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National Advisory Committee for Aeronautics (NACA) - Browse

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N.A.C.A. control position recorder

Description: A new instrument is described which is capable of simultaneously recording the position of the three controls of an airplane. The records are taken photographically on a standard N.A.C.A. film drum and the instrument can be quickly installed in any airplane.
Date: May 1922
Creator: Norton, F. H.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Aerial convention of October 13, 1919

Description: The aerial convention delegates are listed as well as the set of rules that were developed during the session.
Date: May 1922
Creator: Roper,
Item Type: Report
Partner: UNT Libraries Government Documents Department

Aerial navigation by dead reckoning

Description: The problem to be solved, as presented to the pilot or observer of an aircraft, is as follows: The aircraft starting from A must land at B, the only data being the speed of the airplane, the altitude and the orientation D of the course. The above data would be amply sufficient, were it not for the fact that the airplane is constantly subjected to a wind of variable direction and strength.
Date: July 1922
Creator: Maffert, Pierre
Item Type: Report
Partner: UNT Libraries Government Documents Department

Aerial navigation : on the problem of guiding aircraft in a fog or by night when there is no visibility

Description: The use of magnetic fields and wire to navigate aircraft in conditions of poor visibility is presented. This field may be considered to be derived from a double lemniscate, considered in the particular case where the origin is a double point formed from the magnetic field of the slack wire, from the field produced by the return currents and from the field due to the currents induced in the conducting mass. These fields are dephased in two ways, one in the direction of the wire, the other in a direction perpendicular to it.
Date: January 1922
Creator: Loth, William
Item Type: Report
Partner: UNT Libraries Government Documents Department

Aerial transportation

Description: The origin of air traffic dates from the war. The important development of aeronautic industries and the progress made in recent years, under the impelling force of circumstances, rendered it possible, after the close of hostilities, to consider the practical utilization of this new means of economic expansion.
Date: February 1922
Creator: PIERROT
Item Type: Report
Partner: UNT Libraries Government Documents Department

Aerodynamic computation of gliders

Description: In the following discussion, a knowledge of the theoretical principles of airplane construction is assumed, as presented in detail by Vogt and Lippisch. A few quantities will however be otherwise designated, in accordance with the Gottingen symbols.
Date: September 1922
Creator: Schrenk, M
Item Type: Report
Partner: UNT Libraries Government Documents Department

Aerodynamic laboratory at Cuatro Vientos

Description: This report presents a listing of the many experiments in aerodynamics taking place at Cuatro Vientos. Some of the studies include: testing spheres, in order to determine coefficients; mechanical and chemical tests of materials; and various tests of propeller strength and flexibility.
Date: September 1922
Creator: JUBERA
Item Type: Report
Partner: UNT Libraries Government Documents Department

Aerodynamics and ballistics

Description: Ballistics is a science hundreds of years old and this report is an attempt to show how these older principles can be used in the newer science of aerodynamics.
Date: July 1922
Creator: Burzio, Filippo
Item Type: Report
Partner: UNT Libraries Government Documents Department

Aeronautic insurance

Description: The problem of insuring the emerging commercial aeronautic industry is detailed. The author also motes that a complete solution cannot be obtained until the necessary statistics are compiled.
Date: March 1922
Creator: Neal, Erik
Item Type: Report
Partner: UNT Libraries Government Documents Department

Aeronautical museums

Description: Different methods of presenting aeronautical artifacts are examined.
Date: November 1922
Creator: Warner, Edward P.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Air force and three moments for F-5-L Seaplane

Description: A model of the F-5-L seaplane was made, verified, and tested at 40 miles an hour in the 8' x 8' tunnel for lift and drag, also for pitching, yawing and rolling moments. Subsequently, the yawing moment test was repeated with a modified fin. The results are reported without VL scale correction.
Date: February 1922
Item Type: Report
Partner: UNT Libraries Government Documents Department

Air forces, moments and damping on model of fleet airship Shenandoah

Description: To furnish data for the design of the fleet airship Shenandoah, a model was made and tested in the 8 by 8 foot wind tunnel for wind forces, moments, and damping, under conditions described in this report. The results are given for air of standard density. P=0.00237 slugs per cubic foot with vl/v correction, and with but a brief discussion of the aerodynamic design features of the airship.
Date: 1922~
Creator: Zahm, A F; Smith, R H & Louden, F A
Item Type: Report
Partner: UNT Libraries Government Documents Department

Air reactions to objects moving at rates above the velocity of sound with application to the air propeller

Description: There has been a tradition general among aeronautical engineers that a critical point exists for tip speeds at or near the velocity of sound, indicating a physical limit in the use of propellers at higher tip speeds; the idea being that something would occur analogous to what is known in marine propellers as cavitation. In the examination of the physics pertaining to both propellers and projectiles moving at or above 1100 feet per second, the conclusion was reached by the author that there is no reason for the existence of such a critical point and that, if it had been noted by observers it was not inherent in the phenomena revealed, but rather due to a particular shape or proportion of the projectile and that, with properly proportioned sections, it would not exist.
Date: November 1922
Creator: Reed, S. Albert
Item Type: Report
Partner: UNT Libraries Government Documents Department

Air traffic

Description: This report presents a recounting of the steps taken by France to establish national and international regulation over air traffic.
Date: May 1, 1922
Creator: Sudre, G
Item Type: Report
Partner: UNT Libraries Government Documents Department

Air transport economics

Description: The report presents a determination of air transport costs with and without subsidies.
Date: October 1, 1922
Creator: Warner, Edward P.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Airplane performance, past and present

Description: The progress of airplane performance, measured by speed, is recounted in this article.
Date: December 1922
Creator: Warner, Edward P.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Airplane stability calculations and their verification by flight tests

Description: For some time, the designers of airplanes have begun to occupy themselves with the question of longitudinal stability. In their quest to simplify calculation and data collection, the designers have attached the greatest importance to the coefficient of initial longitudinal stability. In this study a diagram was constructed from the data of the tunnel tests, which depends neither on the position of the center of gravity nor of the angle of deflection of the elevators. This diagram is constructed by means of straight lines drawn through the metacenters of the complete airplane, in a direction parallel to the tangents to the polar of the airplane relative to a system of axes fixed with reference to the airplane.
Date: July 1, 1922
Creator: Rota, Augusto
Item Type: Report
Partner: UNT Libraries Government Documents Department

Analysis of stresses in German airplanes

Description: This report contains an account of the origin of the views and fundamental principles underlying the construction of German airplanes during the war. The report contains a detailed discussion of the aerodynamic principles and their use in determining the strength of airplanes, the analysis of the strength qualities of materials and in the construction, the calculated strength of air flows and a description of tests made in determining the strength of airplanes.
Date: 1922
Creator: Hoff, Wilhelm
Item Type: Report
Partner: UNT Libraries Government Documents Department

Applying the results of experiments on small models in the wind tunnel to the calculation of full-sized aircraft

Description: This report presents the attempt to develop a law which will permit the use of results obtained on small models in a tunnel for the calculation of full-sized airplanes, or if it exists, a law of similitude relating air forces on a full-sized plane to those on a reduced scale model.
Date: April 1922
Creator: ROBERT
Item Type: Report
Partner: UNT Libraries Government Documents Department

Aviation and insurance

Description: This article considers some of the causes which hinder the development of aircraft insurance. Different risks are discussed as well as the causes of aircraft accidents. Pilot error, poor airdromes, weather conditions, poorly adapted airplanes, and engine failures are all examined and some conclusions are made.
Date: May 1922
Creator: Mayo, R H
Item Type: Report
Partner: UNT Libraries Government Documents Department

Aviation in the Belgian Congo

Description: The establishment of air service in the Belgian Congo is detailed in this report. The airplanes, landing fields, and air routes are all discussed.
Date: July 1922
Creator: Van Crombrugge, A
Item Type: Report
Partner: UNT Libraries Government Documents Department

Bagnulo heavy fuel internal combustion engine and its employment in aviation

Description: We see with great satisfaction that Bagnulo's studies and experiments on his high-speed, heavy-fuel engines, promise to solve not only the general problem of economical power and hence of thermal efficiency, but also all other special problems, of weight and space, and, what is still more important, range of error.
Date: March 1, 1922
Creator: Fiore, Amedeo
Item Type: Report
Partner: UNT Libraries Government Documents Department