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Plane

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Eesat 90210 said:
Lol of course.
But that is exactly what the scenario says.
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Hence my post 101.

The bigger question to the OP is that is this actually physically possible?

The only way I can see the speed of conveyor belt and wheels moving at same speed is if they are both stationary at 0mph.

As soon as the pilot uses the engines to thrust forward, the plane is going to go forward. The conveyor belt might be programmed to match the wheels, but as it speeds up, wheels will always speed up faster. Like chasing your tail, and conveyor belt will never be able to catch up.

What can't happen though is the pilot sticks engine on for thrust, and the plane will just sit stationary on runway conveyor belt. Of course, OP never mentioned the engine, wonder if that was conveniently left out of the teaser on purpose
 
Swango1980 said:
Hence my post 101.

The bigger question to the OP is that is this actually physically possible?

The only way I can see the speed of conveyor belt and wheels moving at same speed is if they are both stationary at 0mph.

As soon as the pilot uses the engines to thrust forward, the plane is going to go forward. The conveyor belt might be programmed to match the wheels, but as it speeds up, wheels will always speed up faster. Like chasing your tail, and conveyor belt will never be able to catch up.

What can't happen though is the pilot sticks engine on for thrust, and the plane will just sit stationary on runway conveyor belt. Of course, OP never mentioned the engine, wonder if that was conveniently left out of the teaser on purpose
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Good lord :ROFLMAO:
 
Neilds said:
Please explain in simple terms, how air is moving across the wings to provide lift? The plane will be stationary, in relation to the ground, as any forward motion (caused by the engines thrust) is counteracted by the reverse action of the treadmill- as stated in the original post.
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The jets , which interact with the air as opposed to treadmills.
 
hambugerpete said:
The engines give it thrust to move through the air not along the ground. Im amazed more don't see how obvious this is.
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OK come on, when someone calls you out for having a wind up it's the unwritten rule that you have to own up, right? :LOL:
 
Eesat 90210 said:
OK come on, when someone calls you out for having a wind up it's the unwritten rule that you have to own up, right? :LOL:
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Who's on a wind up? It's a popular internet myth and I thought I'd ask it here. Mythbusters did an episode about it.
 
Better question. Deloreon in Back to the Future gets its speedometer to 88mph. But, it is on a treadmill going 88mph in opposite direction.

In this case, it is clearly 0mph relative to air, as the wheels are used to move it forwards.

But, will it be able to travel in time? Not sure, as I don't know the physics that allowed time travel, was it the speed of the wheels or the speed through air? :ROFLMAO:
 
Neilds said:
But that thrust is cancelled by the treadmill so the plane doesn’t move
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No it isn't, that's the point. Why would it be, sure the wheels would spin quicker but not much else
 
hambugerpete said:
Sorry you'll have to explain that one, obviously I'm not the only person in the world who knows the plane takes off.
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It's been explained loads of times but you don't want to understand how ludicrous your posts are.
 
Eesat 90210 said:
It's been explained loads of times but you don't want to understand how ludicrous your posts are.
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Ludicrous how ? Because you don't understand it then it's ludicrous?
You know I didn't come up with this don't you?
 
hambugerpete said:
The jets , which interact with the air as opposed to treadmills.
Click to expand...
A 747 needs to be moving through the air at 180mph to maintain altitude (at sea level).
When it's on the conveyor belt its airspeed is zero, however much air is being sucked through the jet engines. It can't instantaneously accelerate to 180mph as it leaves the ground.
 
The plane has speed...the thrust from the engines provides it.
The wheels enable the plane to convert that thrust into speed
But the plane has no forward motion due to the conveyor running at the same speed.
So the plane may be doing 500 mph but its not actually moving from its original spot
Without forward motion the will be no airflow over the wings and therefore no lift.
Unless everything that's ever be said about aerodynamics is a complete falsehood the plane can't take off.
Someone could climb a ladder and hand the Pilot a beer because the plane isn't moving from it's original location...it may be doing 500mph but it isn't travelling 500 miles in an hour.
 
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