Overview
The RRG Professor was a very early soaring glider and the first to use a variometer for finding thermals. It was designed by Alexander Lippisch in Germany, first flying in 1928. The Professor was widely built by both flying clubs and factories.
Specifications
Figures are compiled from public sources and may be approximate; they can vary by variant and configuration.
Photos
Photo 1: L'Aerophile magazine / Wikimedia Commons · Public domain
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