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  Partner: UNT Libraries Government Documents Department
 Decade: 1920-1929
 Serial/Series Title: NACA Technical Memorandums
A petrol-proof flexible tubing at last: an invention of the greatest importance to aviation

A petrol-proof flexible tubing at last: an invention of the greatest importance to aviation

Date: October 1, 1921
Creator: unknown
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Some remarks concerning soaring flight

Some remarks concerning soaring flight

Date: October 1, 1921
Creator: Prandtl, L
Description: The publication of the following details is due to the desire of the editor to have the problems of soaring flight treated on the occasion of the Rhone Soaring Flight Contest.
Contributing Partner: UNT Libraries Government Documents Department
Aeronautic instruction in Germany

Aeronautic instruction in Germany

Date: November 1, 1921
Creator: Bouche, Henri
Description: This report contains a list of the courses relating to aeronautics announced in Germany, both in the technical high schools and in the universities.
Contributing Partner: UNT Libraries Government Documents Department
The danger of stalled flight and an analysis of the factors which govern it

The danger of stalled flight and an analysis of the factors which govern it

Date: November 1, 1921
Creator: Hopf, L
Description: A definition of "stalled fight" is presented as well as a detailed discussion on the how and why it occurs. Some suggestions are made to prevent its occurrence such as carrying an air speed instrument in the airplane.
Contributing Partner: UNT Libraries Government Documents Department
Establishment of aviation schools

Establishment of aviation schools

Date: November 1, 1921
Creator: Kempe, Erich
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Extracts from the Belgian regulations for government assistance to air transport companies

Extracts from the Belgian regulations for government assistance to air transport companies

Date: November 1, 1921
Creator: unknown
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Traffic airships with special reference to economy

Traffic airships with special reference to economy

Date: November 1, 1921
Creator: Leyensetter, Walther
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.
Contributing 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

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

Date: January 1, 1922
Creator: Loth, William
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.
Contributing Partner: UNT Libraries Government Documents Department
Behavior of aviation engines at different air densities

Behavior of aviation engines at different air densities

Date: January 1, 1922
Creator: Schwager, O
Description: The author expresses his views that engine performance would be affected only at very low temperatures is presented in this report.
Contributing Partner: UNT Libraries Government Documents Department
The glider

The glider

Date: January 1, 1922
Creator: Blume, W
Description: This report presents the results of testing on a glider designed and built by the College Aviation Group. The design and construction were based on the following principles: 1) the glider will be made to descend as slowly as possible; 2) rigidity and resistance were arranged to meet the conditions of varied loads; 3) construction is as simple as possible; 4) and great ease in assembling and dismounting have been sought.
Contributing Partner: UNT Libraries Government Documents Department