Santos-Dumont No 20 Demoiselle
Click on an image to see it in high resolution
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.