Contribution to the Systematic Investigation on Joukowsky Profiles (open access)

Contribution to the Systematic Investigation on Joukowsky Profiles

"This article resulted from the need of showing, in a simple way, how the aerodynamic properties of airfoils are affected by the shape of their profiles. No general solution of this problem could be found, since the profile shapes cannot ordinarily be expressed by simple mathematical formulas. This advantage is possessed only by the Joukowsky profiles and this discussion of the problem is therefore limited to them" (p. 1).
Date: April 1928
Creator: Loew, Gottfried
System: The UNT Digital Library
Steel Spars (open access)

Steel Spars

A history of English metal spar construction is presented in this paper. The way in which different spar designs or spar materials influence the aircraft wing loading and aerodynamics is described.
Date: April 1928
Creator: Martin, Brian L.
System: The UNT Digital Library
Variable Pitch Propellers (open access)

Variable Pitch Propellers

It is proposed in this report to explain the Gloster Hele-Shaw Beacham variable pitch propeller. It is a variable pitch propeller, which has been theorized to greatly improve the performance of an airplane or airship. An explanation of the way the propeller works and some of the physics behind propeller operation are provided.
Date: April 1928
Creator: Milner, H. L.
System: The UNT Digital Library
Take-Off of Heavily Loaded Airplanes (open access)

Take-Off of Heavily Loaded Airplanes

In the present article, several suggestions will be made for shortening the otherwise long take-off distance. For the numerical verification of the process, I will use a graphic method for determining the take-off distance of seaplanes.
Date: April 1928
Creator: Pröll, A.
System: The UNT Digital Library