Plane

[Whereditgo]

You misunderstood me, or didn't read what I wrote very well. I said the same as this. (1)

Comparing: plane moving and plane stationary.
I said that when plane is moving, one rotation of wheel is done over same length of conveyor, but this happens in a shorter time than when plane is stationary.

The one wheel turn and the coinciding circumference length of conveyor are done in the same time interval - always matching each other - the tangential speed of wheel matching speed of conveyor as the OP states.

I really do not understand how someone perceives one turn of wheel's circumference coming into contact with more than the length of its circumference of the surface it is contact with. (2)
For me this always has to be the same, unless there is some slipping or skidding.

For the point of contact there are matched speeds: tangential speed of wheel - speed of conveyor.
If the speeds were different, one would have to be slipping over the other.

(1) I see now what you intended to mean by "One circumference of the wheel will still turn across the same length of conveyor every time and in the same time-interval."

(2) People have been saying this for quite some time now, I don't think anyone perceives it any different.

 

[sunshine]

I think the OP could just be simplified.

If a plane tried to take off, but was on a giant treadmill operating at same speed plane wants to go, but in opposite direction, could the plane take off?

The answer would then just be yes, it could, just as normal.

We then would need to worry about wheel speed, rotation, etc

Simnplify the OP, still the same outcome. No airflow over the wings so no lift. Plane cannot take off.

 

[sunshine]

I've just revisited this thread and see there's been another 15 pages of nonsense.

Contributions on this thread are divided into 3 groups:

1. People who understand that airflow over the wings generates lift, therefore recognise that a stationary plane cannot take off.
2. People who think that the jet engines generate lift, so believe the plane can take off, and therefore get side tracked down all sorts of rabbit holes discussing wheel friction, length of the treadmill, wheel rotations etc. All they are doing is inventing their own parameters which aren't in the problem statement.
3. People who are here on a wind up. The guy who can't spell hamburger being the most successful so far.

 

[Lord Tyrion]

Thread locked. It's run its course and has now just become a source of bickering and insults. Recent pages have been tidied and warnings handed out.

I have no intention of going back through the thread to remove all bickering so please no historical reporting to 'even' scores.