|MadSci Network: Physics|
In a site about flying contraptions there's a page showing a drawing of a thing that they call "jet belt" (http://www.shreve.net/~jnuts/fly/old/jetbelt.html). My question is: would a "jet belt" built like that really be able to take off? I'm asking this because, as you can see, the air enters the turbine from down and the gases are ejected towards down too. Shouldn't the resulting forces be opposite and therefore cancel each other?
Re: 'Jet Belt': would that be possible?
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