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-   -   Life Pick 5 posters you'd like to have dinner with. (https://chiefsplanet.com/BB/showthread.php?t=212553)

Buck 08-25-2009 04:16 PM

Quote:

Originally Posted by Donger (Post 6000653)
If the wheels were locked (not spinning), and the treadmill was accelerated to the speed required for flight, then yes, it would take off. If the wheels were free to spin, the plane would not move forward relative to the ground and would therefore have no lift.

See my propeller question

Jenson71 08-25-2009 04:16 PM

Quote:

Originally Posted by Donger (Post 6000653)
If the wheels were locked (not spinning), and the treadmill was accelerated to the speed required for flight, then yes, it would take off. If the wheels were free to spin, the plane would not move forward relative to the ground and would therefore have no lift.

I always thought the treadmill would be going the opposite way of the plane's forward motion (or attempt at motion).

Donger 08-25-2009 04:18 PM

Quote:

Originally Posted by Jenson71 (Post 6000657)
I always thought the treadmill would be going the opposite way of the plane's forward motion (or attempt at motion).

Again, if the wheels were spinning, it would make no difference.

Donger 08-25-2009 04:19 PM

Quote:

Originally Posted by BuckinKaeding (Post 6000648)
But what if the plane uses a propeller to push the wind? Or does the propeller not do that?

A plane uses a propeller to provide thrust, yes.

Buck 08-25-2009 04:21 PM

Quote:

Originally Posted by Donger (Post 6000662)
A plane uses a propeller to provide thrust, yes.

So ignoring friction, if the planes wheels were just spinning, and the plane remained still relative to the ground, and then the propellers turned on and spun fast enough (theoretically), that would not create enough lift for the plane to take off?

MIAdragon 08-25-2009 04:21 PM

What no one want's to dine on South Beach with me!?

Buck 08-25-2009 04:22 PM

I would eat w/ MIAdragon, and then kick him out for his avatar for the after party.

BigVE 08-25-2009 04:24 PM

Quote:

Originally Posted by MIAdragon (Post 6000668)
What no one want's to dine on South Beach with me!?

Have you ever figured out who that chic in your avatar is?

The Franchise 08-25-2009 04:24 PM

Quote:

Originally Posted by Sofa King (Post 6000607)
i specifically looked for your name, i apparantly forgot to copy your name with it...



and how did i forget to mention Mr.Plow? that guy is as cool as the other side of the pillow.

Damn....I totally forgot Plow. I gotta add him to the list. Sorry Dane....you're out.

DaFace 08-25-2009 04:25 PM

Quote:

Originally Posted by Donger (Post 6000629)
Then they did not use the same criteria described above.

If the planes wheels are spinning, then the aircraft has no relative ground speed. If if has no relative ground speed, no air is flowing over the aircraft's wings. If no air is flowing over the wings, there is no lift. If there is no lift, the plane will not fly.

That would only make sense if the plane were being propelled by its wheels. And even then, you could still take off (in theory) if the wheels are moving more quickly than the treadmill.

Donger 08-25-2009 04:26 PM

Quote:

Originally Posted by BuckinKaeding (Post 6000667)
So ignoring friction, if the planes wheels were just spinning, and the plane remained still relative to the ground, and then the propellers turned on and spun fast enough (theoretically), that would not create enough lift for the plane to take off?

No, it would not. Air flowing over the wing creates lift. However, if you ever played with a rubber band aircraft, you'll remember that if you really cranked the rubber band up, you could hold the plane with the propeller facing the sky and the propeller would create enough lift (briefly) for the plane to increase altitude. Not unlike a helicopter's rotor.

MIAdragon 08-25-2009 04:26 PM

Quote:

Originally Posted by BuckinKaeding (Post 6000670)
I would eat w/ MIAdragon, and then kick him out for his avatar for the after party.

LMAO

RNR 08-25-2009 04:26 PM

Quote:

Originally Posted by JOhn (Post 6000646)
ROFL

no he's a dude...well as far as I know. but his nickname is Karen. :D

Or maybe he/she is? :doh!:

There are several on here I would still like to meet, and would enjoy seeing those I have met again. That list used to include JOhn :shake:



:)

MIAdragon 08-25-2009 04:26 PM

Quote:

Originally Posted by BigVE (Post 6000673)
Have you ever figured out who that chic in your avatar is?

Sadly no.

stevieray 08-25-2009 04:28 PM

Quote:

Originally Posted by Donger (Post 6000660)
Again, if the wheels were spinning, it would make no difference.

they used a plane and a 1oooft tarp being pulled the opposite direction.

the pilot said before the attempt didn't he think it would work either. maybe you're related ;)


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