this post was submitted on 23 May 2025
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It's not pressure under the wings, it's fucking Bernoulli sucking on top of them.
(So, yes, sure, it is gay, but it's not fake.)
But then how can they fly upside down?
A fighter jet is basically a fancy dart, and darts dgaf about gravity
Flaps. (As in, the hinged bits at the back edge of the wings, that essentially change the shape of the wing as required, not by flapping the wings; that'd be an ornithopter, as in Dune, not a plane.)
But... right-side-up, the plane fights gravity, has upward lift, according to Bernoulli principle. And even if we angle the flaps to decrease altitude, it's still not dropping like a rock, the wings still generate lots of upward lift.
400 ton plane, wings w 400 ton lift = flight
Now (before engaging flaps) those same wings upside down would be generating downward "lift" PLUS pull of gravity. So now the 400 ton plane is like an 800 ton plane. Can the flaps alone lift that? Or, said another way, if we gave the plane flat wings, no Bernoulli, and stacked another plane on top of it (to make 800 tons), could it fly right-side-up just using flaps?
Because air doesn't give a fuck about gravity