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Oh! Can a passenger plane stop in mid air ??? How??? - 03-24-2010, 06:03 PM

Can a passenger plane stop in mid air ??? How???

Mchan I saw a passenger plane stop in mid air near the air port in Oman how could this be ?

we know according to the laws of physics that can't be but why its happening

it seems optical illusion but why pls explain in detail
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03-24-2010, 06:06 PM

if the forces acting on the plane on opposite directions are equal it can stop - But again what are da chances of that happening?
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03-24-2010, 06:10 PM

I got the same answer from my friend but if the wind speed equal to airspeed yeah that can happen but then i think plane will fall .... isn't it?
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03-24-2010, 06:10 PM

Quote:
Originally Posted by Y2K View Post
Can a passenger plane stop in mid air ??? How???

Mchan I saw a passenger plane stop in mid air near the air port in Oman how could this be ?

we know according to the laws of physics that can't be but why its happening

it seems optical illusion but why pls explain in detail
It depends on distance from plane to your place.angle,direction which it flied...
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03-24-2010, 06:13 PM

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Originally Posted by Y2K View Post
I got the same answer from my friend but if the wind speed equal to airspeed yeah that can happen but then i think plane will fall .... isn't it?
no idea
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03-24-2010, 06:14 PM

No mchan I saw it from different angles .... plane is not that too far even ..... direction is opposite so wht ?
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03-24-2010, 06:15 PM

yer it can be stopped in the mid air bt i dont no hw...........macho
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03-24-2010, 06:16 PM

Quote:
Originally Posted by Y2K View Post
No mchan I saw it from different angles .... plane is not that too far even ..... direction is opposite so wht ?
r u sure it was a plane, not a helicopter or some thing similar?
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03-24-2010, 06:18 PM

Hey I got this frm yahoo answers:

Can a passenger plane stop in mid air ??? How???

Relative to the ground? Yes. If the headwind is equal to the airspeed, they cancel each other out and you would see a plane stationary in the sky. However, you'd need wind speeds of at least 200mph for most planes. Think of how they test scale plane models in wind tunnels - the wind does the moving, not the plane, yet it still "flies".

blac[k]u was inintentionally right when saying "can't never" - a double negative, again cancelling each other out!
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03-24-2010, 06:19 PM

It depends on your definition of "stop" and "stationary'. Any fixed wing airplane can remain over the the same ground reference point if the airflow over (actually around & past) the wing is sufficient to maintain lift as well as impede forward progress. Such an aircraft would have "x" true airspeed, but a ground speed of zero. In fact a plane can even fly "in reverse" with a sufficiently strong enough headwind.

Such conditions are very seldom encountered, but are possible. This phenomenon (ground speed vs true airspeed) is the explanation why east- to-west travel takes somewhat longer than west-to-east travel. It's the effect high velocity upper atmosphere wind (jetstream). I answered this question in greater detail sometime back. RJ
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