The Virtual
Aviation Museum
european aviation-
history on the internet
www.luftfahrtmuseum.com

Sud-Ouest SO 1221 Djinn (Helio)
 

The Rotor of the Djinn was propelled by compressed
air led through nozzles at their end. The air was
compressed by a compressor driven by a gas turbine.
This type of propulsion was not successfull due to
its low efficiency.