Plane

[sunshine]

If the conveyor moves forward.
First of all it is not moving at all because the plane's wheels are not moving - the conveyor is matching the zero speed.
The plane's engines engage to overcome friction and the plane starts to move forwards.
The plane fails to move forwards, because the conveyor instantaneously moves to counteract the plane's movement.
The plane's engines increase power, but again the conveyor increases its speed.
The plane maintains its position ON THE CONVEYOR, but it is being carried forwards on the conveyor.
Once the conveyor reaches 185mph the plane takes off.
The plane has used, just about, the same amount of fuel as in a normal takeoff on a normal runway and to observer the plane has had a normal takeoff unaffected by the conveyor.
The conveyor obeyed its programming.

Unless I'm wrong.

The plane's engines are generating enough thrust to reach take off speed of 185mph.
The plane fails to move forwards, because the conveyor is also moving at 185mph.
The plane maintains its position on the conveyor, therefore there is no airflow over the wings to generate lift.
The plane cannot take off.

 

[Deleted member 35927]

The plane's engines are generating enough thrust to reach take off speed of 185mph.
The plane fails to move forwards, because the conveyor is also moving at 185mph.
The plane maintains its position on the conveyor, therefore there is no airflow over the wings to generate lift.
The plane cannot take off.

No, youre thinking in terms of how a car would behave.
Same mistake a few others keep making , planes move relative to the air, not the ground.
It's very straight forward, plane wheels are designed to be as low friction as possible.
It would be like the conveyor isn't even there.
You simply cannot just magic away the force that the jet engines generating.

 

[GreiginFife]

ok, but did your car take off or not?

Sounded like it wanted too once the big turbo spooled up.

 

[SwingsitlikeHogan]

No, youre thinking in terms of how a car would behave.
Same mistake a few others keep making , planes move relative to the air, not the ground.
It's very straight forward, plane wheels are designed to be as low friction as possible.
It would be like the conveyor isn't even there.
You simply cannot just magic away the force that the jet engines generating.

I look at this quite simply. The only thing holding the aircraft from taking off would be the friction of the aircraft on the belt, but as the only part of the aircraft touching the belt are the wheels, and as the friction of the wheels on the belt is negligibly tiny relative to the thrust of the engines, the aircraft will take off normally…regardless of the speed of the belt. Imagine zero friction of wheels to belt…the belt won’t turn the wheels - the wheels might as well not be there (yes I know - suspended in mid air it would be)…nothing stopping the aircraft taking off as normal..

 

[3 jabber]

Nearly 600 responses, I can't believe so many of you are falling for this. Google the principles of flight and all will be revealed.

No airflow over the wing = no lift = no takeoff.

If you replaced the treadmill with a giant fan that could generate 180+mph of wind over the wings then you will get lift.

 

[Deleted member 35927]

Nearly 600 responses, I can't believe so many of you are falling for this. Google the principles of flight and all will be revealed.

No airflow over the wing = no lift = no takeoff.

If you replaced the treadmill with a giant fan that could generate 180+mph of wind over the wings then you will get lift.

 

[Voyager EMH]

Nearly 600 responses, I can't believe so many of you are falling for this. Google the principles of flight and all will be revealed.

No airflow over the wing = no lift = no takeoff.

If you replaced the treadmill with a giant fan that could generate 180+mph of wind over the wings then you will get lift.

The giant fan would have to maintain its position in front of the plane.
If it and the plane are both stationary, no conveyor, lift is created, but where does the plane go?
Does the fan have to takeoff as well to keep level with the plane and keep the plane in the air?

Anyway, I can't see how this supports or decries either view about how a plane behaves on a conveyor.

 

[3 jabber]

The giant fan would have to maintain its position in front of the plane.
If it and the plane are both stationary, no conveyor, lift is created, but where does the plane go?
Does the fan have to takeoff as well to keep level with the plane and keep the plane in the air?

Anyway, I can't see how this supports or decries either view about how a plane behaves on a conveyor.

You are absolutely correct, in order for the plane to fly the fan would have to move ahead of it as well but I was referring to creating lift. A spinning treadmill does not create lift. Hamburgerpete responded with laughing emojis because he knows I'm right and he has nothing to counter my argument with.

 

[Deleted member 35927]

You are absolutely correct, in order for the plane to fly the fan would have to move ahead of it as well but I was referring to creating lift. A spinning treadmill does not create lift. Hamburgerpete responded with laughing emojis because he knows I'm right and he has nothing to counter my argument with.

Firstly it's hambuger
Secondly there was nothing to reply to except laugh at the nonsense you posted.

 

[3 jabber]

Firstly it's hambuger
Secondly there was nothing to reply to except laugh at the nonsense you posted.

I take my hat of to you, this is one of the best trol windup threads I've seen on here

 

[Deleted member 35927]

I take my hat of to you, this is one of the best trol windup threads I've seen on here

That's what makes this place special ,
Don't agree with them , they're a troll.
Can't understand them , they're a troll
You get the idea
If someones only real input has been to accuse the op of being a troll it makes you wonder who really is

 

[Deleted member 36735]

 

[Voyager EMH]

You are absolutely correct, in order for the plane to fly the fan would have to move ahead of it as well but I was referring to creating lift. A spinning treadmill does not create lift. Hamburgerpete responded with laughing emojis because he knows I'm right and he has nothing to counter my argument with.

Oh, I thought you were creating a scenario with no conveyor.
You said replace the conveyor with a giant fan.

So the fan is on the conveyor but always ahead of the plane?
How does the fan maintain its position on the conveyor?

 

[Arthur Wedge]

 

[GreiginFife]

Oh, I thought you were creating a scenario with no conveyor.
You said replace the conveyor with a giant fan.

So the fan is on the conveyor but always ahead of the plane?
How does the fan maintain its position on the conveyor?

 

[Bunkermagnet]

Since this can only by a hypothetical question and unable to provide physical evidence to prove either way, can we just let this die?

 

[3 jabber]

Oh, I thought you were creating a scenario with no conveyor.
You said replace the conveyor with a giant fan.

So the fan is on the conveyor but always ahead of the plane?
How does the fan maintain its position on the conveyor?

I wasn't adding to or changing the scenario, just explaining the principles of flight which are indisputable.

 

[Deleted member 35927]

I wasn't adding to or changing the scenario, just explaining the principles of flight which are indisputable.

As are the laws of motion.

 

[Deleted member 35927]

Since this can only by a hypothetical question and unable to provide physical evidence to prove either way, can we just let this die?

But it can easily be proven and has many times over in the thread.

 

[Swango1980]

Since this can only by a hypothetical question and unable to provide physical evidence to prove either way, can we just let this die?

I suspect it will die, more quickly, if posters stop coming in and posting irrelevant comments to the OP, just to try and wind others up. If posters genuinely want a thread to die, I never understand why they:

1. Add another comment about wanting the thread to die
2. Come on the thread at all

It is only hypothetical because there would be literally no point in anyone setting up the experiment in the OP. Why? Because the science is known.