Quote:
Originally Posted by Isaac
I wonder why Stipa and Caproni thought flying a hollow cylinder was a good idea?
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Because they were quite a bit ahead of their time.
Nowadays it's very much the done thing to go places with the help of a ducted fan propeller, often in the form of a fan powered by a jet engine when it gets called a turbofan.
Of course putting one or more under each wing gives a much less odd look.
https://en.wikipedia.org/wiki/Ducted_fan
https://en.wikipedia.org/wiki/Turbofan