National Advisory Committee for Aeronautics (NACA) - 125 Matching Results

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The Coupling of Engines

Description: This report examines the idea of coupling numerous engines together to turn a single propeller, which the author feels would free aircraft design from the problems of multi-engine and propeller design.
Date: April 1921
Creator: Boccaccio, Paul
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Art of Writing Scientific Reports

Description: As the purpose of the report is to transmit as smoothly and as easily as possible, certain facts and ideas, to the average person likely to read it, it should be written in a full and simple enough manner to be comprehended by the least tutored, and still not be boring to the more learned readers.
Date: March 1921
Creator: Norton, F. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Rumpler Passenger Airplane

Description: This report details the Rumpler Limousine which was a further development of the well known type 5 A 2. The fuselage, engine, cabin, wings, controls, and landing gear are all discussed.
Date: March 1921
Creator: Langsdorff, Werner v.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Resume of the Theory of Naval and Aerial Propulsive Propellers and of Airplanes in the Rectilinear Flight

Description: Though dissimilar, these two subjects have been united because they have some points in common. The computation of the movement of an airplane can only be correctly established if we are in a position to know exactly the thrust and resisting torque of the propeller for the various values of slip, which may vary greatly according to circumstance. The first part of the work concerns propellers and introduces as a fundamental variable, the true slip (delta) with respect to the effective pitch, whi… more
Date: April 1921
Creator: Rateau, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Technical Development of the Transport airplane: Report of the Aero-Technical Conference of the Scientific Association for Aeronautics, March 5, 1919

Description: The abolition of military qualifications gives free scope to new technical possibilities in the development of transport airplanes. This report notes the various considerations that must be made when designing aircraft to meet the needs of commercial passengers. Comfort and safety must be emphasized.
Date: April 1921
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Study of the Resistance Offered by Propellers Rotating on an Airstream

Description: This report presents a series of tests conducted to verify the formula for thrust P = q(exp 2) D(exp 2) V(exp 2), where P represents thrust, V the velocity of the airstream, D the diameter of the propeller, and q the lifting quality of a comparative propeller which is called the conjugate propeller.
Date: April 1921
Creator: Lame, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Extracts from the German Technical Process. Transport Airplanes.

Description: Report presenting a description of the transition stage of airplanes and how it will change with new developments in aircraft design. The details of the debate between centralized or decentralized installation are also provided, including some of the pros and cons of each.
Date: April 1921
Creator: Rohrbach, A. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Observations on the Method of Determining the Velocity of Airships

Description: To obtain the absolute velocity of an airship by knowing the speed at which two routes are covered, we have only to determine the geographical direction of the routes which we locate from a map, and the angles of routes as given by the compass, after correcting for the variation (the algebraical sum of the local magnetic declination and the deviation).
Date: June 1921
Creator: Volterra, Vito
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Dynamometer Hub and the Flywheel of the Engine

Description: Report presenting a description of the interaction between the dynamometer hub and the flywheel of the engine in aircraft. The negative rotary moments in propellers generally allow for the cessation of one cylinder without any lifting on the part of the propeller, and without depriving the engine of its flywheel.
Date: June 1921
Creator: Everling, E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Simple Means for Saving Fuel on Traffic Flights

Description: Report presenting a discussion of ways to save fuel on traffic flights, including some calculations that can be used for determining fuel efficiency. The primary ways of lessening fuel consumption include flying with a throttled engine and diminished speed.
Date: June 1921
Creator: Kook, E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Establishment of Aviation Schools

Description: Report presenting a discussion of the creation of a suitable aviation school and some of the characteristics that should be considered in terms of hiring personnel, creating a curriculum, and obtaining equipment.
Date: November 1921
Creator: Kempe, Erich
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Traffic Airships With Special Reference to Economy

Description: The first part of this report details the efficiency and economy of airship travel, while the second part presents methods of economic efficiency with regards to construction, cost of upkeep and operation, and the establishment of airship lines.
Date: November 1921
Creator: Leyensetter, Walther
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Dependence of Propeller Efficiency on Angle of Attack of Propeller Blade

Description: In order to determine the maximum and the most favorable pitch for a propeller, it was found desirable to investigate the dependence of propeller efficiency on the angle of attack of the propeller blade. The results of a few experiments are given to show that propeller blades conduct themselves just like airplane wings with reference to the dependence of their efficiency on their angle of attack.
Date: December 1921
Creator: Borck, Hermann
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Pressure Measurements During Flight

Description: The general idea was to record the air pressure on the spot, that is, without intervening tubes, by some simple automatic registering device. This was therefore made in such small dimensions that it could be inserted into the wing between the ribs and stand in direct connection with the pressure openings. The results of different experiments are presented along with the best locations for locating the instruments for recording the pressure.
Date: November 1921
Creator: Pröll, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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