Collection
Technical Report Archive and Image Library
405
National Advisory Committee for Aeronautics Collection
337
Texas Attorney General Opinions
241
Office of Scientific & Technical Information Technical Reports
76
TRAIL Microcard Collection
49
World War Two Collection
20
World War Two Newsmaps
18
Government Documents A to Z Digitization Project
16
Texas State Publications
15
USDA Farmers' Bulletins
8
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777 Matching Results
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100-300 Area program meeting of May 7, 1946
None
Date:
May 7, 1946
Creator:
Kidder, C. P.
Object Type:
Report
System:
The UNT Digital Library
100 Areas: (For technical progress letter No. 95), April 23--29
Reported are: physics (B Pile, D Pile, F Pile, general physics); and water, corrosion and engineering (process water control and pressure drop studies, corrosion, graphite expansion).
Date:
May 3, 1946
Creator:
Jordan, W. E.
Object Type:
Report
System:
The UNT Digital Library
100 Areas: (For Technical Progress Letter No. 96), April 30--May 6
None
Date:
May 10, 1946
Creator:
Jordan, W. E.
Object Type:
Report
System:
The UNT Digital Library
100 Areas: (For Technical Progress Letter No. 97), May 7--13
Physics information for the D and F piles is presented. Thermal conductivity, reactivity, and irradiation levels are included. Concerning the cooling systems: process water control, pressure drip studies, purging studies, corrosion, and gun barrel clearance of expanded graphite are discussed. (GHH)
Date:
May 17, 1946
Creator:
Jordan, W. E.
Object Type:
Report
System:
The UNT Digital Library
100 Areas: (For technical progress letter No. 98), May 14--May 20
This technical progress report details 100 Area activities for the time period of May 14 through May 20, 1946.
Date:
May 24, 1946
Creator:
Jordan, W. E.
Object Type:
Report
System:
The UNT Digital Library
100 Areas: (For technical progress letter No. 99), May 21--May 27
This report details 100 Area reactor operation for the time period of May 21 through May 27, 1946.
Date:
May 31, 1946
Creator:
Jordan, W. E.
Object Type:
Report
System:
The UNT Digital Library
100 Areas Technical Activities Report - Engineering, April 1947
This is the first of a series of monthly reports covering details of the work of the Engineering Group of the Pile Technology Section of the Technical Department. The monthly Slug Inspection Report is being discontinued as a separate document and is being incorporated in this group report. Included is work on corrosion and blistering; graphite expansion; and irradiation studies.
Date:
May 21, 1947
Creator:
Woods, W. K.
Object Type:
Report
System:
The UNT Digital Library
100 Areas technical activities report: Physics, April 1947
This monthly report details Physics Department 100 Area technical activities for the month of April 1947.
Date:
May 20, 1947
Creator:
Gast, P. F.
Object Type:
Report
System:
The UNT Digital Library
100-B unit purge May 20, 1945
None
Date:
May 28, 1945
Creator:
Dahlen, P. A.
Object Type:
Report
System:
The UNT Digital Library
100-F area unit purge, May 3, 1945
This report discusses the pressure drop on the 100-F unit, as measured on the eight pressure drop tubes, which had increased to 24 lbs./in.{sup 2} above base by May 2. The unit was shut down on May 3 to purge with 50 ppm solids for 1.1 hr. and to take care of necessary maintenance work.
Date:
May 22, 1945
Creator:
Kiddker, C. P.
Object Type:
Report
System:
The UNT Digital Library
100-F unit purge May 20, 1945
None
Date:
May 29, 1945
Creator:
Dahlen, P. A.
Object Type:
Report
System:
The UNT Digital Library
Acceleration Measurements During Landing in Rough Water of a 1/7-Scale Dynamic Model of Grumman XJR2F-1 Amphibian - Langley Tank Model 212: TED No. NACA 2378
From Summary: "Tests of a 1/7 size model of the Grumman XJR2F-1 amphibian were made in Langley tank no.1 to examine the landing behavior in rough water and to measure the normal and angular accelerations experienced by the model during these landings. All landings were made normal to the direction of wave advance, a condition assumed to produce the greatest accelerations. Wave heights of 4.4 and 8.0 inches (2.5 and 4.7 ft, full size) were used in the tests and the wave lengths were varied between 10 and 50 feet (70 and 350 ft, full size)."
Date:
May 6, 1947
Creator:
Land, Norman S. & Zeck, Howard
Object Type:
Report
System:
The UNT Digital Library
Accident Experience: Iron-Ore Mines, Lake Superior District, 1940-43
Report issued by the U.S. Bureau of Mines discussing the iron-ore mining accident experience in the Lake Superior District. Frequency and severity rates of accidents between 1940 and 1943 are presented. This report includes tables.
Date:
May 1945
Creator:
Cash, Frank E. & Larsen, Reuben D.
Object Type:
Report
System:
The UNT Digital Library
Aerodynamic characteristics at high speeds of related full-scale propellers having different blade-section cambers
From Summary: "Wind-tunnel tests of a full-scale two-blade NACA 10-(10)(08)-03 (high camber) propeller have been made for a range of blade angles from 20 degrees to 55 degrees at airspeeds up to 500 miles per hour. The results of these tests have been compared with results from previous tests of the NACA 10-(3) (08)-03 (low camber) and NACA 10-(5)(08)-03 (medium camber) propellers to evaluate the effects of blade-section camber on propeller aerodynamic characteristics."
Date:
May 6, 1948
Creator:
Maynard, Julian D. & Salters, Leland B., Jr.
Object Type:
Report
System:
The UNT Digital Library
Aerodynamic Characteristics of a 42 Degree Swept-Back Wing With Aspect Ratio 4 and NACA 64(Sub 1)-112 Airfoil Sections at Reynolds Numbers From 1,700,000 to 9,500,000
Report discussing testing on a 42 degree swept-back wing to determine its low-speed aerodynamic characteristics in pitch and yaw at high Reynolds numbers. The main effect of increasing the Reynolds number was delayed wing stalling to higher angles of attack. Roughness on the wing leading edge also had a large adverse effect on lift, drag, and pitching-moment characteristics at higher Reynolds numbers.
Date:
May 23, 1947
Creator:
Neely, Robert H. & Conner, D. William
Object Type:
Report
System:
The UNT Digital Library
Aerodynamic Characteristics of a Portion of the Horizontal Tail from a Douglas C-74 Airplane with Fabric-Covered Elevators
"A Douglas C-74 airplane, during a test dive at about 0.525 Mach number, experienced uncontrollable longitudinal oscillations sufficient to cause shedding of the outer wing panels and the subsequent crash of the airplane. Tests of a section of the horizontal tail plane from a C-74 airplane were conducted in the Ames 16-foot high-speed wind tunnel to investigate the possibility of the tail as a contributing factor to the accident. The results of the investigations of fabric-covered elevators in various conditions of surface deformation are presented in this report" (p. 1).
Date:
May 6, 1947
Creator:
Perone, Angelo & Berthold, Cecil L.
Object Type:
Report
System:
The UNT Digital Library
Aerodynamic Characteristics of Several NACA Airfoil Sections at Seven Reynolds Numbers From 0.7 X 10(Exp 6) to 9.0 X 10(Exp 6)
Report presenting an investigation of the two-dimensional aerodynamic characteristics of several NACA airfoil sections at four Reynolds numbers. Results regarding the minimum drag, maximum lift, lift-curve slope, and angle of zero lift and pitching moment are provided.
Date:
May 27, 1948
Creator:
Loftin, Laurence K., Jr. & Poteat, M. Irene
Object Type:
Report
System:
The UNT Digital Library
Aerodynamic study of a wing-fuselage combination employing a wing swept back 63 degrees: Effects of split flaps, elevons, and leading-edge devices at low speed
Report presenting an investigation to evaluate the effects of split flaps, elevons, sharp leading edges, drooped-nose flaps, and extended-nose flaps on the lift, drag, and pitching-moment characteristics at low speed of a wing-fuselage combination with a wing with the leading edge swept back 63 degrees and an aspect ratio of 3.5. Results regarding the plain wing and wing-fuselage combinations, Reynolds number, split flaps, elevons, leading-edge devices, and highest lift coefficient attained before longitudinal instability are provided.
Date:
May 19, 1949
Creator:
Hopkins, Edward J.
Object Type:
Report
System:
The UNT Digital Library
Aerodynamic study of a wing-fuselage combination employing a wing swept back 63 degrees: Investigation at a Mach number of 1.53 to determine the effects of cambering and twisting the wing for uniform load at a lift coefficient of 0.25
Testing was performed at Mach number 1.53 with a wing-fuselage combination with a wing with 63 degrees leading-edge sweep, an aspect ratio of 3.46, and a taper ratio of 0.25. The wing had an NACA 64A005 thickness distribution parallel to the plane of symmetry and was cambered and twisted. Results regarding the comparison of lift, drag, and pitching-moment characteristics of WF-63c and WF-63, effects of sweep, and effects of Reynolds number are provided.
Date:
May 6, 1949
Creator:
Madden, Robert T.
Object Type:
Report
System:
The UNT Digital Library
Aircraft radio shop practice.
Discusses maintenance and repair of the component parts of aircraft radio equipment, and the correct use of tools.
Date:
May 1, 1942
Creator:
United States. War Department.
Object Type:
Book
System:
The UNT Digital Library
Altitude-wind-tunnel investigation of AN-F-58 fuel in experimental version of J47 turbojet engine
An altitude-wind-tunnel investigation of the performance of AN-F-58 and AN-F-32 fuels in an experimental turbojet engine was conducted over a range of simulated altitudes and flight Mach numbers. Combustion efficiencies obtained with AN-F-58 and AN-F-32 fuels were approximately equal. The minimum-speed altitude operational limit was essentially the same with either AN-F-58 or AN-F-32 fuel. Starting characteristics of the two fuels were approximately the same at low wind milling speeds. Visual observation showed no apparent differences in the carbon-deposition rates of AN-F-58 and AN-F-32 fuels.
Date:
May 2, 1949
Creator:
Meyer, Carl L.
Object Type:
Report
System:
The UNT Digital Library
Altitude-wind-tunnel investigation of thrust augmentation of a turbojet engine II: performance with water injection at compressor inlet
Report presenting testing of a standard turbojet engine by water injection at the inlet of the axial-flow compressor in the altitude wind tunnel. Engine performance at 7600 rpm was obtained over a wide range of water-air-pressure ratios and ram-pressure ratios. Results regarding the engine-component performance are also provided.
Date:
May 19, 1947
Creator:
Dietz, Robert O. & Fleming, William A.
Object Type:
Report
System:
The UNT Digital Library
Analysis for Oxide in Thorium Metal
Abstract. to estimate the oxygen picked up by thorium in casting a rapid method of running the acid insoluble content was developed. the quickest procedure consists of reacting with mixed acids, fuming with perchloric and filtration to separate the "free" thorium from the "combined". The precipitate is ignited and weighed as thorium dioxide.
Date:
May 12, 1945
Creator:
Ayers, A. S.
Object Type:
Report
System:
The UNT Digital Library
Analysis of Available Data on Control Surfaces Having Plain-Overhang and Frise Balances
From Introduction: "The present paper deals with control surfaces having plain-overhang and Frise balances."
Date:
May 1944
Creator:
Purser, Paul E. & Toll, Thomas A.
Object Type:
Report
System:
The UNT Digital Library