Funny, Strange, Random Pics - Page 1216

Rathgar · 01-27-2008, 11:02 PM

Yeah that's totally real guys.

Darkreapr · 01-27-2008, 11:14 PM

Classic

Angerz · 01-27-2008, 11:23 PM

Quote:

Originally Posted by Darkreapr

Classic

Find out next week on mythbusters.

Ronne · 01-27-2008, 11:43 PM

Quote:

Originally Posted by Angerz

Find out next week on mythbusters.

I'm actually really fucking excited to see this.

brekk · 01-28-2008, 12:20 AM

Quote:

Originally Posted by Ronne

I'm actually really fucking excited to see this.

why? there is one obvious outcome, and its not unexpected.

Amzin · 01-28-2008, 12:25 AM

I can't understand how that myth even got started. Planes fly by generating lift as the wings move through the air. On a treadmill, the wings don't move at all, thus no lift.

Also: A pic, maybe a repost.

brekk · 01-28-2008, 12:27 AM

Quote:

Originally Posted by Amzin

I can't understand how that myth even got started. Planes fly by generating lift as the wings move through the air. On a treadmill, the wings don't move at all, thus no lift.

God i hate you.

Khempis · 01-28-2008, 12:46 AM

Edit:

Disregard. I was under the assumption that they were simply trying to shorten the take-off. Not keep the plane completely stationary.

Pic (Yeah, an old one, but it's awesome).

Amzin · 01-28-2008, 01:02 AM

Quote:

Originally Posted by brekk

God i hate you.

Sorry, should I have used spoiler tags?

FoghornDeadhorn · 01-28-2008, 01:03 AM

It's not hard to understand. Planes pull themselves through the air, there is no thrust being put through the wheels, and to be 100% frank about it, if the plane isn't moving through the air, which is what generates lift, then it's not moving, therefore the treadmill would not move. Therefore, for the treadmill to move at all, the plane would have to be moving in space, through air, and therefore generating lift. All that would happen is the wheels would spin twice as fast, because for any given air speed, the ground underneath is moving, spinning the wheels, twice as fast as normal.

That is the reality, and their test with the tiny treadmill doesn't even allow that, so I'll be waiting to see exactly how they test with the real plane.

Khempis · 01-28-2008, 01:15 AM

Theoretically... the airplane speed relative to the track would be zero, but if they were to have one hell of a (constant) gust of wind then it would be possibly to get off of the belt. The only way for that to happen, imo, would be to borrow a carrier from the US Navy and ask if they wouldn't mind doing a test, lol. It'll never happen, but if they had the conveyor-belt-thing on the flight deck of a carrier cutting into the wind at a fairly high rate of travel then wouldn't it be possibly to provide the right velocity of air traveling over the wing?

/shrug

K`Lag · 01-28-2008, 01:15 AM

Quote:

Originally Posted by Screamfeeder

Dubai.

1991-2005

2008

Malakriss · 01-28-2008, 01:18 AM

I'm confused about what they're actually testing. Obviously if the plane's accelerating in the opposite direction of the conveyor belt and it remains in a fixed location, nothing will happen. Are they testing that, or if you have a long enough conveyor belt doing the work and moving the plane, it will generate enough lift for takeoff?

Doesn't seem very practical, even if it does work it would only save the gas fuel required for takeoff and replace it with the electricity needed to power a gigantic conveyor runway.

Grayson Carlyle · 01-28-2008, 01:27 AM

Quote:

Originally Posted by Khempis

Theoretically... the airplane speed relative to the track would be zero

You've already failed. The plane is not a car.

Stoerm · 01-28-2008, 01:31 AM

Quote:

Originally Posted by Amzin

I can't understand how that myth even got started. Planes fly by generating lift as the wings move through the air. On a treadmill, the wings don't move at all, thus no lift.

Also: A pic, maybe a repost.

Now explain to us how the hell the treadmill is going to have any effect on the plane's ability to generate lift by moving.

01-27-2008, 11:02 PM	#18226 (permalink)
Rathgar Not a Dick Connoisseur Join Date: Nov 2003 Posts: 889 -3 Internets	Yeah that's totally real guys. __________________ Reaching for the random.

01-27-2008, 11:14 PM	#18227 (permalink)
Darkreapr Registered User Join Date: Feb 2004 Posts: 171 -17 Internets	Classic Attached Images

01-28-2008, 12:25 AM	#18231 (permalink)
Amzin Unfortunately Curious Join Date: May 2006 Location: 30 minutes from everywhere Posts: 551 -3 Internets	I can't understand how that myth even got started. Planes fly by generating lift as the wings move through the air. On a treadmill, the wings don't move at all, thus no lift. Also: A pic, maybe a repost. Attached Images

01-28-2008, 12:46 AM	#18233 (permalink)
Khempis Nifty Join Date: May 2005 Location: Japan Posts: 732	Edit: Disregard. I was under the assumption that they were simply trying to shorten the take-off. Not keep the plane completely stationary. Pic (Yeah, an old one, but it's awesome). __________________ Clothes make the man. Naked people have little or no influence on society. -Mark Twain Last edited by Khempis; 01-28-2008 at 12:55 AM..

01-28-2008, 01:15 AM	#18236 (permalink)
Khempis Nifty Join Date: May 2005 Location: Japan Posts: 732	Theoretically... the airplane speed relative to the track would be zero, but if they were to have one hell of a (constant) gust of wind then it would be possibly to get off of the belt. The only way for that to happen, imo, would be to borrow a carrier from the US Navy and ask if they wouldn't mind doing a test, lol. It'll never happen, but if they had the conveyor-belt-thing on the flight deck of a carrier cutting into the wind at a fairly high rate of travel then wouldn't it be possibly to provide the right velocity of air traveling over the wing? /shrug __________________ Clothes make the man. Naked people have little or no influence on society. -Mark Twain

01-28-2008, 01:03 AM	#18235 (permalink)
FoghornDeadhorn Waiting for Diablo Join Date: Jan 2004 Location: Rolling down Rodeo with a shotgun Posts: 4,234	It's not hard to understand. Planes pull themselves through the air, there is no thrust being put through the wheels, and to be 100% frank about it, if the plane isn't moving through the air, which is what generates lift, then it's not moving, therefore the treadmill would not move. Therefore, for the treadmill to move at all, the plane would have to be moving in space, through air, and therefore generating lift. All that would happen is the wheels would spin twice as fast, because for any given air speed, the ground underneath is moving, spinning the wheels, twice as fast as normal. That is the reality, and their test with the tiny treadmill doesn't even allow that, so I'll be waiting to see exactly how they test with the real plane.

01-28-2008, 01:18 AM	#18238 (permalink)
Malakriss GOMTV Contest Winner Join Date: May 2002 Location: USA Posts: 3,842	I'm confused about what they're actually testing. Obviously if the plane's accelerating in the opposite direction of the conveyor belt and it remains in a fixed location, nothing will happen. Are they testing that, or if you have a long enough conveyor belt doing the work and moving the plane, it will generate enough lift for takeoff? Doesn't seem very practical, even if it does work it would only save the gas fuel required for takeoff and replace it with the electricity needed to power a gigantic conveyor runway. __________________

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