Answer this question...
nelson rules
Joined: Sep 2001
Posts: 36,124
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From: the best coast
Originally Posted by Highmile
That is exactly right. :hi5:
The guy with the pilot friend needs to remind his friend that he is only a pilot and NOT an engineer! If he is an engineer, he's not a smart one. My dad IS an engineer and I argued with him for 30 minutes before I got him to agree with me. (I guess I'm the rocket scientist?)
The guy that said the tires would burn up is overanalyzing too. Even if you aren't overanalyzing, there are planes that take off well under 200mph and there are tires that are rated well over twice that. This is a really simple problem and the plane wont stay still. The problem is written to make you believe that it would. Did you read my examples with the rocket above? I think I explained really well why the plane would fly. I'm really disappointed in the people who think it won't.
For the THIRD TIME, I'll repaste the problem so you can read it...
"A plane is standing on runway that can move (some sort of band conveyer). The plane moves in one direction, while the conveyer moves in the opposite direction. This conveyer has a control system that tracks the plane speed and tunes the speed of the conveyer to be exactly the same (but in opposite direction).
The question is:
Will the plane take off or not? Will it be able to run up and take off?"
NOWHERE does the problem say that the plane will stay in one place! The problem asks you to decide if it will stay in one place!!
Once again... I'm very disapointed in the people who think the plane won't fly. And to think, you are the same guys I ask for help to fix my car. :slap:
The guy with the pilot friend needs to remind his friend that he is only a pilot and NOT an engineer! If he is an engineer, he's not a smart one. My dad IS an engineer and I argued with him for 30 minutes before I got him to agree with me. (I guess I'm the rocket scientist?)
The guy that said the tires would burn up is overanalyzing too. Even if you aren't overanalyzing, there are planes that take off well under 200mph and there are tires that are rated well over twice that. This is a really simple problem and the plane wont stay still. The problem is written to make you believe that it would. Did you read my examples with the rocket above? I think I explained really well why the plane would fly. I'm really disappointed in the people who think it won't.
For the THIRD TIME, I'll repaste the problem so you can read it...
"A plane is standing on runway that can move (some sort of band conveyer). The plane moves in one direction, while the conveyer moves in the opposite direction. This conveyer has a control system that tracks the plane speed and tunes the speed of the conveyer to be exactly the same (but in opposite direction).
The question is:
Will the plane take off or not? Will it be able to run up and take off?"
NOWHERE does the problem say that the plane will stay in one place! The problem asks you to decide if it will stay in one place!!
Once again... I'm very disapointed in the people who think the plane won't fly. And to think, you are the same guys I ask for help to fix my car. :slap:
i dont know how he can be not a smart engineer when he works at lockheed martin :eh: ...i'd be scared about our defense if they hired stupid engineers
h:
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From: Montréal, Canada
Originally Posted by Highmile
Why would you say that the guy with the correct answer is stupid?
Have you ever flown in a plane before? Do you remember how the plane throws you back in the seat at take off? Even with a full load of dumb asses and thier luggage on board? Don't you think all that power could make the wheels turn faster than the runway is pushing and take off? Sit calmly and read my arguments (the two long ones) and read the problem.
Have you ever been on a people mover (one of those flat escalators like at the airport)? Lets say you are walking againts it and you are holding a cannon. Fire the cannon behind you and I guarantee it'll knock you on your face.
The engines that suck air from in front of the plane and push it behind the plane don't really give a crap about its wheel speed.
Have you ever flown in a plane before? Do you remember how the plane throws you back in the seat at take off? Even with a full load of dumb asses and thier luggage on board? Don't you think all that power could make the wheels turn faster than the runway is pushing and take off? Sit calmly and read my arguments (the two long ones) and read the problem.
Have you ever been on a people mover (one of those flat escalators like at the airport)? Lets say you are walking againts it and you are holding a cannon. Fire the cannon behind you and I guarantee it'll knock you on your face.
The engines that suck air from in front of the plane and push it behind the plane don't really give a crap about its wheel speed.
bow down to king puffy
Joined: Jun 2002
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Originally Posted by joebenz
my friend is the engineer...his dad is a pilot.
i dont know how he can be not a smart engineer when he works at lockheed martin :eh: ...i'd be scared about our defense if they hired stupid engineersh:
i dont know how he can be not a smart engineer when he works at lockheed martin :eh: ...i'd be scared about our defense if they hired stupid engineers
h:
Push to shock!
Joined: Sep 2002
Posts: 4,583
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From: Palo Alto, CA
Originally Posted by joebenz
my friend is the engineer...his dad is a pilot.
i dont know how he can be not a smart engineer when he works at lockheed martin :eh: ...i'd be scared about our defense if they hired stupid engineersh:
i dont know how he can be not a smart engineer when he works at lockheed martin :eh: ...i'd be scared about our defense if they hired stupid engineers
h:h:
bow down to king puffy
Joined: Jun 2002
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Originally Posted by HawtPants
the wheels spinning have nothing to do with a plane taking off. the plane has tp move forward. think about planes that land in water
Floppy Death! noES!!!
Joined: Oct 2002
Posts: 21,218
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From: Scranton, PA
maybe if I help explain it in 2 parts.
1st. Lets look at the wheels and the conveyor. As the plane moves forward the conveyor moves backwards. Thus negating any movement the plane makes. So if the plane moves or not, the wheels do, esentally nothing.
2nd. With the wheels doing nothing, all we have left to look at is the planes engines making thrust. They do that just fine because they push off the air, not the runway. So with the wheels doing nothing, or something (it doesn't matter) it will still move forward and thus be able to take off.
1st. Lets look at the wheels and the conveyor. As the plane moves forward the conveyor moves backwards. Thus negating any movement the plane makes. So if the plane moves or not, the wheels do, esentally nothing.
2nd. With the wheels doing nothing, all we have left to look at is the planes engines making thrust. They do that just fine because they push off the air, not the runway. So with the wheels doing nothing, or something (it doesn't matter) it will still move forward and thus be able to take off.
Senior Member
Joined: Jun 2004
Posts: 30,331
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From: Montréal, Canada
Originally Posted by clickwir
maybe if I help explain it in 2 parts.
1st. Lets look at the wheels and the conveyor. As the plane moves forward the conveyor moves backwards. Thus negating any movement the plane makes. So if the plane moves or not, the wheels do, esentally nothing.
2nd. With the wheels doing nothing, all we have left to look at is the planes engines making thrust. They do that just fine because they push off the air, not the runway. So with the wheels doing nothing, or something (it doesn't matter) it will still move forward and thus be able to take off.
1st. Lets look at the wheels and the conveyor. As the plane moves forward the conveyor moves backwards. Thus negating any movement the plane makes. So if the plane moves or not, the wheels do, esentally nothing.
2nd. With the wheels doing nothing, all we have left to look at is the planes engines making thrust. They do that just fine because they push off the air, not the runway. So with the wheels doing nothing, or something (it doesn't matter) it will still move forward and thus be able to take off.
VX Hatch with 431,500!
Joined: Sep 2005
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From: Missouri
Originally Posted by Tark
naw dude... Highmile
Have you ever flown in a plane before? Do you remember how the plane throws you back in the seat at take off? Even with a full load of people and thier luggage on board plus full gas tanks? Don't you think all that power could make the wheels turn faster than the runway is pushing fruitlessly against if, and take off? Sit calmly and read my arguments (the two long ones) and read the problem. I believe with all my heart that the plane will take off, If it was unloaded and had minimum fuel on board, it would take off even faster.