Serial/Series Title
NACA Wartime Reports
106
NACA Technical Notes
90
NACA Research Memorandums
85
Atomic Energy Commission Reports
48
NACA Technical Memorandums
37
NACA Advanced Restricted Reports
35
NACA Memorandum Reports
33
NACA Technical Reports
23
NACA Advanced Confidential Reports
21
United States Bureau of Mines Reports
14
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428 Matching Results
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Intercooler cooling-air weight flow and pressure drop for minimum drag loss
Report presenting an analysis of the power losses in airplane flight of cross-flow plate and tubular intercoolers to determine the cooling-air weight flow and pressure drop that give minimum total power loss for any given cooling effectiveness. The investigation covers a range of flight conditions of altitude, airspeed, lift-drag ratio, supercharger-pressure ratio, and adiabatic efficiency.
Date:
April 1944
Creator:
Reuter, J. George & Valerino, Michael F.
System:
The UNT Digital Library
Review of Flight Tests of NACA C and D Cowlings on the XP-42 Airplane
Report presenting the results of flight tests of the performance and cooling characteristics of three NACA D cowlings and of a conventional NACA C cowling on the XP-42 airplane. The D cowling is, generally, characterized by the use of an annular inlet and diffuser section for the engine-cooling air. An increase in maximum speed was noted in the XP-42 airplane due to the change from a C cowling to a D cowling.
Date:
April 1943
Creator:
Johnston, J. Ford
System:
The UNT Digital Library
NACA Investigation of a Jet-Propulsion System Applicable to Flight
"Following a brief history of the NACA investigation of jet-propulsion, a discussion is given of the general investigation and analyses leading to the construction of the jet-propulsion ground-test mock-up. The results of burning experiments and of test measurements designed to allow quantitative flight-performance predictions of the system are presented and correlated with calculations. These calculations are then used to determine the performance of the system on the ground and in the air at various speeds and altitudes under various burning conditions. The application of the system to an experimental airplane is described and some performance predictions for this airplane are made" (p. 1).
Date:
April 1944
Creator:
Brown, Clinton E.
System:
The UNT Digital Library
Wind-Tunnel Procedure for Determination of Critical Stability and Control Characteristics of Airplanes
"This report outlines the flight conditions that are usually critical in determining the design of components of an airplane which affect its stability and control characteristics. The wind-tunnel tests necessary to determine the pertinent data for these conditions are indicated, and the methods of computation used to translate these data into characteristics which define the flying qualities of the airplane are illustrated" (p. 1).
Date:
April 1944
Creator:
Goett, Harry J.; Jackson, Roy P. & Belsley, Steven E.
System:
The UNT Digital Library
Nitrided-steel piston rings for engines of high specific power
Report presenting testing of several designs of nitrided-steel piston rings under variable conditions of output. Testing indicated the importance of good surface finish and conformity of the ring to the bore. Results regarding temperature tests, single-cylinder-engine tests, and multicylinder-engine tests are provided.
Date:
April 1944
Creator:
Collins, John H., Jr.; Bisson, Edmond E. & Schmiedlin, Ralph F.
System:
The UNT Digital Library
Some Recent Contributions to the Study of Transition and Turbulent Boundary Layers
Report presenting a paper in two parts about transition and turbulent boundary layers. The first part reviews the current problem of the instability of laminar boundary layers. The second part reviews the current state of knowledge of the mechanics of turbulent boundary layers and of the methods now being used for fundamental studies of the turbulent fluctuations in turbulent boundary layers.
Date:
April 1947
Creator:
Dryden, Hugh L.
System:
The UNT Digital Library
Laminar-boundary-layer oscillations and transition on a flat plate
Report presenting an investigation of oscillations in the laminar boundary layer on a flat plate and their relation to transition to turbulent flow. The characteristics of boundary-layer oscillations were studied most successfully when the oscillations were artificially produced by a vibrating ribbon placed in the boundary layer near the surface. A review of theory regarding laminar-boundary-layer oscillations is provided.
Date:
April 1943
Creator:
Schubauer, G. B. & Skramstad, H. K.
System:
The UNT Digital Library
Design of Nozzles for the Individual Cylinder Exhaust Jet Propulsion System
Report presenting an examination of the design of exhaust-stack nozzles for individual cylinder exhaust-gas jet propulsion and the results of tests on the effect of nozzle area on jet thrust and engine power. A satisfactory method of correlatig the test data for various engine-operating conditions is developed.
Date:
April 1941
Creator:
Pinkel, Benjamin; Turner, L. Richard & Voss, Fred
System:
The UNT Digital Library
Flight Tests of Several Exhaust-Gas-to-Air Heat Exchangers in the B-17F Airplane
Report presenting flight testing of seven exhaust-gas-to-air heat exchangers on a B-17F airplane to determine their performance characteristics and to investigate their flame-suppression qualities. Testing was conducted to secure performance data of heat exchangers which might be suitable for use in the thermal ice-prevention and cabin-heating system of the heavy bomber-type airplanes.
Date:
April 1944
Creator:
Look, Bonne C. & Selna, James
System:
The UNT Digital Library
Coal Carbonization: Carbonizing Properties of Medium-Volatile Coals of Different Types
Report issued by the U.S. Bureau of Mines on the characteristics of different coal varieties after carbonization. The properties of these different coals are presented. This report includes tables, and photographs.
Date:
April 1944
Creator:
Reynolds, D. A. & Davies, J. D.
System:
The UNT Digital Library
Georgia Mica Spots: Cherokee, Upson, Lamar, and Monroe Counties
Report issued by the Bureau of Mines over studies of mica deposits throughout four counties in Georgia. Descriptions of the physical features of the mines, and deposits are presented. This report includes tables, maps, and photographs.
Date:
April 1948
Creator:
Beck, William A.
System:
The UNT Digital Library
Mining Program: Bureau of Mines Oil-Shale Project, Rifle, Colorado
Report issued by the Bureau of Mines on the development of efficient mining methods for producing oil shale. Characteristics of the oil shale deposits of the Green River are presented. The results of core drilling and sampling in this area are also listed. This report includes tables, illustrations, maps, and photographs.
Date:
April 1948
Creator:
Gardner, E. D.
System:
The UNT Digital Library
Investigation of Meta-Anthracite in Newport and Providence Counties, Rhode Island: Petrography, Chemical Characteristics, and Geology of Deposits: I. Investigation of the Field and the Physical and Chemical Characteristics of the Deposits; II. Preliminary Geologic Study of the Portsmouth and Cranston Areas, Rhode Island; III. General Conclusions
Report issued by the Bureau of Mines over studies conducted on the meta-anthracite of Rhode Island. The physical and chemical characteristics, geology, and petrography of the deposits are presented in three parts. The methods used in the study are also listed. This report includes tables, maps, photographs, and illustrations.
Date:
April 1948
Creator:
Toenges, Albert L.; Turnbull, Louis A.; Neale, Arthur; Schopf, J. M.; Abernethy, R. F. & Quinn, Alonzo W.
System:
The UNT Digital Library
Flood-Prevention Projects at Pennsylvania Anthracite Mines: Progress Report for Fiscal Year Ended June 30, 1947
Report issued by the Bureau of Mines over the progress made on flood prevention in anthracite mines. As stated in the report, "the broad objective of the investigative work was to obtain factual data on: 1. anthracite reserves of Pennsylvania, 2. underground water pools, 3. barrier pillars, 4. the "buried valley" of the Susquehanna River, and 5. infiltration of surface water into underground mine workings" (p. 4). This report includes tables, graphs, maps, photographs, and illustrations.
Date:
April 1948
Creator:
Ash, S. H.; Cassap, W. E.; Eaton, W. L.; Hughes, Karl; Romischer, W. M. & Westfield, James
System:
The UNT Digital Library
Special Studies of Reservoir Oils in Naval Petroleum Reserve No. 1, Elk Hills Field, California
Report from the U.S. Bureau of Mines on studies conducted on the reservoir oils of Elk Hills field. Methods and instrumentation used in the studies are presented. This report includes tables, graphs, and maps.
Date:
April 1947
Creator:
Cook, Alton B. & Shea, G. B.
System:
The UNT Digital Library
Investigation of Coal Deposits in the Coal Creek District, Gunnison County, Colorado: Progress Report 1
Report issued by the Bureau of Mines on studies of coal deposits of the Coal Creek district. The physicality, geology, and characteristics of samples are listed. This report includes tables, and a map.
Date:
April 1947
Creator:
Toenges, Albert L.; Turnbull, Louis A.; Davis, J. D. & Reynolds, D. A.
System:
The UNT Digital Library
Work of the Safety Division, Fiscal Year 1942
Report issued by the U.S. Bureau of Mines on the investigative and educational work done by the Safety Division during 1942. Accident prevention methods and safety incentives are presented. These include first-aid and mine rescue training programs. This report includes tables, and photographs.
Date:
April 1943
Creator:
United States. Bureau of Mines. Safety Division.
System:
The UNT Digital Library
Diesel Engines Underground: [Part] 4. Effect on Composition of Exhaust Gas of Variables Influencing Fuel Injection
Report issued by the Bureau of Mines over diesel engine operations. As stated in the introduction, "it is the purpose of this report to present such data and to reemphasize the importance of adequate maintenance for diesel engines used underground" (p. 2). This report includes tables, and illustrations.
Date:
April 1943
Creator:
Holtz, John C.; Berger, L. B.; Elliott, M. A. & Schrenk, H. H.
System:
The UNT Digital Library
Exploration of Stiner and Bunch Hollow Zinc Properties, Powell River Area, Union and Claiborne Counties, Tennessee
Report issued by the U.S. Bureau of Mines on the exploration of zinc ore deposits surrounding the Powell River area in Tennessee. Drilling methods and ore concentrates are presented. This report includes tables, and maps.
Date:
April 1946
Creator:
Sayrs, Richard L.
System:
The UNT Digital Library
Survey of Tin in California
Report issued by the U.S. Bureau of Mines on a survey of tin deposits in California. A focus on tin deposits in Kern and San Bernardino Counties are presented. The report includes two maps.
Date:
April 1946
Creator:
Bedford, Robert H. & Johnson, F. T.
System:
The UNT Digital Library
Exploration of Red Mountain Chromite Deposits, Kenai Peninsula, Alaska
Report issued by the U.S. Bureau of Mines investigating the chromite deposits of Red Mountain on Kenai Peninsula, Alaska. Research methods include surface sampling and core drilling. The report includes tables, maps, and illustrations.
Date:
April 1946
Creator:
Rutledge, Franklin A.
System:
The UNT Digital Library
The solvent-extraction performance of small scale redox IA columns using Fenske helix packing, ammonium nitrate salting agent, and unirradiated uranium
A report which deals with the Redox IA Column studies made in small-scale columns packed with 3/16-in. Fenske helices and using NH4NO3 salting agent.
Date:
April 13, 1949
Creator:
Woodfield, F. W.; Bradley, J. G.; Switzer, W. O. & Merrill, E. T.
System:
The UNT Digital Library
Corrosion Tests on Carboloy in Redox Process Solutions
Introduction: Static, total immersion corrosion tests were carried out at room temperatures with Carboloy grades 44-A, 78, 907, X-3119-A and X-3119-B in Redox process solutions (ANL, June 1, 1949 Flowsheet) 1AX, 1AF, and 1AS.
Date:
April 6, 1949
Creator:
Koenig, W. W.
System:
The UNT Digital Library
The Critical Mass of a Spherical Reactor with Variable Intrinsic Buckling
Abstract: "The critical mass both of an untamped and water-tamped sphere with parabolic radial variation of the intrinsic buckling is calculated by a perturbation method. The result is applied to finding the minimum critical mass of plutonium in water suspension with infinite water temper; the calculations show that the minimum critical mass at constant concentration may be reduced by an amount of the order of 7.6% when the concentration of plutonium is permitted to vary throughout the suspension."
Date:
April 28, 1949
Creator:
Muller, G. M.
System:
The UNT Digital Library