MythBusters

[oiprocs]

This revelation could destroy the intarwebz as we know it.

Either way, no matter what happens, millions will flock online to some forum to post about it.

The crash is inevitable. We're doomed. Now I'll never find the secret lifer room.

 

[jagec]

Originally posted by: Jeff7
I'm curious to see how they define the problem.

Do the wheel bearings have friction?
Do the wheels have mass, and thus rotational inertia?
Is the speed of the wheels a function of the rotational speed of the engines, or of the velocity of the body of the airplane?

Many things can contribute to this.

There is only one way to define the problem with real-life equipment, and in that definition the plane will take off.

All real wheel bearings have friction. All real wheels have mass. No real airplanes have wheel speed dependent on engine speed.

Originally posted by: PHiuR

Originally posted by: FoBoT
that is what i mean, they have to know/figure out that the length of the treadmill has to be => the normal take off distance of the airplane they are using

if the airplane needs 200 ft of runway to take off normally, then they need a 210 ft treadmill

if the treadmill is spinning then shouldn't they only need enough belt to cover the wheels? i want to see the plane take off then. haha

No, he's right. The plane CAN NOT take off in place...this seems to be the chief confusion.

But I really don't want to start this again, so I just refer you back to the old thread. Happy reading!

 

[ultimatebob]

See what happened to that remote control boat in this week's episode? THAT is what's going to happen to your stinkin' airplane on a treadmill

 

[Nyati13]

Originally posted by: ultimatebob
See what happened to that remote control boat in this week's episode? THAT is what's going to happen to your stinkin' airplane on a treadmill

Yes, the boat took off.......




Didn't land very gracefully, but it sure did take off.....

 

[sdifox]

stop it. plane is not propelled by wheels. treadmill instead of ground makes no difference!

 

[jandrews]

Originally posted by: sdifox
stop it. plane is not propelled by wheels. treadmill instead of ground makes no difference!

dammit what about the lift provided by the air going under the wings? The engines arent the only factor in this experiment. If a plane did not have wings to help with lift it would never take off.

 

[sdifox]

Originally posted by: jandrews

Originally posted by: sdifox
stop it. plane is not propelled by wheels. treadmill instead of ground makes no difference!

dammit what about the lift provided by the air going under the wings? The engines arent the only factor in this experiment. If a plane did not have wings to help with lift it would never take off.

if an airplane doesn't have wings, it is not an airplane. Helicopters are considered to be rotary wing.

http://en.wikipedia.org/wiki/Rotary_wing


edited to add wiki article

 

[ElFenix]

Originally posted by: FoBoT
that is what i mean, they have to know/figure out that the length of the treadmill has to be => the normal take off distance of the airplane they are using

if the airplane needs 200 ft of runway to take off normally, then they need a 210 ft treadmill

all they really need is a treadmill going faster than the plane's takeoff speed. if the plane moves forward on it, the plane will eventually take off.

 

[everman]

Whether or not the plane takes off, I'm sure something is going to blow up.

 

[dainthomas]

Every time someone says the plane doesn't take off, God kills a kitten.

 

[videogames101]

we finally discover that it doesn't take off!

 

[SKORPI0]

So why don't airports have these giant treadmills instead of runways? Or even aircraft carriers, no need for a catapult.

Watching the MythBusters James Bond episode in HD.

 

[newmachineoverlord]

They would have to do it in a vacuum chamber to meet the conditions specified by the post here with pollage, which specified that there would be "no airflow to the lift generating parts of the plane."

 

[marvdmartian]

Originally posted by: SKORPI0
So why don't airports have these giant treadmills instead of runways? Or even aircraft carriers, no need for a catapult.

Watching the MythBusters James Bond episode in HD.

What? You didn't know about the treadmills on our aircraft carriers????? :shocked:

Oh, wait......N/M!! I wasn't supposed to say anything! Forget I said anything about that thing......that I never mentioned!!!

 

[Jeff7]

Originally posted by: jagec

Originally posted by: Jeff7
I'm curious to see how they define the problem.

Do the wheel bearings have friction?
Do the wheels have mass, and thus rotational inertia?
Is the speed of the wheels a function of the rotational speed of the engines, or of the velocity of the body of the airplane?

Many things can contribute to this.

There is only one way to define the problem with real-life equipment, and in that definition the plane will take off.

All real wheel bearings have friction. All real wheels have mass. No real airplanes have wheel speed dependent on engine speed.

Aw, but reality suuuuuucks.

Originally posted by: everman
Whether or not the plane takes off, I'm sure something is going to blow up.

Indeed. And that's all that really matters, isn't it?

Originally posted by: marvdmartian
What? You didn't know about the treadmills on our aircraft carriers????? :shocked:

Oh, wait......N/M!! I wasn't supposed to say anything! Forget I said anything about that thing......that I never mentioned!!!

QFDC!!!
(Quoted for De-Classification) :laugh:

 

[Krazy4Real]

omg I gotta remember to dvr this.

 

[BudAshes]

I'm glad we can now all agree that the plane won't take off... as long as treadmill is going so fast it rips the landing gear off the airplane.

 

[HydroSqueegee]

who in their right mind would think the plane takes off?

 

[91TTZ]

Some planes would not take off if they were on a treadmill. I can provide a picture if you're curious.

 

[ConstipatedVigilante]

Originally posted by: FoBoT
that is what i mean, they have to know/figure out that the length of the treadmill has to be => the normal take off distance of the airplane they are using

if the airplane needs 200 ft of runway to take off normally, then they need a 210 ft treadmill

?

I always thought the myth was that the plane would/would not take off from a conveyor belt that keeps it in place. So it would just have to be big enough to have the plane on it. If the plane's allowed to move forward on a large belt, then of course it takes off. But if it's staying in place (ie, speed of the plane cancels that of the treadmill), then it doesn't, due to a lack of lift.

 

[jagec]

Originally posted by: newmachineoverlord
They would have to do it in a vacuum chamber to meet the conditions specified by the post here with pollage, which specified that there would be "no airflow to the lift generating parts of the plane."

Where did you get THAT idea?

 

[CorCentral]

Originally posted by: HydroSqueegee
who in their right mind would think the plane takes off?

You are joking right? Surely you are.

Here's a simple Test that was done on You Tube. Nothing fancy, but it shows what you need to see. The guy in the video even makes a reference to MythBusters. If you don't believe him, watch the Mythbuster's episode coming up he says.

 

[BlackTigers]

Originally posted by: CorCentral

Originally posted by: HydroSqueegee
who in their right mind would think the plane takes off?

You are joking right? Surely you are.

Here's a simple Test that was done on You Tube. Nothing fancy, but it shows what you need to see. The guy in the video even makes a reference to MythBusters. If you don't believe him, watch the Mythbuster's episode coming up he says.

Thanks for the link, that was cool.

 

[Throckmorton]

Originally posted by: CorCentral

Originally posted by: HydroSqueegee
who in their right mind would think the plane takes off?

You are joking right? Surely you are.

Here's a simple Test that was done on You Tube. Nothing fancy, but it shows what you need to see. The guy in the video even makes a reference to MythBusters. If you don't believe him, watch the Mythbuster's episode coming up he says.

I'm suspicious about Mythbusters. They sometimes mess up severely... Like when Adam tried to make a concrete plane from scratch but the front edge of the wings were vertical. How is that supposed to fly?

 

[91TTZ]

Originally posted by: CorCentral

Originally posted by: HydroSqueegee
who in their right mind would think the plane takes off?

You are joking right? Surely you are.

Here's a simple Test that was done on You Tube. Nothing fancy, but it shows what you need to see. The guy in the video even makes a reference to MythBusters. If you don't believe him, watch the Mythbuster's episode coming up he says.

That guy talks WAYYYYY too damn much. He just won't shut up.