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  Partner: UNT Libraries Government Documents Department
 Serial/Series Title: NACA Technical Memorandums
 Collection: National Advisory Committee for Aeronautics Collection
Rates for flights organized by the state

Rates for flights organized by the state

Date: April 1, 1921
Creator: unknown
Description: None
Contributing Partner: UNT Libraries Government Documents Department
The art of writing scientific reports

The art of writing scientific reports

Date: March 1, 1921
Creator: Norton, F H
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.
Contributing Partner: UNT Libraries Government Documents Department
The technical development of the transport airplane.Report of the Aero-Technical Conference of the Scientific Association for Aeronautics, March 5, 1919

The technical development of the transport airplane.Report of the Aero-Technical Conference of the Scientific Association for Aeronautics, March 5, 1919

Date: April 1, 1921
Creator: unknown
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.
Contributing Partner: UNT Libraries Government Documents Department
Variable pitch propellers

Variable pitch propellers

Date: November 1, 1920
Creator: unknown
Description: In this report are described four different types of propellers which appeared at widely separated dates, but which were exhibited together at the last Salon de l'Aeronautique. The four propellers are the Chaviere variable pitch propeller, the variable pitch propeller used on the Clement Bayard dirigible, the variable pitch propeller used on Italian dirigibles, and the Levasseur variable pitch propeller.
Contributing Partner: UNT Libraries Government Documents Department
Study of the resistance offered by propellers rotating on an airstream

Study of the resistance offered by propellers rotating on an airstream

Date: January 1, 1921
Creator: Lame, M
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.
Contributing Partner: UNT Libraries Government Documents Department
Abacus for the reduction of English measures to the metric system and vice versa

Abacus for the reduction of English measures to the metric system and vice versa

Date: July 1, 1921
Creator: Tenani, Mario
Description: This report presents a description of the abacus as well as construction details. There is also a detailed description on how to use the abacus.
Contributing Partner: UNT Libraries Government Documents Department
Observations on the method of determining the velocity of airships

Observations on the method of determining the velocity of airships

Date: June 1, 1921
Creator: Volterra, Vito
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).
Contributing Partner: UNT Libraries Government Documents Department
Flexible petrol pipe

Flexible petrol pipe

Date: July 1, 1921
Creator: unknown
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Simple means for saving fuel on traffic flights

Simple means for saving fuel on traffic flights

Date: June 1, 1921
Creator: Kook, E
Description: None
Contributing Partner: UNT Libraries Government Documents Department
British certificates of airworthiness

British certificates of airworthiness

Date: May 1, 1921
Creator: unknown
Description: This report details the rules and regulations for obtaining a British airworthiness certificate. Aircraft loading and construction are especially important.
Contributing Partner: UNT Libraries Government Documents Department