Collection
Office of Scientific & Technical Information Technical Reports
230
Congressional Research Service Reports
127
Government Accountability Office Reports
44
Texas Attorney General Opinions
34
Technical Report Archive and Image Library
33
Texas Patents
29
National Advisory Committee for Aeronautics Collection
19
Texas Register
11
TRAIL Microcard Collection
9
Texas State Publications
8
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525 Matching Results
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An Investigation of a Full-Scale Model of the Republic XF-91 Airplane in the Ames 40- By 80-Foot Wind Tunnel: Pressure Data
Wind-tunnel tests of a full-scale model of the Republic XF-91 airplane were conducted to determine the distribution of pressure over the external wing fuel tank installation and over the vee tail and ventral fin. The data were obtained for a range of angles of attack and sideslip and elerudder deflection angles; the presentation is in tabular form.
Date:
March 25, 1949
Creator:
Hunton, Lynn W. & Dew, Joseph K.
Object Type:
Report
System:
The UNT Digital Library
Performance of supersonic axial-flow compressors based on one-dimensional analysis
Report presenting an analytical study of four combinations of subsonic and supersonic flow in the rotor- and stator-blade passages of axial-flow compressors.
Date:
March 25, 1949
Creator:
Wright, Linwood C. & Klapproth, John F.
Object Type:
Report
System:
The UNT Digital Library
Development of a new flutter testing technique using a towed dynamic airplane model equipped with an automatic stabilizing system: Experimental and calculated dynamic stability characteristics for speeds up to 200 mph
Report presenting testing of a towed airplane model in the 19-foot pressure tunnel in conjunction with the development of a flutter testing technique. The model was equipped with an autopilot to keep the model flying straight and level in the tunnel while restrained only in drag. Results regarding period and cycles to damp to half amplitude, time histories, and motions of the flexible wing model are provided.
Date:
March 25, 1955
Creator:
Schneider, William C.
Object Type:
Report
System:
The UNT Digital Library
Free-flight investigation of longitudinal stability and control of a rocket-propelled missile model having cruciform, triangular, inline wings and tails
Report presenting a rocket-propelled missile model with cruciform, triangular, inline wings and tails, which has been tested through a range of Mach numbers at small wing-deflection angles. Results regarding the stability and damping, control effectiveness, and hinge moments are provided.
Date:
March 25, 1952
Creator:
Hall, James R.
Object Type:
Report
System:
The UNT Digital Library
Investigation of Spoilers at a Mach Number of 1.93 to Determine the Effects of Height and Chordwise Location on the Section Aerodynamic Characteristics of a Two-Dimensional Wing
Report presenting an investigation of spoilers at a Mach number of 1.93 to determine the effects of height and chordwise location on the section pressure distributions and section aerodynamic characteristics of a two-dimensional, 6-percent-thick, symmetrical wing. Spoilers of 3-, 5-, and 7-percent-chord height were tested at three chordwise locations. Results regarding pressure distributions, aerodynamic characteristics, and shock boundary-layer interactions are provided.
Date:
March 25, 1953
Creator:
Mueller, James N.
Object Type:
Report
System:
The UNT Digital Library
Transonic Wind-Tunnel Investigation of the Effects of Body Indentation on the Aerodynamics of a Semielliptical Sweptback Wing-Root Inlet Configuration
Report presenting an investigation in the transonic blowdown tunnel between Mach numbers of 0.65 and 1.4 to determine whether the principles of the transonic area rule could be used to improve the transonic drag-rise characteristics of a semielliptical shaped sweptback air inlet installed in the root of a sweptback wing-body combination. Results regarding the effect of the inlet and the interaction of Mach number and drag coefficient are provided.
Date:
March 25, 1954
Creator:
Keith, Arvid L., Jr.
Object Type:
Report
System:
The UNT Digital Library
The Effect of Nacelle Location on the Zero-Lift Drags of 45 Degree Sweptback Wing-Body Configurations Having Boattail and Cylindrical Afterbodies as Determined by Flight Tests at Transonic Speeds
Report presenting the effects of nacelle location on the zero-lift drag of 45 degree sweptback wing-body combinations with boattail and cylindrical afterbodies at a range of Mach and Reynolds numbers. The nacelles were located at three different areas and the afterbody shape was also altered by replacing the boattail afterbody with a cylinder. Results regarding faired curves of the variations of total drag, base drag, and fin drag coefficients, and applicability of the transonic area rule are provided.
Date:
March 25, 1954
Creator:
Hoffman, Sherwood & Wolff, Austin L.
Object Type:
Report
System:
The UNT Digital Library
Effects of base bleed on the base pressure of blunt-trailing-edge airfoils at supersonic speeds
Report presenting the effect on base pressure of bleeding air to the semidead-air region at the trailing edge of two-dimensional blunt-trailing-edge airfoils at two Mach numbers. Variation of base pressure with base-bleed rate was determined for two airfoils profiles with both laminar and turbulent boundary layers approaching the trailing edge. Results regarding the effects of jet geometry, effects of jet area, effect of base bleed on the flow in the wake, effect of angle of attack, effect of Reynolds number, correlation of the results with mass-flow rate of the bleed air, and effect of base bleed on the drag of blunt-trailing-edge airfoils are provided.
Date:
March 25, 1954
Creator:
Wimbrow, William R.
Object Type:
Report
System:
The UNT Digital Library
Analysis of V-G records from ten types of Navy airplanes in squadron operations during the period 1949 to 1953
From Introduction: "The purpose of this paper is to present an analysis of the data for the remaining airplanes where the data were sufficient to warrant analysis. The data analyzed represent totals of 351 to 5660 hours of operations with ten types of Navy airplanes and were recorded during the period 1949 to 1953."
Date:
March 25, 1955
Creator:
Mayer, John P. & Harris, Agnes E.
Object Type:
Report
System:
The UNT Digital Library
Preliminary Results of an Investigation at Transonic Speeds to Determine the Effects of a Heated Propulsive Jet on the Drag Characteristics of a Related Series of Afterbodies
Preliminary results are presented from an investigation to determine the influence of afterbody geometry on the effects of a sonic propulsive jet at transonic speeds. The results presented are base pressure coefficient and afterbody pressure-drag coefficient as a function of jet pressure ratio for different values of Mach number and jet temperature. Geometric parameters investigated include boattail angle, jet-to-model diameter ratio, and jet-to-base diameter ratio.
Date:
March 25, 1955
Creator:
Henry, Beverly Z., Jr. & Cahn, Maurice S.
Object Type:
Report
System:
The UNT Digital Library
Flight-determined pressure distributions over a section of the 35 degree swept wing of the Douglas D-558-II research airplane at Mach numbers up to 2.0
From Summary: "Measurements of pressure distributions have been made over a wing midsemispan station on the 35 degree sweptback wing of the Douglas D-558-II research airplane at Mach numbers from 1.17 to 2.0. The results of the investigation indicate that, as the angle of attack increased at the higher Mach numbers, the pressure coefficient for a vacuum limited the extent to which the upper-surface pressures could expand. Consequently most of the increase in section normal-force coefficient at high angles of attack can be attributed to the increase in pressure over the lower surface."
Date:
March 25, 1955
Creator:
Jordan, Gareth H. & Keener, Earl R.
Object Type:
Report
System:
The UNT Digital Library
Effects of free-flight rocket-model booster-adapter configurations on the aerodynamic characteristics in pitch and sideslip of a swept-wing fighter airplane model at a Mach number of 2.01
Report presenting results of a wind-tunnel investigation to determine the effects of various free-flight rocket-model booster-adapter configurations on the aerodynamic characteristics in pitch and sideslip of a swept-wing, fighter airplane model for a Mach number of 2.01. Normal-force, lateral-force, pitching-moment, and yawing-moment coefficients of the airplane model were measured, and schileren photographs of the various configurations were obtained.
Date:
March 25, 1955
Creator:
Robinson, Ross B.
Object Type:
Report
System:
The UNT Digital Library
Wind-Tunnel Data on the Longitudinal and Lateral-Directional Rotary Derivatives of a Straight-Wing, Research Airplane Configuration at Mach Numbers From 2.5 to 3.5
Memorandum presenting the results of wind-tunnel oscillation tests to measure the rotary derivatives of a research airplane configuration at supersonic speeds. Measurements were made of the damping in yaw, pitch, and roll, the static longitudinal and directional stability derivatives, the effective-dihedral derivative, the rolling moment due to yawing, and the yawing moment due to rolling. The configuration was found to be statistically stable throughout the Mach number range, although its stability was becoming marginal at high angles of attack at Mach number 3.5.
Date:
March 25, 1958
Creator:
Beam, Benjamin H. & Endicott, Kenneth C.
Object Type:
Report
System:
The UNT Digital Library
Calculated and measured pressure distributions over the midspan section of the NACA 4412 airfoil
Pressures were simultaneously measured in the variable-density tunnel at 54 orifices distributed over the midspan section of 5 by 30 inch rectangular model of the NACA 4412 airfoil at 17 angles of attack ranging from -20 degrees to 30 degrees at a Reynolds number of approximately 3,000,000. Accurate data were thus obtained for studying the deviations of the results of potential-flow theory from measured results. The results of the analysis and a discussion of the experimental technique are presented.
Date:
March 25, 1936
Creator:
Pinkerton, Robert M.
Object Type:
Report
System:
The UNT Digital Library
Working Charts for the Selection of Aluminum Alloy Propellers of a Standard Form to Operate With Various Aircraft Engines and Bodies
"Working charts are given for the convenient selection of aluminum alloy propellers of a standard form, to operate in connection with six different engine-fuselage combinations. The charts have been prepared from full-scale test data obtained in the 20-foot propeller research tunnel of the National Advisory Committee for Aeronautics. An example is also given showing the use of the charts" (p. 3).
Date:
March 25, 1929
Creator:
Weick, Fred E.
Object Type:
Report
System:
The UNT Digital Library
Texas Register, Volume 13, Number 24, Pages 1407-1472, March 25, 1988
A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date:
March 25, 1988
Creator:
Texas. Secretary of State.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Texas Register, Volume 11, Number 23, Pages 1485-1530, March 25, 1986
A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date:
March 25, 1986
Creator:
Texas. Secretary of State.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Texas Register, Volume 5, Number 23, Pages 1105-1170, March 25, 1980
A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date:
March 25, 1980
Creator:
Texas. Secretary of State.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Texas Register, Volume 8, Number 21, Pages 969-1014, March 25, 1983
A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date:
March 25, 1983
Creator:
Texas. Secretary of State.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
War Powers Resolution: Presidential Compliance
This report gives a summary of the usage of the War Powers Resolution (WPR) and various issues related to proposals to modify or repeal the resolution. The report summarizes most recent developments and background, and gives an overview of United Nations actions, and WPR activities in former Yugoslavia/Bosnia, Kosovo, Iraq (post-1991), Haiti, and Somalia. It also includes commentary on the instances formally reported under the WPR, consultation with Congress, and the current issues which Congress is considering.
Date:
March 25, 2011
Creator:
Grimmett, Richard F.
Object Type:
Report
System:
The UNT Digital Library
The National Nanotechnology Initiative: Overview, Reauthorization, and Appropriations Issues
This report provides an overview of nanotechnology, the National Nanotechnology Initiative, possible reauthorization of the 21st Century Nanotechnology Research and Development Act of 2003 (P.L. 108-153), and appropriations issues.
Date:
March 25, 2011
Creator:
Sargent, John F., Jr.
Object Type:
Report
System:
The UNT Digital Library
Foreign Holdings of Federal Debt
This report presents current data on estimated ownership of U.S. Treasury securities and major holders of federal debt by country. Federal debt represents the accumulated balance of borrowing by the federal government.
Date:
March 25, 2011
Creator:
Murray, Justin & Labonte, Marc
Object Type:
Report
System:
The UNT Digital Library
U.S. Fossil Fuel Resources: Terminology, Reporting, and Summary
This report describes the characteristics of fossil fuels that make it necessary to use precise terminology, summarizes the major terms and their meanings, and provides a brief summary of the United States’ endowment of fossil fuels and the relationship between the U.S. fossil fuel energy endowment and those of other nations.
Date:
March 25, 2011
Creator:
Whitney, Gene; Behrens, Carl E. & Glover, Carol
Object Type:
Report
System:
The UNT Digital Library
Senegal: Background and U.S. Relations
This report covers the background, recent politics, governant, and economy of Senegal. It also looks at security and human rights issues and Senegal's ties with France and the Middle East. It ends with a look at U.S. - Senegal relations.
Date:
March 25, 2011
Creator:
Arieff, Alexis
Object Type:
Report
System:
The UNT Digital Library