NASA NTRS · 19930094854
The 1929 Rhon soaring-flight contest
Abstract
The limitation of the 1929 contest to performance gliders necessitated the establishment of a formula which would make it possible to distinguish between performance gliders and school and training gliders. The sinking speed was therefore adopted as the basis for such a distinction, and the requirement was made that the sinking speed of a performance glider should not exceed 0.8 m/s. The rest of the report details the different entries with regard to design and performance.
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Lippisch, Alexander. 1930-04-01. The 1929 Rhon soaring-flight contest. https://ntrs.nasa.gov/citations/19930094854
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