Lonelygirl15

acidfingers · Lonely Fan Joined: 12 Oct 2006 Posts: 147

There's a difference between taking off and maintaining flight.

My two cents:

It would eventually get to a speed where the forward thrust from the engines would exceed the friction from the wheels and air and it would begin to take flight. The problem would arise at that moment, wherein it would have lost the forces of friction from the wheels and subsequently crash back to the ground.

It all boils down to forces acting on the plane, which the picture that I posted explains
_________________
[13:09:39] <marlasinger> acid's like a pussy sore, if you keep playing with it it just gets worse.

LesterG · Posted: Thu Mar 01, 2007 3:53 pm Post subject:

wintermute · Posted: Fri Mar 02, 2007 9:30 am Post subject:

Forward thrust will overcome friction. But there are four forces acting upon the plane. The picture only explains two.

And Lester, I think "The problem would arise at that moment" means fireworks Wink

'mute

edit: missed your picture. Original picture only explains two. Doh!

'mute
_________________
Proud member of LG15 Defense Force.
Proud member of "The Five" (who have been "Tagged" by Hymn of One).

'vote 'mute in '16!

Mirage · Posted: Fri Mar 02, 2007 9:32 am Post subject:

Jamidru · Posted: Fri Mar 02, 2007 9:39 am Post subject:

Mirage

Mirage · Posted: Fri Mar 02, 2007 9:42 am Post subject:

*blush*

What? Laughing

AutoPilate · Posted: Fri Mar 02, 2007 9:42 am Post subject:

Oh snap, Mirage pulled a Sheikh! Shocked

[/impressed]
_________________
Why was there BACON IN THE SOAP?!

Mirage · Posted: Fri Mar 02, 2007 9:48 am Post subject:

Eric · Posted: Fri Mar 02, 2007 10:39 am Post subject:

Doh! I want to change my answer! I was assuming that the treadmill was running backwards to push the plane forwards. If it's running in the correct direction to keep the plane in the same spot relative to the unmoving ground then no, it won't take off. An airfoil needs air moving across it to generate lift. This air movement is generated by the engine thrust moving the plane (well the wing part of it anyway) through the air mass. If the airplane is standing still relative to the surrounding air mass then it will stay firmly planted on the belt no matter how much thrust it generates ... assuming the belt is capable of moving fast enough to match the forward thrust generated by the engines ... and assuming that there's not a hurricane in the area ... or a really, really big fan at the front of the treadmill.

AutoPilate · Posted: Fri Mar 02, 2007 10:44 am Post subject:

I've been saying this all along.
_________________
Why was there BACON IN THE SOAP?!

Ziola · The Order of Denderah Joined: 17 Oct 2006 Posts: 5774

Jamidru · Posted: Fri Mar 02, 2007 10:48 am Post subject:

mmmmmmmmmmmmmmm yum.

uh Z could I uh? have some?

Ziola · The Order of Denderah Joined: 17 Oct 2006 Posts: 5774

Of course

wintermute · Posted: Fri Mar 02, 2007 10:52 am Post subject:

Killthesmiley · Posted: Fri Mar 02, 2007 11:07 am Post subject:

well now i just want to see this done!
_________________
kelly

YOU: Who does that KTS think she is? Total bitch!

ME: I think I'm you, only better.

~Kelly, KMurr, and Kellylen <3~