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The Dewoitine D.30 Commercial Airplane (French): A High-Wing Cantilever Monoplane

Description: Circular describing the Dewoitine D.30, which is a commercial high-wing cantilever monoplane. Details of the wing, fuselage, tail surfaces, landing gear, flight controls, electrical equipment, sending-receiving wireless installation, power plant, characteristics, performance, drawings, and photographs are provided.
Date: February 1931
Partner: UNT Libraries Government Documents Department
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A Concise Theoretical Method for Profile-Drag Calculation; Advance Report

Description: In this report a method is presented for the calculation of the profile drag of airfoil sections. The method requlres only a knowledge of the theoretical velocity distribution and can be applied readily once this dlstribution is ascertained. Comparison of calculated and experimental drag characteristics for several airfoils shows a satisfactory agreement. Sample calculatlons are included.
Date: February 1944
Creator: Nitzberg, Gerald E.
Partner: UNT Libraries Government Documents Department
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An Investigation of a Thermal Ice-Prevention System for a C-46 Cargo Airplane 3: Description of Thermal Ice-Prevention Equipment for Wings, Empennage, and Windshield

Description: Report presenting an investigation of a thermal ice-prevention system for a Curtiss-Wright C-46 airplane, including the equipment for the wings, empennage, and windshield. The report is the third in a series and focuses on the revisions to the components for thermal ice prevention, the temperature- and pressure-measurement equipment installed in the airplane to determine the performance of the system, and the results of static-load structural tests of a specimen of the wing outer-panel leading … more
Date: February 1945
Creator: Jones, Alun R. & Spies, Ray J., Jr.
Partner: UNT Libraries Government Documents Department
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An Investigation of a Thermal Ice-Prevention System for a C-46 Cargo Airplane 4: Results of Flight Tests in Dry-Air and Natural-Icing Conditions

Description: Report presenting an investigation of a thermal ice-prevention system for a C-46 cargo airplane, which involved flight tests in dry-air and natural-icing conditions at two different laboratories. The purpose of the investigation was to determine the effectiveness of the C-46 airplane ice-prevention system and to continue the develop of thermal ice-prevention equipment. Results regarding the wing outer panel, wing tips, wing center panel, horizontal stabilizers, vertical fin, windshields, ice-re… more
Date: February 1945
Creator: Selna, James; Neel, Carr B., Jr. & Zeiller, E. Lewis
Partner: UNT Libraries Government Documents Department
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The Use of Geared Spring Tabs for Elevator Control

Description: Report discussing the use of two types of geared spring tabs for elevator control: ordinary (or ungeared) spring tabs and geared spring tabs. Their use in airplanes of various sizes and in comparison to conventional control systems is described.
Date: February 1945
Creator: Phillips, William H.
Partner: UNT Libraries Government Documents Department
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The Avia 51 Commercial Airplane (Czechoslovakian): A Cantilever High-Wing Monoplane

Description: Circular describing the Avia 51 commercial airplane, which is a Czechoslovakian cantilever high-wing monoplane with a fairly orthodox design. Details of the performance, construction, wing, ailerons, fuselage, landing gear, engines, characteristics, drawings, and photographs are provided.
Date: February 1934
Partner: UNT Libraries Government Documents Department
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Further Measurements of Normal Accelerations on Racing Airplanes

Description: This report details the acceleration data collected from racing airplanes during actual races. The data was collected in order to make recommendations regarding the structural safety of racing airplanes and the methods of operating racing airplanes that reduces the probability of subjecting them to extreme air loads. The records do not lead to any conclusions regarding maximum air loads.
Date: February 1936
Creator: Kirschbaum, H. W. & Scudder, N. F.
Partner: UNT Libraries Government Documents Department
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The Comper C(La)7 "Swift" Airplane (English): A High-Wing Single-Seat Monoplane

Description: Circular describing the Comper C(La)7 Swift airplane, which is a high-wing single-seat monoplane with performance equal to that of a modern two-seat light airplane. Details of the view, aerodynamic design, wing, landing gear, cockpit, fuel tanks, engine, characteristics, drawings, and photographs are provided.
Date: February 1930
Partner: UNT Libraries Government Documents Department
open access

An Investigation of a Thermal Ice-Prevention System for a C-46 Cargo Airplane 2: The Design, Construction, and Preliminary Tests of the Exhaust-Air Heat Exchanger

Description: Report presenting an investigation of an exhaust-air heat exchanger, which has been designed, constructed, and flight-tested for a C-46 cargo airplane. The primary purpose of the investigation was to provide the C-46 airplane with a satisfactory source of heated air and to continue the development of the heat exchanger as a part of thermal ice-prevention equipment. Results indicated that the required thermal output and desired air-temperature rise have been achieved and that the exchanger is su… more
Date: February 1945
Creator: Jackson, Richard
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
Partner: UNT Libraries Government Documents Department
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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
Partner: UNT Libraries Government Documents Department
open access

Pressure Distribution on Fuselage of Airplane Model

Description: 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
Partner: UNT Libraries Government Documents Department
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Graetzin Special Carburetor

Description: Corresponding to practical requirements, this carburetor (especially the smaller sizes) may be regarded as the smallest form of a float carburetor and is adapted for use with all small engines, including auxiliary bicycle and similar engines.
Date: February 1923
Partner: UNT Libraries Government Documents Department
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Aeronautic Instruments

Description: "The development of aeronautic instruments. Vibrations, rapid changes of the conditions of flight and of atmospheric conditions, influence of the air stream all call for particular design and construction of the individual instruments. This is shown by certain examples of individual instruments and of various classes of instruments for measuring pressure, change of altitude, temperature, velocity, inclination and turning or combinations of these" (p. 1).
Date: February 1924
Creator: Everling, E. & Koppe, H.
Partner: UNT Libraries Government Documents Department
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"AM" Flexible Metal Joint

Description: A flexible metal joint used for connecting fuel lines is investigated and methods for assembly are included.
Date: February 1923
Partner: UNT Libraries Government Documents Department
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Relation Between the Stability Characteristics and the Controllability of German Airplanes

Description: This survey is intended to give a general approximate idea of the stability and controllability of German airplanes. Both flight characteristics, including the behavior of the airplane under the action of deflected controls and external disturbances, and flight performance, which refers to climbing, speed, take-off, and landing qualities.
Date: February 1930
Creator: Hübner, Walter
Partner: UNT Libraries Government Documents Department
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