Santos-Dumont No 20 Demoiselle
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About the model
An exceptionally detailed CO2 powered model by Georg Törnkvist. It has proved tricky to trim properly,
but at the 2005 Swedish indoor championships it finally achieved a perfect flight. The model is based on the Demoiselle
which is preserved in the Musée de l'Air in Paris.
About the origial
This construction, a development of the earlier No 19, made it's debut in the early months of 1909. It was built in series by Clément-Bayard and by
Santos-Dumont himself. Many more were made by amateur builders attracted by the simplicity of the machine; detailed construction drawings were
published in Popular Mechanics.
A scale 3-view + description is featured in: Peanuts & Pistachios No 6.
