Resource Type
Collection
Technical Report Archive and Image Library
472
National Advisory Committee for Aeronautics Collection
380
Texas Attorney General Opinions
191
Office of Scientific & Technical Information Technical Reports
91
TRAIL Microcard Collection
61
Government Documents A to Z Digitization Project
25
World War Two Collection
24
World War Two Newsmaps
18
Texas State Publications
14
Government Documents General Collection
6
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824 Matching Results
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8 steps in grading soybeans : under revised standards, effective September 1, 1949.
An explanation of the process used by U.S. federal grain inspectors to grade soybeans. Factors include odor, weevil or garlic infestation, moisture, weight per bushel, foreign material, mixed colors, splits, and damage.
Date:
June 1949
Creator:
United States. Extension Service.
Object Type:
Book
System:
The UNT Digital Library
75-mm howitzer materiel.
This is a World War II-era technical manual for the 75mm Howitzer. It contains information on use, maintenance, assembly, and other aspects of this weapon.
Date:
June 21, 1941
Creator:
United States. Army. Ordnance Department.
Object Type:
Book
System:
The UNT Digital Library
100 Areas: (For Technical Progress Letter No. 101), June 4--10
None
Date:
June 14, 1946
Creator:
Jordan, W. E.
Object Type:
Report
System:
The UNT Digital Library
100 Areas: (For Technical Progress Letter No. 102), June 11--June 17
Operation of the D and F Piles is reported. Other items reported are: general; water, corrosion and engineering (graphite expansion).
Date:
June 21, 1946
Creator:
Jordan, W. E.
Object Type:
Report
System:
The UNT Digital Library
100 Areas technical activities report: Engineering, June 1947
There were no cases of unusual blistering of slugs being followed under Production Tests. Two normal production tubes were borescoped following trouble with discharge. In Tube 3188-D a distorted slug became stuck in the region of sharp curvature near the inner end of the rear gun barrel; this is the first time this phenomenon has occurred. Examination of irradiated slugs of rolled metal after normal exposure indicates that rolled material has no particular advantages over extruded material from the standpoint of blistering. However, no extensively blistered pieces were found in either the rolled metal are being held for more extended exposure. Inspection of a large number of Van Stone flanges in the D and F Piles has confirmed that the inlet flanges are in generally good condition but that the rear Van Stone flanges of tubes in the 0.140-inch orifice sone of both piles were badly corroded and generally contained deep pits that extended about half-way through the flange. The Van Stone test units are to be installed unshielded in the risor room at the rear of the D Pile, since the shielding required in the X Sample Room exceeded the allowable floor loading. Recent experimental observations indicate that solid …
Date:
June 25, 1947
Creator:
Woods, W. K.
Object Type:
Report
System:
The UNT Digital Library
100 Areas technical activities report: Engineering, May 1947
This monthly report details Engineering Department technical activities for the month of May 1947.
Date:
June 10, 1947
Creator:
Woods, W. K.
Object Type:
Report
System:
The UNT Digital Library
100-B Unit purge June 14, 1945
None
Date:
June 1, 1945
Creator:
Dahlen, P. A.
Object Type:
Report
System:
The UNT Digital Library
100-D unit purge
None
Date:
June 4, 1945
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
100-D unit purge
None
Date:
June 20, 1945
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
100-F unit purge
None
Date:
June 16, 1945
Creator:
Dahlen, P. A.
Object Type:
Report
System:
The UNT Digital Library
100-Ton Test at Trinity: Report on Earth Velocity Measurements
Apparatus, field layout, miscellaneous testing, and the method of analysis of a 100-ton test at Trinity.
Date:
June 13, 1945
Creator:
Coon, J. H.; Houghton, H. M. & Nobles, Ralph
Object Type:
Report
System:
The UNT Digital Library
100-Ton Test : Measurement of the Velocity of Sound
Abstract: The velocity of sound at the time of 100-ton shot at Trinity was measured to be 1116.1 ft/sec. Values of blast pressure computed from the excess velocity are given, but are not considered as reliable.
Date:
June 15, 1945
Creator:
Barschall, H. H. & Martin, G.
Object Type:
Report
System:
The UNT Digital Library
Adaptor for Measuring Principal Strains With Tuckerman Strain Gage
Report discussing an adapter which uses three Tuckerman optical strain gages to measure the displacement of the three vortices of an equilateral triangle along lines 120 degrees apart. These displacements are substituted in well-known equations in order to compute the magnitude and direction of the principal strains. Tests of the adaptor indicate that principal strains over a gage length of 1.42 inch may be measured with a systematic error not exceeding 4 percent and a mean observational error of the order of + or minus 0.000006. The maximum observed error in strain was of the order of 0.00006. The directions of principal strains for unidirectional stress were measured with the adaptor with an average error of the order of 1 degree.
Date:
June 1943
Creator:
McPherson, A. E.
Object Type:
Report
System:
The UNT Digital Library
An Additional Investigation of the High-Speed Lateral-Control Characteristics of Spoilers
Report presenting an investigation of the characteristics of partial-span spoilers located at 0.75 of the chord on an NACA 66-series tapered wing, especially at high speeds. The effect of small spoiler projections was found to increase with an increase in speed until the critical Mach number was exceeded.
Date:
June 1945
Creator:
Laitone, Edmund V. & Summers, James L.
Object Type:
Report
System:
The UNT Digital Library
Aerodynamic Characteristics of a Number of Modified NACA Four-Digit-Series Airfoil Sections
Report presenting theoretical pressure distributions and experimental aerodynamic characteristics at low speeds for a group of NACA four-digit series airfoil sections. Results regarding lift, drag, and pitching moment are provided.
Date:
June 1948
Creator:
Loftin, Laurence K., Jr. & Cohen, Kenneth S.
Object Type:
Report
System:
The UNT Digital Library
The aerodynamic characteristics throughout the subsonic speed range of a thin, sharp-edged horizontal tail of aspect ratio 4 equipped with a constant-chord elevator
From Introduction: "Recent investigations have indicated several wing plan forms, wing sections, and wing-body-tail combinations suitable for flight at supersonic speeds. One such lifting surface, a thin, sharp-edged without sweep of aspect ratio 4 and taper ratio 0.5, has been the subject of an investigation in the Ames 12-foot pressure wind tunnel. The aim of the investigation was to determine the aerodynamic characteristics of such a wing plan form throughout the range of subsonic Mach numbers up to 0.94."
Date:
June 30, 1949
Creator:
Bandettini, Angelo & Reed, Verlin D.
Object Type:
Report
System:
The UNT Digital Library
Aerodynamic Properties of Cruciform-Wing and Body Combinations at Subsonic, Transonic, and Supersonic Speeds
From Introduction: "Although the aerodynamic characteristics of the components of such configurations may be well known, the mutual interference resulting from combining the wings, as well as the wings and body, may be so great that is desirable to study the aerodynamic properties of the complete configurations. Two methods of handling this problem are presented in this report. The first method is essentially an extension of the theory for slender wing-body combinations of reference 1 to determine the load distribution, forces, and moments exerted on slender cruciform-wing and body combinations inclined simultaneously at small angles in pitch and yaw. "
Date:
June 1949
Creator:
Spreiter, John R.
Object Type:
Report
System:
The UNT Digital Library
Aerodynamic Tests of an A-M-65-AZON 1000-Pound Radio-Controlled Bomb in the LMAL 16-Foot High-Speed Tunnel
Report presenting tests made in the LMAL 16-foot high-speed tunnel to determine the aerodynamic characteristics of a 1000-pound AN-M-65-AZON radio-controlled bomb at a Mach number range of 0.2 to 0.6. Over the Mach number range, the hinge-moment coefficients, yawing-moment coefficients, and lateral-force coefficients exhibited no important changes with increasing speed.
Date:
June 1944
Creator:
Pearson, E. O., Jr.
Object Type:
Report
System:
The UNT Digital Library
Aerodynamics of the carburetor air scoop and the engine cowling of a single-engine torpedo-bomber-type airplane
From Introduction: "An investigation of the power-plant installation of a single-engine torpedo-bomber-type airplane has been conducted in the NACA Cleveland altitude wind tunnel at the request of the Bureau of Aeronautics, Navy Department. A similar investigation was previously conducted on a three-tenths scale mock-up of the forward portion of the fuselage of this airplane in the Langley 20-foot tunnel. (See reference 1)."
Date:
June 1946
Creator:
Palter, Herman
Object Type:
Report
System:
The UNT Digital Library
Air Transport by Gliders: Some Technical Observations
This short analysis may be useful in determining the real tactical possibilities of "glider trains" and in adopting the course to be followed in possible studies of these questions. In this analysis most prominent are: (a) the power required for the train in level flight; (b) its speed; (c) climb; and (d) the type of airplane best suited for towing as well as design requirements for transport gliders.
Date:
June 1941
Creator:
Stepniewski, Wieslaw
Object Type:
Report
System:
The UNT Digital Library
Aircraft hardware and materials.
Describes the types of "materials and hardware used in aircraft construction and repair."
Date:
June 11, 1942
Creator:
United States. War Department.
Object Type:
Book
System:
The UNT Digital Library
Airfoil in Sinusoidal Motion in a Pulsating Stream
"In the present paper, under the same lineaeizing assumptions as are made in the derivation in reference 1 but with the explicit consideration and simplification of the form of the wake extending from the rear of the airfoil, the methods of Theodorsen (reference 2) have been extended to obtain the forces on the airfoil not only at a fixed angle of attack but also in arbitrary motion" (p. 1).
Date:
June 1947
Creator:
Greenberg, J. Mayo
Object Type:
Report
System:
The UNT Digital Library
Airfoil Measurements in the DVL High-Speed Wind Tunnel (2.7-Meter Diameter)
Report is a brief summary of investigations on symmetrical and cambered airfoils in the DVL high-speed tunnel. Some information on the effects of low aspect ratio are also included.
Date:
June 1949
Creator:
Göthert, B.
Object Type:
Report
System:
The UNT Digital Library
Alloys of Uranium and Silicon. [Part] 2. The Epsilon Phase
None
Date:
June 1945
Creator:
Bitsianes, Gust
Object Type:
Report
System:
The UNT Digital Library