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Lift Theory of Supporting Surfaces: Second Article

Description: Memorandum presenting a description of the hydrodynamic lift theory of supporting services. This report is mainly about the task of finding suitable wing sections for given lift conditions. Formulas are given for lift magnitude and moment, which make it possible to obtain solutions of great simplicity and clearness.
Date: September 1921
Creator: von Mises, R.
Partner: UNT Libraries Government Documents Department
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Preliminary Calculation of Cylinder Dimensions for Aircraft Engines

Description: It is extremely important in building aircraft engines to determine the requisite cylinder dimensions as accurately as possible, in order that the weight required for a given power shall not be excessive. This report presents a calculation method that depends on the air requirement of the fuel.
Date: September 1921
Creator: Schwager, Otto
Partner: UNT Libraries Government Documents Department
open access

Glossary of Terms Used in Flying Boat Hull Construction

Description: Memorandum presenting a glossary of terms used to describe flying boat hulls and the elements used in construction.
Date: September 1921
Creator: Nicolson, David
Partner: UNT Libraries Government Documents Department
open access

Competition for Safety Fuel Tanks

Description: Report describing a competition for safety fuel tanks, including the prizes, requirements that must be fulfilled, some other characteristics, tests, and regulations.
Date: September 1921
Partner: UNT Libraries Government Documents Department
open access

The Small Diesel Engine as an Automotive Engine

Description: Essential principles for building small diesel engines and also structural details so far as feasibility are presented.
Date: September 1921
Creator: Frey, Ernst
Partner: UNT Libraries Government Documents Department
open access

A New Dynamometer Brake

Description: The mechanism here described belongs to the class of dynamometer brake in which the motive power is transformed into heat in the brake itself. This mechanism was invented by the writer for the purpose of measuring forces in which the two factors, torque and speed, vary within broad limits, the mechanism itself being of simple construction and of still simpler operation.
Date: September 1921
Creator: Segrè, Marco
Partner: UNT Libraries Government Documents Department
open access

Performance of a vane driven-gear pump

Description: Given here are the results of a test conducted in a wind tunnel on the performance of a vane-driven gear pump used to pump gasoline upward into a small tank located within the upper wing from which it flows by gravity to the engine carburetor. Information is given on the efficiency of the pump, the head resistance of the vanes, the performance and characteristics of the unit with and without housing about the vanes, the pump performance when motor driven, and resistance and power characteristic… more
Date: September 1921
Creator: Heald, R. H.
Partner: UNT Libraries Government Documents Department
open access

The Effect of Staggering a Biplane

Description: This investigation was carried out by request of the United States Air Service at the Massachusetts Institute of Technology wind tunnel in 1918. As the data collected may be of general interest, they are published here by the National Advisory Committee for Aeronautics. The lift, drag, and center of pressure travel are determined for a biplane with a stagger varying from +100% to -100%. It is found that the efficiency and the maximum lift increase with positive stagger.
Date: September 1921
Creator: Norton, F. H.
Partner: UNT Libraries Government Documents Department
open access

The Recovery of Unburned Fuel from Boiler Furnace Refuse

Description: Report on recovering unburned fuel from boiler furnace refuse, based on processes used in Europe and tests in the United States.
Date: September 1921
Creator: Fraser, Thomas & Yancey, H. F.
Partner: UNT Libraries Government Documents Department
open access

The 1000 HP Traffic Airplane of the Zeppelin Works in Staaken

Description: Report details the characteristics and advantages of the swift traffic airplane constructed by Zeppelin Works at Staaken. The maximum speed, weight, construction, layout, and landing capabilities of the plane are included.
Date: September 1921
Creator: Rohrbach, A. K.
Partner: UNT Libraries Government Documents Department
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