Serial/Series Title
5 Matching Results
Results open in a new window/tab.
Results:
1 - 5 of
5
Experimental Research on the Friction of Pivots
In horology the friction between solids is of the greatest importance; one limited, however, to the application of the laws of Coulomb which, do not at all correspond with reality. This report presents a review of the subject and some general conclusions. The choice of lubricant is discussed as well as the pressure between frictional surfaces. The gears in a watch are used extensively as examples.
Date:
May 1930
Creator:
Jaquerod, A.; Defossez, L. & Mügeli, H
System:
The UNT Digital Library
Balanced and Servo Control Surfaces
"Many reports on various control systems are available, but the results cannot be generally applied since the effect of particular changes of surface-form and mounting are subject to variations depending upon airfoil section and influences of airplane layout. This report presents a simple analysis of several control systems in more general use. Elevators, ailerons, and rudders are all discussed" (p. 1).
Date:
May 1930
Creator:
unknown
System:
The UNT Digital Library
The Magnus Effect in Theory and in Reality
A discussion of the Flettner rotor is presented from a nautical and economic viewpoint, and although it was a failure, the experimental and theoretical inventions cannot be disregarded. The following critical and experimental investigation will show the relations and applicability of the theories and practical applications. The Magnus effect is described in detail and a discussion and critical review of the Magnus effect is included.
Date:
May 1930
Creator:
Ahlborn, F.
System:
The UNT Digital Library
Development of the Junkers-Diesel Aircraft Engine
The working process of the Junkers engine has resulted from a series of attempts to attain high performance and to control the necessarily rapid and complete combustion at extremely high speeds. The two main problems of Diesel engines in aircraft are addressed; namely, incomplete combustion and the greater weight of Diesel engine parts compared to gasoline engines.
Date:
May 1930
Creator:
Gasterstädt
System:
The UNT Digital Library
Recent Tests of Tailless Airplanes
This report details the advantages and construction of tailless airplanes. Both a glider and a powered model were built and the specifications of both airplanes are listed.
Date:
May 1930
Creator:
Lippisch, Alexander
System:
The UNT Digital Library