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Author Question for everybody
bradfincham
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Registered: 20th Sep 02
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23rd May 06 at 12:42   View User's Profile U2U Member Reply With Quote

Question:

If an aeroplane is taking off but is on a conveyor belt that is moving at the same speed as the plane, would the plane take off?

Just would like to see peoples responses



Its a question to get everyones minds thinking for once

[Edited on 23-05-2006 by bradfincham]
Pablo
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23rd May 06 at 12:43   View User's Profile U2U Member Reply With Quote

Depends if it was a Harrier or not
bradfincham
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23rd May 06 at 12:44   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Pablo
Depends if it was a Harrier or not


Nope its a Boeing 737 for example
willay
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23rd May 06 at 12:44   View Garage View User's Profile U2U Member Reply With Quote

from my limited knowledge of everything i'd say it wouldnt.
Brett
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23rd May 06 at 12:44   View Garage View User's Profile U2U Member Reply With Quote

no it wouldn't take off
C2RL R
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23rd May 06 at 12:45   View User's Profile U2U Member Reply With Quote

nope
Pablo
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23rd May 06 at 12:45   View User's Profile U2U Member Reply With Quote

Its nothing to do with the wheels as the wheels arent powered
Simon
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23rd May 06 at 12:46   View User's Profile U2U Member Reply With Quote

ive got no idea, are you planning on marketing this idea if it does would mean wouldnt need big runways, idea could get of the ground
Jules S
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23rd May 06 at 12:47   View Garage View User's Profile U2U Member Reply With Quote

This fcuking question has been posted on every forum I get on

And yes it will take off, can we leave it there please?
bradfincham
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23rd May 06 at 12:47   View User's Profile U2U Member Reply With Quote

The answer is that it would work

Clue - how does an aeroplane produce thrust?
Clue - how does an aeroplane acheive lift?

Jason Iles
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23rd May 06 at 12:48   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Jules S
This fcuking question has been posted on every forum I get on

And yes it will take off, can we leave it there please?


bradfincham
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23rd May 06 at 12:48   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Jules S
This fcuking question has been posted on every forum I get on

And yes it will take off, can we leave it there please?


I just want to see peoples opinions on here jules, stay out
Holly Olly
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23rd May 06 at 12:49   View User's Profile U2U Member Reply With Quote

No it wouldnt take off
JadeM
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23rd May 06 at 12:49   View Garage View User's Profile U2U Member Reply With Quote

Prove it pleeeeze
bradfincham
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23rd May 06 at 12:50   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Holly Olly
No it wouldnt take off


I just said that it would and gave some clues!

You must be blonde
Cybermonkey
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23rd May 06 at 12:50   View User's Profile U2U Member Reply With Quote

no it wouldnt
Jules S
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23rd May 06 at 12:50   View Garage View User's Profile U2U Member Reply With Quote

quote:
Originally posted by bradfincham
quote:
Originally posted by Jules S
This fcuking question has been posted on every forum I get on

And yes it will take off, can we leave it there please?


I just want to see peoples opinions on here jules, stay out


Paul_J
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23rd May 06 at 12:50   View User's Profile U2U Member Reply With Quote

It would only take off if it lifted off the conveyor - if it's stuck to the conveyer and hence forced backwards as hard as it is pushing and forwards and therefore stationary - then there would be no air going under the wings to produce the lift.

however if it's sitting on the conveyor and the engines are at full speed and it detaches from the conveyor at all it may get the speed then needed to lift off - hence the same way a plane can use its jet engines at full speed to pull up high into the sky at take off
gianluigi
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23rd May 06 at 12:50   View User's Profile U2U Member Reply With Quote

where's cybermonkey when you need him
Paul_J
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23rd May 06 at 12:52   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by gianluigi
where's cybermonkey when you need him


lol just what I thought Surely if just the engine's were enough to lift the plane without any actual movement forward (to get air under the wings) - then the plane should be able to sit on the run way, apply brakes and full thrust - release brakes and take off straight away. Which doesn't happen.
Cybermonkey
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23rd May 06 at 12:52   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Paul_J
It would only take off if it lifted off the conveyor - if it's stuck to the conveyer and hence forced backwards as hard as it is pushing and forwards and therefore stationary - then there would be no air going under the wings to produce the lift.

however if it's sitting on the conveyor and the engines are at full speed and it detaches from the conveyor at all it may get the speed then needed to lift off - hence the same way a plane can use its jet engines at full speed to pull up high into the sky at take off


what?? no mate. The aircraft is effectively stationary, it has no forward motion, there is no airflow over the wings, it cannot take off.
Paul_J
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23rd May 06 at 12:54   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Cybermonkey
quote:
Originally posted by Paul_J
It would only take off if it lifted off the conveyor - if it's stuck to the conveyer and hence forced backwards as hard as it is pushing and forwards and therefore stationary - then there would be no air going under the wings to produce the lift.

however if it's sitting on the conveyor and the engines are at full speed and it detaches from the conveyor at all it may get the speed then needed to lift off - hence the same way a plane can use its jet engines at full speed to pull up high into the sky at take off


what?? no mate. The aircraft is effectively stationary, it has no forward motion, there is no airflow over the wings, it cannot take off.


yeh that's what I then said lower down on my next reply.
Cybermonkey
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23rd May 06 at 12:54   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Paul_J
quote:
Originally posted by gianluigi
where's cybermonkey when you need him


lol just what I thought Surely if just the engine's were enough to lift the plane without any actual movement forward (to get air under the wings) - then the plane should be able to sit on the run way, apply brakes and full thrust - release brakes and take off straight away. Which doesn't happen.


FLMAO the engines only provide forward motion. even at full power, if the conveyor belt is negating the forward movement, the aircraft is stationary. an aircraft ONLY flies when it has a pressure difference between the upper and lower wing great enough to produce lift. Bernoullis principle
Jules S
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23rd May 06 at 12:55   View Garage View User's Profile U2U Member Reply With Quote



Of course it will take off

It has jet engines ffs, the engines produce thrust through the air not the conveyor belt.

The contact between the wheels and road is irrelevant
Paul_J
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23rd May 06 at 12:56   View User's Profile U2U Member Reply With Quote

I see what jules is saying - the plane would still move forward?

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