Collection
Technical Report Archive and Image Library
120
National Advisory Committee for Aeronautics Collection
97
USGS Topographic Map Collection
60
USDA Farmers' Bulletins
17
Government Documents A to Z Digitization Project
8
Texas State Publications
6
TRAIL Microcard Collection
1
Texas House of Representatives Journals
1
Texas Senate Journals
1
United States Experiment Station Record
1
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Serial/Series Title
NACA Technical Memorandums
50
NACA Technical Reports
27
NACA Technical Notes
19
Farmers' bulletin (United States. Dept. of Agriculture)
17
United States Bureau of Mines Reports
16
30 Minute Series
6
National Bureau of Standards Reports
6
15 Minute Series (Topographic)
5
Bulletin (Texas. Department of Agriculture)
3
National Bureau of Standards circular
3
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207 Matching Results
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Atomization of Liquid Fuels Part 3: Critical Discussion of Experimental Reesults, Mixing the Atomized Fuel with Air
This report provides a critical discussion of the results of the experiments conducted in the previous NACA-TM's 329 and 330. The main object of this investigation was to determine the size of the drops in mechanical atomization.
Date:
September 1925
Creator:
Kuehn, R.
Object Type:
Report
System:
The UNT Digital Library
Aerodynamic Characteristics of Aircraft With Reference to Their Use
Report discussing economic and design characteristics are examined in the design of airplanes and airships.
Date:
1925
Creator:
Panetti, M.
Object Type:
Report
System:
The UNT Digital Library
Pressure Distribution on Fuselage of Airplane Model
Memorandum describing the method of determining the pressure distribution on the fuselage, with special attention to how it is affected by the presence of the wings.
Date:
February 1925
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Cow-testing associations, and stories the records tell.
Describes the history and functions of farm cow-testing associations; provides steps for starting a new cow-testing association.
Date:
June 1925
Creator:
McDowell, J. C. (John Chambers), 1867-1943
Object Type:
Book
System:
The UNT Digital Library
Cotton ginning.
Describes the the mechanical process of cotton ginning, using a saw gin.
Date:
October 1925
Creator:
Meloy, G. S. (Guy Stanley), 1874-
Object Type:
Book
System:
The UNT Digital Library
Tomatoes for canning and manufacturing.
Describes the steps necessary for successfully producing tomatoes for canning.
Date:
November 1925
Creator:
Beattie, James H. (James Herbert), b. 1882
Object Type:
Book
System:
The UNT Digital Library
Fitting, showing, and judging hogs.
Provides suggestions for selecting and preparing swine for livestock shows and fairs. Describes judging criteria.
Date:
July 1925
Creator:
Russell, E. Z. (Ellsworth Zouave), 1866-
Object Type:
Book
System:
The UNT Digital Library
Compressibilities of gases
Reproduction of thirteen graphs for computing compressibilities of various gases and for computing the volumes delivered from cylinders containing various gases.
Date:
November 21, 1925
Creator:
Pickering, Samuel Fisher
Object Type:
Report
System:
The UNT Digital Library
Concrete Airship Sheds at Orly, France Part 2: Supporting Structure and Method of Moving, Mechanism for Moving the Centering, Apparatus for Handling the Materials, Remarks on Construction Details
This report deals mainly with the methods of construction employed when after the plan had been approved. The foundation, side walls, doors and roof are all discussed and the economic savings resulting from this method of construction.
Date:
October 1925
Creator:
Freyssinet
Object Type:
Report
System:
The UNT Digital Library
Concrete Airship Sheds at Orly, France Part 1: General Aspect of the Problem, Basic Principles of the Final Project, Principal Structural Elements
This report details the contest to design and build concrete airship hangers. The difficulty lies in the magnitude of the absolute dimensions. An airship shed must withstand two principal types of stresses: those resulting from its own weight and those due to the wind. This report discusses both problems in detail.
Date:
October 1925
Creator:
Freyssinet
Object Type:
Report
System:
The UNT Digital Library
Report on Commercial Air Transportation Activities in England, France, Germany and Holland
The following pages present a review of the air transportation activities of England, France, Germany and Holland, based on an inspection trip during the summer of 1924. The different components described include operating companies, nature of transportation services, air traffic, flying equipment, government relations, and general remarks.
Date:
June 1925
Creator:
Van Zandt, J. Parker
Object Type:
Report
System:
The UNT Digital Library
High Velocity Wind Tunnels: Their Application to Ballistics, Aerodynamics, and Aeronautics
"The object of this article is to set forth the particular properties of swiftly-moving air, how these affect the installation of a wind tunnel, the experimental results already obtained, the possible applications of such a tunnel, and what can be easily accomplished at the present time" (p. 1).
Date:
June 1925
Creator:
Huguenard, E.
Object Type:
Report
System:
The UNT Digital Library
Recent Progress in the Theoretical Deduction of Airplane Wings
The designing of an airplane requires an accurate knowledge of the aerodynamic properties of its wings, as expressed in the polar diagram. It is important to continue the theoretical researches on the aerodynamic phenomena of wings, in order to determine by calculation, their fundamental characteristics and to increase and formulate our knowledge in this field.
Date:
November 1925
Creator:
Panetti, M.
Object Type:
Report
System:
The UNT Digital Library
Schütte-Lanz Airship Projects After the War
The stressing of an airship depends on three nonuniformly distributed forces: air forces; the distribution of acceleration forces; and how the air pressure is distributed on the hull. This report examines the stresses and comes to conclusions on the size of airships.
Date:
October 1925
Creator:
Weiss, Georg
Object Type:
Report
System:
The UNT Digital Library
Suggestions for Courses of Instruction in Aviation
Suggestions are presented for the establishment of lecture courses on aviation. An outline of some courses that have previously been given is provided.
Date:
March 1925
Creator:
Poeschel
Object Type:
Report
System:
The UNT Digital Library
Experiment Station Record, Volume 51, July-December, 1924
Volume provides abstracts of agricultural experiments conducted during the year. Also includes statistics, convention reports, bulletins, bibliographies and listings for Spanish edition publications from the Porto Rico Station. Name and subject indexes start on page 901.
Date:
1925
Creator:
United States. Office of Experiment Stations.
Object Type:
Book
System:
The UNT Digital Library
Plastic Magnesia
Report issued by the Bureau of Mines over the production methods and uses of plastic magnesia. Methods, properties, and uses of plastic magnesia are discussed. This report includes tables, illustrations, and photographs.
Date:
1925
Creator:
Ralston, Oliver C.; Pike, Robert D. & Duschak, Lionel H.
Object Type:
Report
System:
The UNT Digital Library
Pressure Distribution on Joukowski Wings
The hydrodynamics and mathematical models as applied to the potential flow about a Joukowski wing are presented.
Date:
October 1925
Creator:
Blumenthal, Otto & Trefftz, E.
Object Type:
Report
System:
The UNT Digital Library
Elements of the Wing Section Theory and of the Wing Theory
Results are presented of the theory of wings and of wing sections which are of immediate practical value. They are proven and demonstrated by the use of the simple conceptions of kinetic energy and momentum only.
Date:
1925
Creator:
Munk, Max M.
Object Type:
Report
System:
The UNT Digital Library
Air Flow Investigation for Location of Angle of Attack Head on a JN4h Airplane
The technical staff of the NACA at Langley Field, has made a series of free flight tests with a JN4h airplane in order to find the best place for an instrument for measuring the angle of attack. A "neutral zone" was found where the air remains either at rest relative to the undisturbed air beyond the influence of the airplane, or is set in motion parallel to the motion of the airplane. This zone is about midway between the two wings and slightly in front of, or at the vertical plane through the leading edges of the wings but the exact position as well as the outlines of the zone varies considerably as the conditions of flight change.
Date:
August 1925
Creator:
Freeman, R. G.
Object Type:
Report
System:
The UNT Digital Library
Determination of the Lift and Drag Characteristics of an Airplane in Flight
Flight tests to determine lift and drag characteristics are discussed. A review is given of the fundamental principles on which the tests are based and on the forces acting on an airplane in the various conditions of steady flight. Glide with and without propeller thrust and the relation between angle of attack and the indicated airspeed for different conditions of steady flight are discussed. The glide test procedure and the problem of the propeller are discussed.
Date:
August 1925
Creator:
Green, Maurice W.
Object Type:
Report
System:
The UNT Digital Library
Pressure Distribution on the Nose of an Airship in Circling Flight
In recent tests on the pressures occurring on the envelope and control surfaces of the naval airship C-7, it was noted that the pressures on the nose of the airship, while flying in level circling flight, were symmetrically distributed. Such a condition can only occur when the nose of the airship is pointed directly into the wind, and to accomplish this in circling flight, the axis of the airship must then be parallel to the direction of the motion of the nose. The question was raised as to whether the same conditions occur generally on all airships in circling flight.
Date:
August 1925
Creator:
Fairbanks, Karl J.
Object Type:
Report
System:
The UNT Digital Library
Propeller Scale Effect and Body Interference
"This note shows that the main part of the discrepancy between full flight propeller performance and the performance of models in a wind tunnel is due to a scale effect, and that a minor part is caused by body interference. Analyses are made of propeller performances on several standard airplanes, and the actual brake horsepower compared with the power as calculated from model test data. The calculated power is based on that absorbed by a wind tunnel propeller model which is geometrically similar to the full scale propeller and is operating under the same ratio of V/nD" (p. 1).
Date:
September 1925
Creator:
Weick, Fred E.
Object Type:
Report
System:
The UNT Digital Library
The Calculation of Wing Float Displacement in Single-Float Seaplanes
Note presenting an exploration of the calculation of wing float displacement in single-float seaplanes. An explanation of a formula that can be used is provided.
Date:
March 1925
Creator:
Warner, Edward P.
Object Type:
Report
System:
The UNT Digital Library