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The Farman Night Bombers 211 and 212 (French): Four-Engine High-Wing Monoplanes

Description: Circular presenting a description of the Farman night bombers 211 and 212, which are four-engine high-wing monoplanes that are equipped with different engines. Details of the wing structure, fuselage, tail surface and controls, landing gear, power plant, characteristics, performance, drawings, and photographs are provided.
Date: July 1932
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fokker F.XX Commercial Airplane (Dutch): A High-Wing Cantilever Monoplane

Description: Circular describing the Fokker F.XX, which is a three-engine high-wing cantilever monoplane with retractable landing gear and tail wheel. Details of the wing, fuselage, cockpit, cabin, covering and cowling, control surfaces, landing gear, power plant, fuel and oil systems, characteristics, drawings, and photographs are provided.
Date: February 1934
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Polish P Type Single-Seat Fighters: All-Metal Gull-Type Wing Monoplanes

Description: Circular describing the Polish P.I and P.VIII airplanes, which are both all-metal gull-type wing monoplanes that differ in the type of engine used, their wing area, and their landing gears. Details of the components, design, differences, characteristics, load distribution, performance, drawings, and photographs are provided.
Date: March 1931
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Survey of Land-Grant Colleges and Universities, Volume 2

Description: Second volume of the results of a survey undertaken by the U.S. Office of Education to determine their achievements, objectives, and functions. This bulletin provides the data and information collected by the Office during the survey and suggestions about possible improvements or changes. This volume is divided into ten parts: Part I. Arts and sciences; Part II. Commerce and business; Part III. Teacher training; Part IV. Military education; Part V. Professional veterinary medicine; Part VI. S… more
Date: 1930
Creator: United States. Office of Education.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department

["Cynthia Parker" Play]

Description: Photograph of students acting in the play "Cynthia Parker" at North Texas State Teachers' College. One woman appears to have been shot with an arrow, while a native american and a second woman watch.
Date: 1939
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections
open access

Survey of Land-Grant Colleges and Universities, Volume 1

Description: First volume of the results of a survey undertaken by the U.S. Office of Education to determine their achievements, objectives, and functions. This bulletin provides the data and information collected by the Office during the survey and suggestions about possible improvements or changes. This volume is divided into eleven parts: Part I. Historical introduction; Part II. Control and administrative organization; Part III. Business management and finance; Part IV. Work of the registrar; Part V. … more
Date: 1930
Creator: United States. Office of Education.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

Airplane Flight in the Stratosphere

Description: This brief survey of the problems encountered in high-altitude flight deals in particular with the need for high lift coefficient in the wings, large aspect ratios in the wings, and also the problem of hermetically sealing the cabin.
Date: February 1932
Creator: de Caria, Ugo
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Static Longitudinal Stability Of "Ente" Airplanes

Description: The stability conditions of Ente (duck) airplanes are investigated in this report. In developing the formulas, which afford an approximate solution, the unimportant effect of the height of the C.G. and the moment of the residual resistance are neglected. The effect of downwash from the forward horizontal empennage on the wing are also disregarded.
Date: March 1931
Creator: Kiel, Heinrich Georg
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Vortex Theory and Its Significance in Aviation

Description: This report will present ideas closely related to the vortex conception and illustrate them in the simplest possible terms. In addition to these general considerations, this report will attempt to show the application of the vortex theory in connection with the wing theory.
Date: July 1930
Creator: Betz, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Riveting in Metal Airplane Construction Part 1 : Riveting Methods and Equipment in German Metal Airplane Construction

Description: "Although all constructors in Germany use duralumin quite frequently, and prefer cold riveting exclusively for permanent (nondetachable) connections of individual structural components, their methods and equipment are very diversified. The differences are due to a great extent to the diversity of structural types and to the special shapes of the individual subassemblies. The results is that different manufacturers have developed totally different riveting methods, as well as entirely different … more
Date: December 1930
Creator: Pleines, Wilhelm
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Problems Concerning the Stability and Maneuverability of Airplanes

Description: "The stability of an airplane can be easily determined by wind-tunnel tests, especially by simple tests with models mounted wind-vane fashion. However, each stability curve plotted by this method is valid only for a certain setting of the corresponding control surface, i.e., it characterizes the stability of the airplane with the control stick in a given position. The problems thus defined are studied from the point of view of longitudinal and transverse stability. Directional stability is not … more
Date: March 1932
Creator: Biche, Jean
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Transference of Heat From a Hot Plate to an Air Stream

Description: The object of the present study was to define experimentally the field of temperature and velocity in a heated flat plate when exposed to an air stream whose direction is parallel to it, then calculate therefrom the heat transference and the friction past the flat plate, and lastly, compare the test data with the mathematical theory. To ensure comparable results, we were to actually obtain or else approximate: a) two-dimensional flow; b) constant plate temperature in the direction of the stream… more
Date: April 1931
Creator: Elias, Franz
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Clerget 100 Hp Heavy-Oil Engine

Description: A complete technical description of the Clerget heavy-oil engine is presented along with the general characteristics. The general characteristics are: 9 cylinders, bore 120 mm, stroke 130 mm, four-stroke cycle engine, rated power limited to 100 hp at 1800 rpm; weight 228 kg; propeller with direct drive and air cooling. Moving parts, engine block, and lubrication are all presented.
Date: January 1931
Creator: Léglise, Pierre
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Mathematical treatise on the recovery from a flat spin

Description: In this mathematical investigation, made in collaboration with Dr. Wilhelm Schmidt, we interpret the temporary change (due to some disturbance) in the quantities which define the position of the airplane while in a flat spin. We further examine the effect of this change, of the means resorted to to produce the disturbance, and thus reveal the expedients available for recovering from a flat spin.
Date: November 1930
Creator: Fuchs, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Accurate Calculation of Multispar Cantilever and Semicantilever Wings With Parallel Webs Under Direct and Indirect Loading

Description: In the present report the computation is actually carried through for the case of parallel spars of equal resistance in bending without direct loading, including plotting of the influence lines; for other cases the method of calculation is explained. The development of large size airplanes can be speeded up by accurate methods of calculation such as this.
Date: March 1932
Creator: Sänger, Eugen
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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