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NACA Research Memorandums
192
Atomic Energy Commission Reports
78
NACA Technical Reports
33
Hanford Works Reports
24
BNL (Series)
21
Brookhaven National Laboratory Reports
21
Oak Ridge National Laboratory Reports
19
HW (Series)
18
GJBX
13
University of California Radiation Laboratory Reports
13
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386 Matching Results
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Geology and Ore Deposits of Yazzie Mesa, Apache County, Arizona with Recommendations for Exploration Drilling
Abstract: Yazzie Mesa was examined in May 1951, by the writer, assisted by R. C. Cutter. The mesa shows one main channel deposit and three minor channels. The main channel appears to be a northern extension of a channel deposit being worked by the Vanadium Corporation of America at their Monument No. 2 mine. Two samples taken on the south outcrop of the main channel assayed 0.16% U308 over 4.5 feet and 0.80% U308 over 1 foot. The area is recommended for 10,000 feet of exploration drilling. It is not intended to recommend this footage as a separate contract unit as this report covers only a small part of an area in which drilling will be recommended in forthcoming reports.
Date:
June 19, 1951
Creator:
Chester, John W.
Object Type:
Report
System:
The UNT Digital Library
Refrigeration System Used in Mercury Isotope Collections
From introduction: During 1948, the Isotope Research and Production Division undertook to obtain small quantities of nearly pure mercury isotopes by electromagnetic isotope separation. The possible use of a mercury isotope of even-numbered mass to establish an international standard of length required an isotopic purity greater than 99 per cent. It, became apparent that this degree of separation could only be achieved by preventing random diffusion of un-ionized mercury which otherwise would contaminate the isotope collectors.
Date:
December 19, 1949
Creator:
Duncan, F. R. & Cobb, W. G.
Object Type:
Report
System:
The UNT Digital Library
A Special Purpose Slide Rule for Computing Solid Angles
Abstract: The design and construction of a slide rule for calculating the solid angle subtended by a rectangle at a point located on a line perpendicular to the center of the rectangle are described.
Date:
September 19, 1957
Creator:
Knight, J. R. & Henry, H. F.
Object Type:
Report
System:
The UNT Digital Library
Boiling of Freon-114 in a Three-Foot Straight Tube Evaporator
Introduction: this report covers two series of tests run on a Freon evaporator containing a vertical copper tube having an outside diameter of 7/8 of an inch, heated externally for a length of 35 inches by steam condensing in a concentric jacket.
Date:
October 19, 1961
Creator:
Allen, Charles F.
Object Type:
Report
System:
The UNT Digital Library
International Geophysical Year Oceanographic Program of the Argentine Republic
The report is about the geophysical year oceanographic program of the Argentine Republic.
Date:
July 19, 1967
Creator:
Capurro, Luis R. A.
Object Type:
Report
System:
The UNT Digital Library
The Synthetic Liquid Fuel Potential of Georgia
Report documenting the suitability of Georgia for plant locations to produce synthetic liquid fuels, based on raw materials such as coal, natural gas, oil shales, and oil-impregnated strippable deposits.
Date:
February 19, 1951
Creator:
Ford, Bacon, and Davis
Object Type:
Report
System:
The UNT Digital Library
The U + 4 - U02 ++ Couple in H2SO , and the U + S - u + 4 Couple in HCl
Technical report: Measurements have been made on the equilibrium between Cu, Cu2+, U4+, and UO22+ in H2SO4 in an attempt to establish the value of the U4+ - UO22+ couple potential. The value of the formal potential for the U3+ - U4+ couple in 1N HCl at 0 degrees C was determined to be + 0.65 v.
Date:
March 19, 1946
Creator:
Cubicciotti, D.
Object Type:
Report
System:
The UNT Digital Library
Weldability of Hayes Alloy #25
Technical report describing the process to determine the fusion welding characteristics of Haynes Alloy #25 as applied to TLJ-100530, Corrosion Loops. Hayes Stellite Alloy #25 is a cobalt-base alloy for corrosion resistant high temperature applications. This material, when welded by the inert gas shielded tungsten arc method, produces sound ductile joints. Material thicknesses greater than 12 gauge require standard joint preparations, a V joint being preferred up to 1/4 inch and a U joint for greater thicknesses. Welding heat should be kept to a minimum followed by fast cooling. The molten metal is very fluid and may present difficulties when position welding.
Date:
May 19, 1959
Creator:
Rogers, S. L.
Object Type:
Report
System:
The UNT Digital Library
Spinning of Columbium & Columbium 1%- Zirconium Tubing
The following objectives were planned for this project. (1) Development of spinning data necessary for spinning Columbium and Columbium-1% Zirconium tubing from ingot, forged or welded tube blanks. (2) Determine mechanical & metallurgical properties of spun Columbium and Columbium-1% Zirconium tubing. (3) Determine dimensional and tolerance limits possible to attain on spun Columbium and Columbium-1% Zirconium tubing based on our present equipment, tooling limitations, and the spinning tests performed for objective No. 1.
Date:
January 19, 1961
Creator:
Barker, Wharton R.
Object Type:
Report
System:
The UNT Digital Library
The Heat of Solution of Uranium Tetrachloride in Aqueous Perchloric Acid Solutions
Abstract: "The heat of solution of UCl4 solid has been measured and found to change appreciably with changing concentration of H+ or ionic strength. The heat of hydrolysis of U+4 to form UOH+3 is probably of the order of +11 kcal per mole" (p. 1).
Date:
August 19, 1947
Creator:
Fontana, B. J.
Object Type:
Report
System:
The UNT Digital Library
Report of the Thirty-Seventh National Conference on Weights and Measures, 1952
Report of the annual conference on weights and measures, hosted by the U.S. National Bureau of Standards in Washington D.C. It includes conference proceedings, a list of attendees, information about committees and officers, and other reports or commentaries discussed at the meetings.
Date:
March 19, 1953
Creator:
United States. National Bureau of Standards.
Object Type:
Report
System:
The UNT Digital Library
Corrosivity of Uranyl Fluoride to Certain Metals
Abstract: "The results obtained from the tests conducted for the purpose of determining the corrosivity of a 30 percent-solution of uranyl fluoride to various metals indicate that stainless steels (type 302, 304, 321 and 316) have very good resistance; while monel, nickel and aluminum, respectively, exhibit diminishing resistance. Stainless steel, type 316, was the most resistant of the specimen tested."
Date:
September 19, 1946
Creator:
Little, L. F. & Susano, C. D.
Object Type:
Report
System:
The UNT Digital Library
Aerodynamic heating of rocket-powered research vehicles at hypersonic speeds
From Introduction: "The purpose of this paper is to present and discuss skin temperature measurements from two flight tests. Temperature measurements were obtained to a Mach number of 5.4 on the first flight and to a Mach number of 10.4 on the second flight."
Date:
July 19, 1955
Creator:
Piland, Robert O. & Collie, Katherine A.
Object Type:
Report
System:
The UNT Digital Library
Some Effects of Fluid in Pylon-Mounted Tanks on Flutter
Report presenting fluid-dynamics studies of a tank of fineness ratio 7.0 which was pylon mounted on a simplified two-dimensional flutter model in order to determine the effects of the fluid on flutter. The flutter speed was determined for three cases: with various amounts of water in the tank, with weights with the same mass and moment of inertia as the fluid considered to be a frozen solid, and with weights with the same mass and moment of inertia as the actual fluid. Results regarding the flutter speed, effects of inertia on flutter, and amplitude of flutter are provided.
Date:
July 19, 1955
Creator:
Reese, James R.
Object Type:
Report
System:
The UNT Digital Library
Rocket-engine throttling
An investigation of the performance and operating characteristics of two variable-thrust injectors over a wide thrust range using mixed oxides of nitrogen and ammonia. Specific impulse, characteristic velocity, thrust coefficient, and overall efficiency are presented as functions of thrust. A maximum thrust range of 12 during one run was obtained with a triplet impinging-jet injector.
Date:
December 19, 1955
Creator:
Tomazic, William A.
Object Type:
Report
System:
The UNT Digital Library
Design procedure for transpiration-cooled strut-supported turbine rotor blades
From Summary: "The procedure currently employed by the NACA Lewis Laboratory in the design of transpiration-cooled strut-supported turbine rotor blades is discussed. The strut is the internal blade supporting member and also serves to partition the blade into separate cooling-air passages. Orifices in the blade base, which meter the cooling-air to each internal passage, are used in conjunction with a constant chordwise permeability."
Date:
December 19, 1955
Creator:
Prasse, Ernst I. & Livingood, John N. B.
Object Type:
Report
System:
The UNT Digital Library
Preliminary investigation of effect on performance of dividing conical-spike nose inlets into halves at Mach numbers 1.5 to 2.0
Inserting a splitter plate in the subsonic diffuser caused a pressure-recovery loss of about 1 percent for an inlet with a long nearly constant-area throat section. The loss was due to the increased surface area. Another inlet, which had a comparatively rapid area increase immediately after the throat, experienced pressure-recovery losses of 5 and 6 percent at Mach numbers of 1.8 and 2.0, respectively, and about 1 percent at Mach 1.5.
Date:
December 19, 1955
Creator:
Allen, John L.
Object Type:
Report
System:
The UNT Digital Library
Performance and Component Frontal Areas of a Hypothetical Two-Spool Turbojet Engine for Three Modes of Operation
Engine performance is better for constant outer-spool mechanical-speed operation than for constant inner-spool mechanical-speed operation over most of the flight range considered. Combustor and afterburner frontal areas are about the same for the two modes. Engine performance for a mode characterized by a constant outer-spool equivalent speed over part of the flight range and a constant outer-spool mechanical speed over the rest of the flight range is better that that for constant outer-spool mechanical speed operation.
Date:
December 19, 1955
Creator:
Dugan, James F., Jr.
Object Type:
Report
System:
The UNT Digital Library
A Study of the Correlation Between Flight and Wind-Tunnel Buffeting Loads
Report presenting a comparison of the buffet loads measured on wind-tunnel models with loads measured in flight, which indicate that a simple strain-gage measurement can be used in wind tunnel testing that can be used to predict the wing buffet loads on the airplane. The technique appears to be usable for both unswept and swept configurations.
Date:
July 19, 1955
Creator:
Huston, Wilber B.; Rainey, A. Gerald & Baker, Thomas F.
Object Type:
Report
System:
The UNT Digital Library
Preliminary investigation at Mach number 1.9 of simulated wing-root inlets
Report presenting an experimental investigation to study several wing-root inlet configurations at Mach number 1.9. The inlets were of triangular and rectangular shape and external compression was provided by two-dimensional wedge surfaces. Results regarding the pressure-recovery and mass-flow data, effect of inlet side plates and curved diffusers, exit and inlet total-pressure distributions, improvement of exit total-pressure profiles, and inlet tests at zero flight speed are provided.
Date:
January 19, 1955
Creator:
Piercy, Thomas G. & Weinstein, Maynard I.
Object Type:
Report
System:
The UNT Digital Library
Additional experimental heat-transfer and durability data on several forced-convection, air-cooled, strut-supported turbine blades of improved design
Report presenting an investigation at the Lewis laboratory to develop air-cooled, strut-supported turbine blades. Six blades were investigated in a full-scale turbojet engine to obtain data on blade durability and blade-cooling effectiveness and strut temperature. Results regarding the heat-transfer investigation and blade-durability investigation are provided.
Date:
January 19, 1955
Creator:
Schum, Eugene F.
Object Type:
Report
System:
The UNT Digital Library
On the plane potential flow past a lattice of arbitrary airfoils
The two-dimensional, incompressible potential flow past a lattice of airfoils of arbitrary shape is investigated theoretically. The problem is treated by usual methods of conformal mapping in several stages, one stage corresponding to the mapping of the framework of the arbitrary line lattice and another significant stage corresponding to the Theodorsen method for the mapping of the arbitrary single wing profile into a circle. A particular feature in the theoretical treatment is the special handling of the regions at an infinite distance in front of and behind the lattice. Expressions are given for evaluation of the velocity and pressure distribution at the airfoil boundary. An illustrative numerical example is included.
Date:
November 19, 1943
Creator:
Garrick, I. E.
Object Type:
Report
System:
The UNT Digital Library
Performance of YJ73-GE-3 turbojet engine in altitude test chamber
Report presenting the steady-state performance of the YJ73-GE-3 turbojet engine in an altitude test chamber for a range of exhaust-nozzle areas, simulated altitudes, and Mach numbers. A method of performance calculation based on engine pumping characteristics is provided. Results regarding performance maps, pumping characteristics and performance prediction, thrust correlation, effect of inlet temperature on performance, calculated performance from pumping characteristics, and altitude-ignition characteristics are provided.
Date:
January 19, 1955
Creator:
Kaufman, Harold R. & Dobson, Wilbur F.
Object Type:
Report
System:
The UNT Digital Library
Theoretical Prediction of Pressure Distributions on Nonlifting Airfoils at High Subsonic Speeds
"Theoretical pressure distributions on nonlifting circular-arc airfoils in two-dimensional flows with high subsonic free-stream velocity are found by determining approximate solutions, through an iteration process, of an integral equation for transonic flow proposed by Oswatitsch. The integral equation stems directly from the small-disturbance theory for transonic flow. This method of analysis possesses the advantage of remaining in the physical, rather than the hodograph, variable and can be applied in airfoils having curved surfaces" (p. 1).
Date:
November 19, 1953
Creator:
Spreiter, John R. & Alksne, Alberta
Object Type:
Report
System:
The UNT Digital Library