Will the plane take off? v. Mythbusters!!! (VIDEO on Page 38)

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10-24-2007, 02:05 PM
man

Quote:

Originally Posted by LS2_KID

yep they will both be moving, but not distance wise..

side note: i got a gas mask with a tube connected to it and its the ****, if u know what im sayin :goodjob:

LOL, nice

But back on topic. Speed of a plane is based on moving air, therefore the plane would have to be moving for the treadmill to move.
10-24-2007, 02:05 PM
Ruiner

Quote:

Originally Posted by d993s

Ok, so then the plane will have to at least DOUBLE its power output, right? (Since the only speed that matters is the speed relative to the ground, which is the only way that air will pass under its wings fast enough to create lift).
Now I'm not sure how much throttle a plane requires for lift-off, but I assume somewhere around 80% or more..........

No, the same output. All the treadmill will do is spin the wheels (which are already free-spinnig) faster.
10-24-2007, 02:06 PM
Ruiner

Quote:

Originally Posted by fcman

LOL, nice

But back on topic. Speed of a plane is based on moving air, therefore the plane would have to be moving for the treadmill to move.

Exactly...
10-24-2007, 02:07 PM
On_Her_Face

yes and that is why i believe it wont take off
10-24-2007, 02:08 PM
speedminded

Quote:

Originally Posted by d993s

Ok, so then the plane will have to at least DOUBLE its power output, right? (Since the only speed that matters is the speed relative to the ground, which is the only way that air will pass under its wings fast enough to create lift).
Now I'm not sure how much throttle a plane requires for lift-off, but I assume somewhere around 80% or more..........

Negative, no power increase at all is needed because the wheels are FREE SPINNING....

If the plane is moving forward at 50mph then the treadmill is moving backwards at 50mph....if the plane is going 50mph then the plane is still MOVING forward, as in not stationary. The only differance between a plane going 50mph on a runway and a plane going 50mph on a treadmill is the speed the wheels are spinning....it will be 50+50=100mph. THe plane is still moving forward at 50mph but its wheels are spinning at 100mph.
10-24-2007, 02:09 PM
Ruiner

Quote:

Originally Posted by LS2_KID

yes and that is why i believe it wont take off

Let's see if I can explain this further...

- You agree that a plane's engines PUSH on the air and that moves a plane forward, yes?
- That the wheels do not power the plane, right?
- The wheels are ONLY there to reduce the friction with the ground, yes?
- That the wheels are free spinning, right?

Do you agree with all of these?
10-24-2007, 02:09 PM
On_Her_Face

Quote:

Originally Posted by fcman

LOL, nice

But back on topic. Speed of a plane is based on moving air, therefore the plane would have to be moving for the treadmill to move.

ok i do not think it is going to take off and this is why, you are running on a treadmill (yes i know a plane is not powered at the wheels) but lets just say im going on a treadmill with my jet powered farts.. there is no wind blowing in my face and im not moving (distance wise) there for no wind in my face so i can not take off (using my arms as wings)

just my prediction, no need to be hostile fellow IAers
10-24-2007, 02:12 PM
man

Quote:

Originally Posted by LS2_KID

ok i do not think it is going to take off and this is why, you are running on a treadmill (yes i know a plane is not powered at the wheels) but lets just say im going on a treadmill with my jet powered farts.. there is no wind blowing in my face and im not moving (distance wise) there for no wind in my face so i can not take off (using my arms as wings)

just my prediction, no need to be hostile fellow IAers

That almost works but instead of running, imagine you are on a skateboard.
10-24-2007, 02:12 PM
speedminded

Quote:

Originally Posted by LS2_KID

ok i do not think it is going to take off and this is why, you are running on a treadmill (yes i know a plane is not powered at the wheels) but lets just say im going on a treadmill with my jet powered farts.. there is no wind blowing in my face and im not moving (distance wise) there for no wind in my face so i can not take off (using my arms as wings)

just my prediction, no need to be hostile fellow IAers

You are powered by your legs that are in direct contact with the ground. If you were on rollerblades then the scenario would be the same.
10-24-2007, 02:12 PM
Ruiner

I want to know if he agrees with my statements...
10-24-2007, 02:13 PM
speedminded

Quote:

Originally Posted by fcman

That almost works but instead of running, imagine you are on a skateboard.

or on a skateboard :tongue:
10-24-2007, 02:13 PM
On_Her_Face

Quote:

Originally Posted by speedminded

You are powered by your legs that are in direct contact with the ground. If you were on rollerblades then the scenario would be the same.

re-read my post lol.. im said lets say im not powered by my legs
10-24-2007, 02:14 PM
On_Her_Face

Quote:

Originally Posted by Ruiner

I want to know if he agrees with my statements...

which one(s)
10-24-2007, 02:15 PM
Ruiner

Look up about 6 or 7 posts. All 4 statements...

Quote:

Originally Posted by LS2_KID

which one(s)
10-24-2007, 02:16 PM
man

Quote:

Originally Posted by LS2_KID

re-read my post lol.. im said lets say im not powered by my legs

but your feet would be a huge friction point on the treadmill. Your feet would be the reason you wouldn't move forward.
10-24-2007, 02:17 PM
On_Her_Face

Quote:

Originally Posted by fcman

but your feet would be a huge friction point on the treadmill. Your feet would be the reason you wouldn't move forward.

pretend, jet powered bicycle then.. lol
10-24-2007, 02:18 PM
man

Quote:

Originally Posted by LS2_KID

pretend, jet powered bicycle then.. lol

sure, as long as you take the chain and pedals off.
10-24-2007, 02:18 PM
On_Her_Face

Quote:

Originally Posted by Ruiner

Let's see if I can explain this further...

- You agree that a plane's engines PUSH on the air and that moves a plane forward, yes?
- That the wheels do not power the plane, right?
- The wheels are ONLY there to reduce the friction with the ground, yes?
- That the wheels are free spinning, right?

Do you agree with all of these?

yes sir
10-24-2007, 02:19 PM
VooDooXII

The only reason the plane would stay in place is if the wind was also pushing against the plane with the same force that the thrust is pushing it forward...but in that case, the plane would lift off anyway.
10-24-2007, 02:20 PM
On_Her_Face

well i wish this show would come on earlier lol
10-24-2007, 02:21 PM
speedminded

Quote:

Originally Posted by LS2_KID

pretend, jet powered bicycle then.. lol

anything that has free spinning wheels...could be a shopping cart...doesn't matter.
10-24-2007, 02:21 PM
d993s

Ok then, since more facts are made clear (the length of the treadmill is the same length as the runway) then the plane WILL take off.
Not having all the facts from the beginning will usually draw a wrong conclusion.
10-24-2007, 02:23 PM
Ruiner

Quote:

Originally Posted by LS2_KID

yes sir

Okay, with that said, take out a matchbox car with free spinning wheels. ****, any little car if you have one.

Now, take out a piece of paper and put the car on the paper. The paper will act like the treadmill. Hold onto the car and slowly push it forward...keep your hand on the car. Your hand is like the jet engine that is "pushing" the plane through the air.

Now, while pushing the car foward, pull the paper back at the same speed. Now, pull the paper back FASTER than you are pushing the car forward.

Do you need to push the car any harder? Nope. All that happens when you pull the paper back is that the wheels spin faster. Nothing more. The paper doesn't stop the car form moving forward.

****, push the car and release it while also pulling the paper back. The car will STILL move forward at the same speed that you pushed it.

THAT is why the plane will move forward...
10-24-2007, 02:24 PM
speedminded

Quote:

Originally Posted by d993s

Ok then, since more facts are made clear (the length of the treadmill is the same length as the runway) then the plane WILL take off.
Not having all the facts from the beggining will usually draw a wrong conclusion.

I have said that at least 6 times, directly quoting you OVER AND OVER AGAIN. I told you it is as long as the plane needs to take off, i've said it's at least 3,000 feet long, i've told you it IS NOT 5' long like a treadmill you see in a gym...
10-24-2007, 02:24 PM
d993s

Quote:

Originally Posted by speedminded

I have said that at least 6 times, directly quoting you OVER AND OVER AGAIN. I told you its as long as the plane needs to take off, i've said it's at least 3,000 feet long, i've told you it IS NOT 5' long like a treadmill you see in a gym...

Well somehow I missed it.
10-24-2007, 02:26 PM
speedminded

Quote:

Originally Posted by d993s

Well somehow I missed it.

Would you like the post number of said quotes, even the ones you've quoted me back on?
10-24-2007, 02:26 PM
On_Her_Face

Quote:

Originally Posted by Ruiner

Okay, with that said, take out a matchbox car with free spinning wheels. ****, any little car if you have one.

Now, take out a piece of paper and put the car on the paper. The paper will act like the treadmill. Hold onto the car and slowly push it forward...keep your hand on the car. Your hand is like the jet engine that is "pushing" the plane through the air.

Now, while pushing the car foward, pull the paper back at the same speed. Now, pull the paper back FASTER than you are pushing the car forward.

Do you need to push the car any harder? Nope. All that happens when you pull the paper back is that the wheels spin faster. Nothing more. The paper doesn't stop the car form moving forward.

****, push the car and release it while also pulling the paper back. The car will STILL move forward at the same speed that you pushed it.

THAT is why the plane will move forward...

well slap my ass, and call me beth.

they are still gonna **** up and it wont take off.. i guess i see it now

ends the fun in this thread
10-24-2007, 02:28 PM
d993s

Quote:

Originally Posted by speedminded

Would you like the post number of said quotes, even the ones you've quoted me back on?

I obviously overlooked that fact (for some reason, don't know why) which caused me to insist on why it wouldn't work.
10-24-2007, 02:29 PM
Ruiner

Quote:

Originally Posted by LS2_KID

well slap my ass, and call me beth.

they are still gonna **** up and it wont take off.. i guess i see it now

ends the fun in this thread

Okay, Beth.

Hint - Trust me, it will take off on the show.
10-24-2007, 02:29 PM
Ruiner

Quote:

Originally Posted by d993s

I obviously overlooked that fact (for some reason, don't know why) which caused me to insist on why it wouldn't work.

As long as you came around now, that's all that matters. :):goodjob:
10-24-2007, 02:30 PM
speedminded

Quote:

Originally Posted by d993s

I obviously overlooked that fact (for some reason, don't know why) which caused me to insist on why it wouldn't work.

If that was the case then the plane would simply taxi off the front of the treadmill and continue about its normal business until it got enough speed to take off.
10-24-2007, 02:30 PM
d993s

Quote:

Originally Posted by Ruiner

Okay, Beth.

Hint - Trust me, it will take off on the show.

We can't trust you. You first have to learn more about Porsches. :D
10-24-2007, 02:31 PM
On_Her_Face

god damnit school time.. this thread sucks now thanks ruiner :( lol
10-24-2007, 02:36 PM
Ruiner

Quote:

Originally Posted by d993s

We can't trust you. You first have to learn more about Porsches. :D

Joking, right? What did I mess up on? :???:
10-24-2007, 02:37 PM
Ruiner

Quote:

Originally Posted by LS2_KID

god damnit school time.. this thread sucks now thanks ruiner :( lol

Sorry.

You can also try to pull your rolling suitcase on one of those "moving walkways" at the airport and experience the same effect.
10-24-2007, 02:47 PM
d993s

Quote:

Originally Posted by Ruiner

Joking, right? What did I mess up on? :???:

You didn't really mess up, but you seemed clueless about specifics didn't have any answers about the mods (if any) on your 996TT back in the day at the Varsity. It's ok though, you can always pass it off as "not wanting to disclose info on mods". ;)
10-24-2007, 02:52 PM
Ruiner

Quote:

Originally Posted by d993s

You didn't really mess up, but you seemed clueless about specifics didn't have any answers about the mods (if any) on your 996TT back in the day at the Varsity. It's ok though, you can always pass it off as "not wanting to disclose info on mods". ;)

I HONESTLY believe that you could not have been talking to me. There WERE some Porsche chip guys that were there many times that had little clue. Maybe it was them.

I can assure you that I knew exactly about the mods, their gains, the upgrade paths, etc since I first bought the car. Remember, I did all of my own work on my previous turbo, the 3000GT VR-4. I make it a point to know everything about my car.

Hell, I installed almost all of my mods. You must have me confused with someone else.
10-24-2007, 02:54 PM
d993s

Quote:

Originally Posted by Ruiner

I HONESTLY believe that you could not have been talking to me. There WERE some Porsche chip guys that were there many times that had little clue. Maybe it was them.

I can assure you that I knew exactly about the mods, their gains, the upgrade paths, etc since I first bought the car. Remember, I did all of my own work on my previous turbo, the 3000GT VR-4. I make it a point to know everything about my car.

Hell, I installed almost all of my mods. You must have me confused with someone else.

Maybe. You must have had a friend with a blonde GF that drove your car that night. I guess it's possible.
10-24-2007, 02:56 PM
d993s

What's a "Porsche chip guy"?
10-24-2007, 02:59 PM
speedminded

Quote:

Originally Posted by d993s

Maybe. You must have had a friend with a blonde GF that drove your car that night. I guess it's possible.

That was me, i took his girl and the TT out but he doesn't know...until now, thanks man. Sorry i don't know much about watercooled Porsches except how to drive the **** out of both of them.

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