I get that the spinny fan like pulls it up but like how does it spin because if I theoretically have a massive fan that spun at extreme speeds will my house fly?
Plus why do helicopters need spinny things when literally every other thing that flies just has wings and an engine. Also if the fan spins why does it spinning pull it up like when it’s on the ground it stays still but when it’s in the sky u can like manoeuvre it 360 like what.
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As the rotors (spinny fan) spin they create an area of low pressure above them, and (consequentially) an area of higher pressure under them.
Air likes to go from high pressure to low pressure. So it does.
And that takes the rotors with it (and whatever’s attached to the wings). So the whole machine lifts up.
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