Jan 30 -- Mythbusters vs. Plane on a Treadmill (finally!) - Page 5 - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > General > General Discussion > Jan 30 -- Mythbusters vs. Plane on a Treadmill (finally!)

*VOTE NOW Help Metalcloak Giveaway an XJ Suspension*Premium LED Lighting by VISION X, Proudly sold at ROCKRIDGIntroducing MONSTALINER™ UV Permanent DIY Roll On Bed Line

Reply
Unread 01-22-2008, 10:50 AM   #61
Rollin
Registered User
2011 WK 
 
Join Date: Feb 2007
Location: NH
Posts: 1,229
Quote:
Originally Posted by dopod
But it IS producing resistance. Friction from the spinning wheels. Read post 17
Do you realize how little friction that is? What happens when you lift up one tire on an open axle. How easy is it to spin it? Now add thousands of pounds of thrust. Simple physics. How do seagulls fly into a landward breeze without moving forward or backward? Has to to with the air going over their wings and not how fast they are moving in relation to the ground.

__________________
2004 Jeep Grand Cherokee Freedom Edition

84k Miles


Imported from Detroit
Rollin is offline   Reply With Quote
Unread 01-22-2008, 10:52 AM   #62
Kyoseki
Inconceivable!
 
Kyoseki's Avatar
 
Join Date: Dec 2006
Location: A wretched hive of scum and villainy
Posts: 6,179
Quote:
Originally Posted by LandRover
Winner = Kyoseki for using the word 'ergo'.
I like the word ergo And thusly, but mostly ergo
Quote:
Originally Posted by dopod
Well I aways thought it was supposed to match the wheels. If it's supposed to match the speed of the plane than I agree with you.
In the classic question it's supposed to match the plane's forward speed, the last time it was asked on here, the poster said it had to match the wheel's forward speed, which is, as I say, an impossible situation.
__________________
Due to lack of interest, tomorrow has been canceled
Kyoseki is offline   Reply With Quote
Unread 01-22-2008, 10:58 AM   #63
jeepsarecool
Registered User
1982 CJ7 
 
Join Date: Jan 2003
Location: Alabama
Posts: 1,138
Quote:
Originally Posted by Kyoseki
In the classic question it's supposed to match the plane's forward speed, the last time it was asked on here, the poster said it had to match the wheel's forward speed, which is, as I say, an impossible situation.

Agreed. That's where the confusion comes in.

Belt matches planes speed = plane flies.
Belt matches rotational speed of wheels = no solution.
__________________
Check out my Art


CJ7 - God's gift to the masochist.
jeepsarecool is offline   Reply With Quote
Unread 01-22-2008, 11:00 AM   #64
TJgreg
Registered User
2005 TJ Wrangler 
 
Join Date: Jul 2005
Location: Quantico, VA
Posts: 1,472
Quote:
Originally Posted by red96jeep
but when that foward movement is cancled out by the runway moving in the oppsite direction at the same speed the plane will be at full throttle and producing thrust, but it will not be moveing anywhere. i
Prove why this will happen, then I will believe that the plane won't take off.


Think of this: An aero-static type of sea vessel, say a 'hover craft.' The craft is in contact with the water, however it is the propellers that propel the craft over the water. Even if there is a ridiculously strong current, the vessel will still move.

As for the friction, I agree that it will take SLIGHTLY more distance for the plane to take off due to the fraction more friction due to the treadmill.
__________________
Semper Fi
TJgreg is offline   Reply With Quote
Unread 01-22-2008, 11:02 AM   #65
Texan4life
Registered User
2004 LJ Wrangler 
 
Join Date: Mar 2005
Location: Red Oak, TX
Posts: 854
The planets must be aligning. We are all starting to agree.
__________________
Amendment 10 -
The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people.
Texan4life is offline   Reply With Quote
Unread 01-22-2008, 11:28 AM   #66
ucbandit10
Registered User
2005 TJ Wrangler 
 
Join Date: May 2007
Location: Cincinnati
Posts: 37
Quote:
LandRover:This has been explained so many times by so many people that the only way on planet earth that you could possibly not understand is if you are either too ignorant or stubborn to accept it. There is clearly no possible way that I could explain it in a way you will accept, and that's saying a lot. I teach special ed, for crying out loud.
I was actually explaining how it wouldnt takeoff. i know and accepted from the start that it wont it takeoff.
__________________
2005 Jeep Wrangler X
4.0L 6-speed
stock
ucbandit10 is offline   Reply With Quote
Unread 01-22-2008, 11:32 AM   #67
LandRover
Registered User
1998 XJ Cherokee 
 
Join Date: Feb 2005
Location: Your Head
Posts: 2,233
Quote:
Originally Posted by ucbandit10
I was actually explaining how it wouldnt takeoff. i know and accepted from the start that it wont it takeoff.
__________________
RHD '98 XJ
RE 3.5", Bushwaker Flat Flares,
OR-Fab bumpers, PowerTrax locker,
Sliders, Goodyear Duratrac 33's
LandRover is offline   Reply With Quote
Unread 01-22-2008, 11:39 AM   #68
Texan4life
Registered User
2004 LJ Wrangler 
 
Join Date: Mar 2005
Location: Red Oak, TX
Posts: 854
Quote:
Originally Posted by ucbandit10
I was actually explaining how it wouldnt takeoff. i know and accepted from the start that it wont it takeoff.
Could you explain it again more slowly, so we ignorant and stubborn people can understand?
__________________
Amendment 10 -
The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people.
Texan4life is offline   Reply With Quote
Unread 01-22-2008, 11:43 AM   #69
Kyoseki
Inconceivable!
 
Kyoseki's Avatar
 
Join Date: Dec 2006
Location: A wretched hive of scum and villainy
Posts: 6,179
Quote:
Originally Posted by TJ Tex
Could you explain it again more slowly, so we ignorant and stubborn people can understand?
Better yet, can he explain exactly which question he's answering?

It was never actually asked in this thread.
__________________
Due to lack of interest, tomorrow has been canceled
Kyoseki is offline   Reply With Quote
Unread 01-22-2008, 11:56 AM   #70
juiceparn
Registered User
2007 JK Wrangler 
 
Join Date: Jun 2007
Location: Quincy, IL
Posts: 733
I don't know who's tag it is but it goes "it's too bad stupidity isn't painful". I hope you retards who think ground speed and torque to the ground will keep the plane from flying don't reproduce. One of you *******es even compared it to a drag racer??????? HOLY ****! How did you figure out how to use the internet.
__________________
07 JK 4DR 3.5" Rubicon Express, C gussets, Front XHD stubby, winch, Taboo Customs rear bumper with tire carrier, Taboo Customs Rock sliders.
juiceparn is offline   Reply With Quote
Unread 01-22-2008, 12:07 PM   #71
1000000to1
Registered User
2000 WJ 
 
Join Date: Jan 2006
Location: Bienfait, Saskatchewan, Canada
Posts: 178
I can't believe how stupid people are, The wheels don't drive the plane the prop does, that belt can go as fast as it wants, it's not a factor. The wheels can be going 100 mph in reverse it don't matter.
__________________
If it doesn't have a motor I don't want to play with it!
Canadian Jeep Club Member #18
Black Jeep Club Member #2002
1000000to1 is offline   Reply With Quote
Unread 01-22-2008, 12:17 PM   #72
juiceparn
Registered User
2007 JK Wrangler 
 
Join Date: Jun 2007
Location: Quincy, IL
Posts: 733
So when it flies, I can't wait to hear the mentally challenged on here give an explanation as to why the experiment was wrong. They are same kind of dip****s that say" I'll be damned the dictionary is wrong too".
__________________
07 JK 4DR 3.5" Rubicon Express, C gussets, Front XHD stubby, winch, Taboo Customs rear bumper with tire carrier, Taboo Customs Rock sliders.
juiceparn is offline   Reply With Quote
Unread 01-22-2008, 12:32 PM   #73
Indy
Registered User
 
Join Date: Oct 2004
Location: WY
Posts: 2,818
Quote:
Originally Posted by juiceparn
I don't know who's tag it is but it goes "it's too bad stupidity isn't painful". I hope you retards who think ground speed and torque to the ground will keep the plane from flying don't reproduce. One of you *******es even compared it to a drag racer??????? HOLY ****! How did you figure out how to use the internet.
That's pretty unrealistic. Everyone knows stupid people reproduce at roughly a 4.1 or better ratio to smart people.
__________________
Odds are im typing on a tablet. It takes too much effort to add some punctuation. Im lazy, get over it

Never underestimate the power of stupid.
Indy is offline   Reply With Quote
Unread 01-22-2008, 12:36 PM   #74
Texan4life
Registered User
2004 LJ Wrangler 
 
Join Date: Mar 2005
Location: Red Oak, TX
Posts: 854
Quote:
Originally Posted by Indy
That's pretty unrealistic. Everyone knows stupid people reproduce at roughly a 4.1 or better ratio to smart people.

It's a good thing that 68.2% of all statistics are pulled from someone's rear. If it wasn't for Darwin thinning the herd, smart people would cease to exist.
__________________
Amendment 10 -
The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people.
Texan4life is offline   Reply With Quote
Unread 01-22-2008, 12:38 PM   #75
red96jeep
Registered User
 
Join Date: Aug 2005
Location: kent county/eastern shore maryland
Posts: 1,013
Quote:
Originally Posted by ucbandit10
the friction between the wheels and conveyor belt are negligable. spinning wheels have nothing to do with lift/air speed. Who care how fast the belt is moving because the plane is still staying in one spot( if it were to match the belt speed). The plane on the belt is only going to produce lift over the section of the wing that is right behind the propeller, which is not enought air to produce enough lift for takeoff. Why would engineers make wings 20+ ft long if the lift over a 5 ft span is enough to fly the thing?

thank you, someone understands
__________________
1996 jeep cherokee se 2 door
5 inch lift
rear ended= totaled
Rocky Mountain Edition Club member #4
project vehicle
new 2002 jetta 1.8t DD
red96jeep is offline   Reply With Quote
Reply
Thread Tools


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.