timberwolf0122 t1_irrhvh8 wrote
Reply to comment by AnthillOmbudsman in TIL that passenger jet engines produce most of their thrust from fan at the front, not from the jet exhaust, and that this is called a high-bypass engine. by Rilot
It would work, just not as well. The ducted fans are upto 90% more efficient than a free fan and quieter too. Additionally the duct protects the fan from debris and protects ground crew from accidental contact
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