaseous water, and solid boric oxide. The measurements were made in a Parr oxygen-bomb calorimeter, and chemical analyses both of the sample and of the combustion products indicated combustion in the bomb calorimeter to have been 97 percent complete. The estimated net heat of combustion for complete combustion would therefore be 20,700 +/- 100 Btu per pound.
Date:
October 24, 1957
Creator:
Allen, Harrison, Jr. & Tannenbaum, Stanley
Object Type:
Report
System:
The UNT Digital Library
Application of one part of Von Karman's two-dimensional transonic similarity law to drag data of NACA 65-series wings
Report presenting the use of Von Karman's two-dimensional transonic similarity law as applied to drag data of three different thickness wings with NACA 65-series sections and aspect ratios of 7.6 over a range of Mach numbers. The correlation was found to be satisfactory, with results better in the subsonic range than in the supersonic range.
Date:
August 24, 1948
Creator:
Amer, Kenneth B.
Object Type:
Report
System:
The UNT Digital Library
High-Speed Wind-Tunnel Tests of a Twin-Fuselage Pursuit Airplane
Report discussing the aerodynamic characteristics of a twin-fuselage pursuit airplane model, especially at high speeds. Information about the force data and critical Mach numbers for parts of the model is provided. Suggestions for increasing the Mach number of divergence by making modifications to the wing-fuselage fillets and external shape of the radiator are also included.
Date:
April 24, 1946
Creator:
Anderson, Joseph L. & Tkac, Victor B.
Object Type:
Report
System:
The UNT Digital Library
Correlation of Flight and Wind-Tunnel Measurements of Roll-Off in Low-Speed Stalls on a 35 Degree Swept-Wing Aircraft
Memorandum presenting flight and wind-tunnel measurements made of the low-speed stalling characteristics on a swept-wing jet aircraft. Included in the study are the effects on the stalling characteristics of a number of wing modifications. Results regarding the roll-off characteristics and maximum lift and stalling characteristics are provided.
Date:
September 24, 1953
Creator:
Anderson, Seth B.
Object Type:
Report
System:
The UNT Digital Library
Flight Measurements of the Flying Qualities of a Lockheed P-80A Airplane (Army No. 44-85099): Lateral- and Directional-Stability and Control Characteristics
"This report contains the flight-test results of the lateral and directional-stability and control phase (including tests with wing-tip tanks) of a general flying-qualities investigation of the Lockheed P-80A airplane (Army No. 44-85099). These tests were conducted at indicated airspeeds up to 494 miles per hour (0.691 Mach number) at low altitude and up to 378 miles per hour (0.816 Mach number) at high altitude. These tests showed that the flying qualities of the airplane were for the most part in accordance with the requirements of the Army Air Forces Stability and Control Specifications" (p. 1).
Date:
October 24, 1947
Creator:
Anderson, Seth B. & Cooper, George E.
Object Type:
Report
System:
The UNT Digital Library
Flight measurements of the wing-dropping tendency of a straight-wing jet airplane at high subsonic Mach numbers
From Summary: "Flight tests were conducted on a straight-wing fighter-type jet airplane to investigate the lateral-control characteristics associated with a wing-dropping tendency encountered at high subsonic Mach numbers. The chief factors found to account directly for the wing-dropping tendency were a progressive reduction in aileron-control effectiveness with increasing Mach number, and an increase in effective dihedral above a Mach number of 0.8 which made the lateral trim particularly sensitive to small changes in sideslip angle."
Date:
April 24, 1951
Creator:
Anderson, Seth B.; Ernst, Edward A. & Van Dyke, Rudolph D., Jr.
Object Type:
Report
System:
The UNT Digital Library
Uranium Concentration Meter
From abstract; "Two basic instruments were developed for determining the concentration of uranium in solutions. Both instruments detect the gamma activity present in a sample solution, and interpret this analysis into direct presentation as parts per million."
Date:
September 24, 1956
Creator:
Arnett, Orville
Object Type:
Report
System:
The UNT Digital Library
Thorex Thorium Nitrate Product Specifications
Activity and ionic impurity specifications are presented for Thorex thorium nitrate products. Two sets of specifications are given, one set for direct handling during refabrication of production reactor thorium metal slugs and the second for refabrication of future power reactor thorium metal elements by semi-remote technics. Consideration was given to the health hazard problems associated with each process step between the Thorex process and final refabricated source material in order to arrive at these specifications.
Date:
May 24, 1956
Creator:
Arnold, E. D. & Wischow, R. P.
Object Type:
Report
System:
The UNT Digital Library
Results of a Force Test of Four Configurations of the Hi-Lo Instrumented and Chaff Rockets in the Sandia Corporation 12 x 12 inch Transonic Wind Tunnel (Program III-46)
Abstract: Force, moment, and center of pressure information are presented for four models of the Hi-Lo configuration.
Date:
September 24, 1959
Creator:
Arnold, J. W.
Object Type:
Report
System:
The UNT Digital Library
The Surface Preparation of Uranium for X-Ray Diffraction Studies by the Spectrometer Technique
A report which describes a number of experiments conducted to compare the effects of different methods of surface preparation on x-ray diffraction patterns of uranium obtained by the spectrometer technique.
Date:
March 24, 1949
Creator:
Bach, J. H. & Burnham, J. B.
Object Type:
Report
System:
The UNT Digital Library
Biological Survey of Texas
From introduction: "Report on the biological survey of Texas conducted over a number of years through collection of information and specimens. Focus on life zones and their subdivisions and on the mammals and reptiles of the state."
Date:
October 24, 1905
Creator:
Bailey, Vernon
Object Type:
Report
System:
The UNT Digital Library
Preliminary Results of British Nene II Engine Altitude-Chamber Performance Investigation. I - Altitude Performance Using Standard 18.75-Inch-Diameter Jet Nozzle, 1, Altitude Performance Using Standard 18.75-Inch-Diameter Jet Nozzle
An investigation is being conducted to determine the altitude performance characteristics of the British Nene II engine and its components. The present paper presents the preliminary results obtained using a standard jet nozzle. The test results presented are for conditions simulating altitudes from sea level to 60,000 feet and ram pressure ratios from 1.0 to 2.3. These ram pressure ratios correspond to flight Mach numbers between zero and 1.16 assuming a 100 percent ram recovery.
Date:
May 24, 1948
Creator:
Barson, Zelmar & Wilsted, H. D.
Object Type:
Report
System:
The UNT Digital Library
Air-Flow Behavior Over the Wing of an XP-51 Airplane as Indicated by Wing-Surface Tufts at Subcritical and Supercritical Speeds
Report presenting the air-flow behavior over the wing of an XP-51 airplane including photographs of tufts attached to the wing surface and chordwise pressure distributions. A comparison of tuft studies from flight results are compared with results from wind-tunnel testing. Three types of flow were observed: steady flow, unsteady flow, and break-away flow are provided.
Date:
April 24, 1947
Creator:
Beeler, De E.
Object Type:
Report
System:
The UNT Digital Library
Free-Spinning-Tunnel Investigation of a 1/20-Scale Model of the McDonnell XF2H-1 Airplane
A spin-recovery investigation has been conducted in the Langley 20-foot free-spinning tunnel on a 20-scale model modified to represent the McDonnell XF2H-1 airplane. The project included tests both with tip tanks installed and with the tanks removed. The results indicated that the recovery characteristics of the airplane would be satisfactory for all loadings by normal recovery technique (full reversal of the rudder, followed 1/2 turn later by movement of the elevator down). The rudder pedal and the elevator stick forces likely to be encountered in a spin should be within the capabilities of the pilot.
Date:
June 24, 1949
Creator:
Berman, Theodore
Object Type:
Report
System:
The UNT Digital Library
Supplementary Free-Spinning-Tunnel Investigation of a 1/30-Scale Model of the Grumman XF10F-1 Airplane in the Swept-Wing Configuration with Slats Extended
"A supplementary investigation has been conducted in the Langley 20-foot free-spinning tunnel of a 1/30 -scale model of the Grumman XF10F-1 airplane to determine what effect full-span slats would have on the spin-recovery characteristics of the swept-wing version of the XF10F-1 airplane, which had previously been indicated as possessing undesirable spin-recovery characteristics without slats. The effects of extended nose-wheel doors and of fairing the air-duct inlets were also determined" (p. 1).
Date:
July 24, 1951
Creator:
Berman, Theodore & Klinar, Walter J.
Object Type:
Report
System:
The UNT Digital Library
Integral Neutron Thermalization, Annual Summary Report: October 1962-September 1963
Introduction: This report describes the Integral Neutron Thermalization activities at General Atomic from October 1, 1962, through September 30, 1963.
Date:
January 24, 1964
Creator:
Beyster, J. R.; Brown, J. R.; Koppel, J. U.; Neill, J. M.; Russell, J. L., Jr.; Trimble, G. D. et al.
Object Type:
Report
System:
The UNT Digital Library
Abstracts Pertaining to Seaplanes
Report discussing about 400 references pertaining to the hydrodynamic design of seaplanes have been compiled, and the information is presented in the form of abstracts classified under six main headings.
Date:
July 24, 1947
Creator:
Bidwell, Jerold M. & King, Douglas A.
Object Type:
Report
System:
The UNT Digital Library
The Photoproduction of Mesons from Hydrogen
In an effort to gain information on the nature of the photon-meson and photon-nucleon interaction, a study of the artificial production of mesons by photons has been made at the Berkeley synchrotron. The major effort of this research was concentrated on a measurement of the energy and angular distribution of u+-mesons produced when the photons strike a target of liquid hydrogen. Detection of the mesons is accomplished electronically by the technique of delayed coincidence.
Date:
August 24, 1950
Creator:
Bishop, Amasa Stone
Object Type:
Report
System:
The UNT Digital Library
Effect of three flame-holder configurations on subsonic flight performance of rectangular ram jet over range of altitudes
Report presenting a flight investigation on a rectangular ram jet over a range of fuel air ratios, combustion chamber inlet velocities, and pressure altitudes. A comparative study to determine the effects of altitude, combustion-chamber-inlet velocity, and fuel-air ratio on starting characteristics, minimum blow-out limits, combustion efficiency, gas total-temperature ratio, and net-thrust coefficient for three flame holders was also conducted.
Date:
November 24, 1948
Creator:
Black, Dugald O. & Messing, Wesley E.
Object Type:
Report
System:
The UNT Digital Library
Hot Press Canning of Thorium
A process for hot-press canning of unplated thorium cores in aluminum jackets was developed using wafers of thorium and aluminum for diffusion and bonding studies.
Date:
March 24, 1955
Creator:
Bloomster, C. H.
Object Type:
Report
System:
The UNT Digital Library
Comparative Analysis of ANL High Purity Uranium
In the course of the development at Argonne of high purity uranium metal in ingot form, some questions arose as to the validity of the chemical analyses of some of the impurities (particularly those for carbon, boron, and silicon), with one analytical laboratory reporting concentrations in some instances of an order of magnitude greater than another laboratory. Since the low concentrations of impurities in this material involved, in some cases, the development of modified analytical procedures and standards, it was decided to check these discrepancies by having identically prepared samples analyzed by several AEC and associated laboratories. This report is a compilation of the results obtained.
Date:
September 24, 1953
Creator:
Blumenthal, B. & Chiswik, H. H.
Object Type:
Report
System:
The UNT Digital Library