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Testing a Windmill Airplane ("Autogiro")
In order to clear up the matter ( In the Spanish report it was stated that the reference surface for the calculation of the coefficients c(sub a) and c(sub w) was the area of all four wings, instead of a single wing), the model of a windwill airplane was tested in the Gottingen wind tunnel.
Date:
January 1927
Creator:
Seiferth, R.
System:
The UNT Digital Library
Stall-Proof Airplanes
Report investigating some characteristics of aircraft stall, including the following: Is the danger of stalling necessarily inherent in the airplane in its present form and structure, or can it be diminished or eliminated by suitable means? Do we possess such means or devices and how must they operate?
Date:
January 1927
Creator:
Lachmann, G.
System:
The UNT Digital Library
Determining the Efficiency of Atomization by Its Fineness and Uniformity
Different methods of determining the size of fuel droplets in the atomization process are presented. The distribution of those drops is also presented in graphic form.
Date:
January 1927
Creator:
Sauter, J.
System:
The UNT Digital Library