Jet engines that you find (most commonly) or airplanes have a particular kind of fan that helps make the whole thing work. Here's what it does.

The reduced demand on the hot air thrust also reduces the amount of noise. Plastic isn’t going to cut it for a real jet engine, although you can 3D print some parts of one . Bonus hacker cred if ...

Jet engines that you find (most commonly) or airplanes have a particular kind of fan that helps make the whole thing work. Here's what it does.