Serial/Series Title

Language

Experiments With Airplane Brakes (open access)

Experiments With Airplane Brakes

This report begins by examining the forces on the brake shoes. For the determination of the load distribution over the shoes it was assumed that the brake linings follow Hooke's law, are neatly fitted and bedded in by wear. The assumption of Hooke's law, that is, the proportionality between compression of the lining and the absorption of force, is fulfilled to a certain extent for the loading, as becomes apparent from the load tests described further on. But there is a material discrepancy at unloading.
Date: September 1931
Creator: Michael, Franz
System: The UNT Digital Library
On Floats and Float Tests (open access)

On Floats and Float Tests

The principal source of information on float resistance is the model test. In view of the insuperable difficulties opposing any attempt at theoretical treatment of the resistance problem, particularly at attitudes which tend toward satisfactory take-off, such as the transitory stage to planing, the towing test is and will remain the primary method for some time.
Date: September 1931
Creator: Seewald, Friedrich
System: The UNT Digital Library
The Dangerous Sideslip of a Stalled Airplane and Its Prevention (open access)

The Dangerous Sideslip of a Stalled Airplane and Its Prevention

This investigation covers only that phase of airplane accidents which are the result of sideslip. We examine the circumstances under which this occurs, study the behavior of present-day airplane types (monoplane, conventional and staggered biplane) therein and endeavor to find a solution whereby this danger may be avoided.
Date: September 1931
Creator: Fuchs, Richard & Schmidt, Wilhelm
System: The UNT Digital Library
The development, design and construction of gliders and sailplanes (open access)

The development, design and construction of gliders and sailplanes

This report explains and details the history of glider design and construction through the impetus of the Rhon Sailplane contests. Some of the topics considered include: whether the longitudinal stability (dynamic and static) is sufficient in the tailless typo and a consideration that the structural weight of sweptback wings would be greater than that of a corresponding normal wing.
Date: September 1931
Creator: Lippisch, A.
System: The UNT Digital Library