Will the Plane Take-Off - Merged with MythBusters Show Thread
10-22-2007, 03:43 PM
#521
Three Wheelin'
Originally Posted by JT Money
Good job converting. I used to think it wouldn't take off either. Notice how people switch from "not taking off" to "taking off" but not vice versa. . .
10-22-2007, 03:45 PM
#523
Benchwarmer
A human running on the treadmill and a plane's wheels spinning on the treadmill are a valid comparison if:
The human were able to fart with significant propulsion (say after a case of Keystone, a keg of chili, and a dozen jalapeno poppers) to push him forward.
The only purpose of wheels on a plane is keeping the belly from getting scraped.
The human were able to fart with significant propulsion (say after a case of Keystone, a keg of chili, and a dozen jalapeno poppers) to push him forward.
The only purpose of wheels on a plane is keeping the belly from getting scraped.
10-22-2007, 03:48 PM
#525
Go Giants
Originally Posted by JJ4Short
10-22-2007, 03:50 PM
#528
BTW I always said if the thrust was strong enough it would take off...wel now I know it is so therefore I was always right and you guys were always wrong...no arguing just listen and obey.
10-22-2007, 03:55 PM
#530
Senior Moderator
Originally Posted by JJ4Short
Hmm I am starting to rethink this...how powerful are jet engines at full thrust...someone get back to me on this...NO bets fuck you guys No bans either DOM rich Canadian bastard and by bastard I mean super great guy.
I think you've confused me with whiskers.
10-22-2007, 03:59 PM
#532
Go Giants
Originally Posted by dom
I think you've confused me with whiskers.
10-22-2007, 04:10 PM
#533
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5 fuckin pages since I went to pick up my loaner???!?!!?
WTF guys...where are we on this discussion? Are we still where we were, or do we all figure that the plane would not be moving relative to the air (only the treadmill), so it wouldn't get lift & wouldn't actually take off (rise into the air)?
WTF guys...where are we on this discussion? Are we still where we were, or do we all figure that the plane would not be moving relative to the air (only the treadmill), so it wouldn't get lift & wouldn't actually take off (rise into the air)?
10-22-2007, 04:11 PM
#534
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Originally Posted by revitupwriteitoff
5 fuckin pages since I went to pick up my loaner???!?!!?
WTF guys...where are we on this discussion? Are we still where we were, or do we all figure that the plane would not be moving relative to the air (only the treadmill), so it wouldn't get lift & wouldn't actually take off (rise into the air)?
WTF guys...where are we on this discussion? Are we still where we were, or do we all figure that the plane would not be moving relative to the air (only the treadmill), so it wouldn't get lift & wouldn't actually take off (rise into the air)?
10-22-2007, 04:14 PM
#535
Go Giants
Originally Posted by revitupwriteitoff
5 fuckin pages since I went to pick up my loaner???!?!!?
WTF guys...where are we on this discussion? Are we still where we were, or do we all figure that the plane would not be moving relative to the air (only the treadmill), so it wouldn't get lift & wouldn't actually take off (rise into the air)?
WTF guys...where are we on this discussion? Are we still where we were, or do we all figure that the plane would not be moving relative to the air (only the treadmill), so it wouldn't get lift & wouldn't actually take off (rise into the air)?
10-22-2007, 04:14 PM
#536
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so what...are we saying the plane is moving? the only way the plane actually takes off is 1) if it moves faster than the treadmill (which opposes the originial scenario, so that's out) or if the engines are no longer pushing the plane 100% horizontally & are now actually doing the work to push the plane into the air a la Harrier (sp?) jets
10-22-2007, 04:18 PM
#538
Go Giants
Originally Posted by revitupwriteitoff
so what...are we saying the plane is moving? the only way the plane actually takes off is 1) if it moves faster than the treadmill (which opposes the originial scenario, so that's out) or if the engines are no longer pushing the plane 100% horizontally & are now actually doing the work to push the plane into the air a la Harrier (sp?) jets
10-22-2007, 04:28 PM
#543
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Originally Posted by iwant1
BTW, rev, how many reps do I need to spread to return some to you?
Are you guys going to make me read the last 5 pages to figure out why I'm so damned funny? I'm still arguing that as long as this thing is kept as simple as the question, the 2 situations I gave earlier are the only two ways it will ever actually take off.
10-22-2007, 04:32 PM
#544
Originally Posted by revitupwriteitoff
lol...no idea - i think it's based on the number of people you give reps to. you have to give reps to 10-15 people before you can give more to the same person.
Are you guys going to make me read the last 5 pages to figure out why I'm so damned funny? I'm still arguing that as long as this thing is kept as simple as the question, the 2 situations I gave earlier are the only two ways it will ever actually take off.
Are you guys going to make me read the last 5 pages to figure out why I'm so damned funny? I'm still arguing that as long as this thing is kept as simple as the question, the 2 situations I gave earlier are the only two ways it will ever actually take off.
God I am sick of you people not realizing the friction of shoes are not the same as tires on a car when driving in the wind. First off wind has no bearing on air pressure under the wings therefore when its cold and the runway is slick and moving 1/3 the speed of the plane in a horizontal plain on the x-access the plane will take off. We talked about this the last 5 pages and no one listens.
Here's the math behind it
10-22-2007, 04:38 PM
#545
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Originally Posted by JJ4Short
God I am sick of you people not realizing the friction of shoes are not the same as tires on a car when driving in the wind. First off wind has no bearing on air pressure under the wings therefore when its cold and the runway is slick and moving 1/3 the speed of the plane in a horizontal plain on the x-access the plane will take off. We talked about this the last 5 pages and no one listens.
Here's the math behind it
10-22-2007, 04:40 PM
#546
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Originally Posted by revitupwriteitoff
lol...no idea - i think it's based on the number of people you give reps to. you have to give reps to 10-15 people before you can give more to the same person.
Are you guys going to make me read the last 5 pages to figure out why I'm so damned funny? I'm still arguing that as long as this thing is kept as simple as the question, the 2 situations I gave earlier are the only two ways it will ever actually take off.
Are you guys going to make me read the last 5 pages to figure out why I'm so damned funny? I'm still arguing that as long as this thing is kept as simple as the question, the 2 situations I gave earlier are the only two ways it will ever actually take off.
yeah probably... we've already proven that the plane will take off... happy reading :p
10-22-2007, 04:41 PM
#548
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Originally Posted by JJ4Short
God I am sick of you people not realizing the friction of shoes are not the same as tires on a car when driving in the wind. First off wind has no bearing on air pressure under the wings therefore when its cold and the runway is slick and moving 1/3 the speed of the plane in a horizontal plain on the x-access the plane will take off. We talked about this the last 5 pages and no one listens.
Here's the math behind it
Originally Posted by revitupwriteitoff
5 fuckin pages since I went to pick up my loaner???!?!!?
, but that the plane would stay on the runway, moving at the speed necessary to match that of the treadmill - under those circumstances, the plan would naturally never move forward or backward. I don't understand how the quadratic formula comes into play with a simple riddle.
10-22-2007, 04:48 PM
#551
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Originally Posted by cibs
HAHAHA JJ is just messing with you guys... nice work JJ y ou have them both going...
10-22-2007, 04:50 PM
#552
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Originally Posted by revitupwriteitoff
sorry, but neither me nor the plane were "going" anywhere
I think 19-21 are probably the best pages to read... maybe 18-21...
a bunch of comparisons and 'models' were discussed... as well as the usual banter...
I almost got $25 from JJ... until he converted
10-22-2007, 05:43 PM
#554
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Originally Posted by DanL
Here's one of the better Airplane vs. Treadmill Experiment Video out there...
10-22-2007, 06:13 PM
#556
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hahaha
what if you had a wind source infront of the plane... the treadmill effect will counter act the wind until the wind is > the treadmill speed thus creating lift?
im no bill nye so this will probably be disproved in about 10 min
what if you had a wind source infront of the plane... the treadmill effect will counter act the wind until the wind is > the treadmill speed thus creating lift?
im no bill nye so this will probably be disproved in about 10 min
10-22-2007, 08:11 PM
#557
Originally Posted by DanL
Here's one of the better Airplane vs. Treadmill Experiment Video out there...
10-22-2007, 08:31 PM
#558
The treadmill speed only affects the rotational speed of the wheels -- not the forward velocity of the plane. That's why no matter how fast the treadmill in the video is moving, the plane always moves forward at very close to the same velocity. What some people can't get their arms around is the fact that there is no direct correlation between the how fast the wheels rotate and the forward velocity of the plane. If the plane has enough thrust to push it forward at say, 100 feet/sec, it really doesn't matter if the wheels are turning at 1000 RPMs or 10,000 RPMS so the treadmill speed is irrelavant. The plane is going to move forward at 100 feet/sec.
10-22-2007, 08:34 PM
#559
Creepy guy in the mirror.
Originally Posted by KSuchdeve
That really doesn't work because it said the treadmill would match the speed of the plane as in speed up when the plane speeds up.
I seriously cannot believe that there are people out there who doubt the plane would take off... But I guess there are still people who think the earth is flat after all.
10-22-2007, 08:37 PM
#560
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what would happen if you were riding on an airplane & running on a treadmill facing the back of the plane at a speed double that of the plane moving through the air?