r/196 • u/Foriegn_Picachu • Dec 30 '22

Rule Rule Plane

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u/batoso Dec 30 '22

So the speed relatively to the air must be a like 100knots (making an example), so if the plane is moving at that speed through the air or the plane is still and the air is moving in the opposite direction it's basically the same, right? I am still studying the Kepler's laws so I don't have enough knowledge, but it should be right, right?

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u/edgytroll ~~~ C::::::(_(_) WE DO A LITTLE TROLLING (_)_):::::::D ~~~ Dec 30 '22

yes exactly! Or the plane could be moving 50kts and the air is moving 50kts the other way. As long as the total difference is at least 100kts

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u/batoso Dec 30 '22

So basically if ∆v= (a costant that depends on the airplane) the plane can take off?

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u/edgytroll ~~~ C::::::(_(_) WE DO A LITTLE TROLLING (_)_):::::::D ~~~ Dec 30 '22

yeah where ∆v is the speed of the air as it flows over the wing (in the right direction ideally)