Couldn’t the compressed air by itself make a plane fly? Or does it need that extra energy from the combustion chamber to make a plane fly?
In: Engineering
Without a combustion chamber it’s just a ducted propeller plane. So yes it can fly*, but not if you want to be able to travel high, fast, far, and carrying a lot of stuff.
*They could build planes around such engines. Current jets can not fly without fuel.
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