Trick question

[Old Bald Guy]

Well as much as I hate to admit it. I believe I’m wrong here. After watching the video on myth busters I understand differently.

The plane and the conveyor have no effect on each other BECAUSE OF THE WHEELS!


Sent from my iPhone using Tapatalk Pro

You will also notice in the original question it says the conveyor matches the speed of the wheels not the rpm of the wheels. To get a speed you need movement.

[rolylane6]

You will also notice in the original question it says the conveyor matches the speed of the wheels not the rpm of the wheels. To get a speed you need movement.

Then the entire conveyor is moving too, not just spinning, because it said speed not rpm, right? Which means the conveyor will move out from under the plane entirely and quickly then the plane will either lift off or run out of runway and crash.
Oh and RPM is a measurement of speed. So actual forward movement is or is not necessary to make it valid

Sent from my SM-S918U using Tapatalk

[Artos]

They pulled the belt in the opposite direction as the plane took off. If your line of reasoning was correct the plane would have stayed in the same spot on the belt and came backwards with the belt.

Thanks...I totally missed that one.

[Old Bald Guy]

Then the entire conveyor is moving too, not just spinning, because it said speed not rpm, right? Which means the conveyor will move out from under the plane entirely and quickly then the plane will either lift off or run out of runway and crash.
Oh and RPM is a measurement of speed. So actual forward movement is or is not necessary to make it valid

Sent from my SM-S918U using Tapatalk

Well since the conveyor belt is moving from one end of the runway to the other and back I would say that could be counted as speed. Keep in mind that if the plane isn't moving the conveyor belt won't be moving either.

[MadHatter]

[/B][/I]


How's that?

A prop pulls, a jet pushes, and you can pitch the prop, not to mention the prop is pushing wind under and across the wings.
Why do you think Draco takes off in like 10ft, show me a jet without pitchable thrusters that can do that.

[MadHatter]

Well since the conveyor belt is moving from one end of the runway to the other and back I would say that could be counted as speed. Keep in mind that if the plane isn't moving the conveyor belt won't be moving either.

Keep going, I might understand eventually.....
It says wheels in the OP question, it says nothing about the plane moving.
If the wheels are turning the conveyor is spinning.
Where do you get the idea if the plane isn't moving the conveyor won't be moving?
I read it exactly the opposite, and I understand the wheels aren't driving the plane, but it needs them to move forward.

[MadHatter]

Wrong, if the conveyor is running the same speed as the wheels and the wheels aren’t moving the conveyor won’t be moving either.
The car on the dyno is strapped down. Ever see what happens when one comes loose? Plus the car on the dyno is driven by the wheels the plane isn’t.

And the car drives the wheels on the dyno also, that's where you get your reading from.
If the wheels on the dyno spun in the opposite direction like the plane scenario it would not need to be strapped down, and your car would read 0 horsepower.
Without friction the dyno doesn't work.
Apples to oranges.

[critter69]

If I follow I say no.The plane isn’t moving and wind won’t give it lift.That’s the answer that makes sense in my head.

Agree.

[drs]

It would still take off but the wheels would be spinning faster than normal

[bigdaddy590]

By some logic on here, all planes should take off like helicopters.


Sent from my iPhone using Tapatalk

[Old Bald Guy]

And the car drives the wheels on the dyno also, that's where you get your reading from.
If the wheels on the dyno spun in the opposite direction like the plane scenario it would not need to be strapped down, and your car would read 0 horsepower.
Without friction the dyno doesn't work.
Apples to oranges.

Lol. The rollers on a dyno spin in the opposite direction as the wheels of what is on the dyno.

[Old Bald Guy]

It would still take off but the wheels would be spinning faster than normal

No. If the belt is moving backwards the exact same speed as the plane is moving forward the wheels wouldn’t rotate.

[Gumbo Man]

I give up. Where do I send my $100 ?

[rolylane6]

Well since the conveyor belt is moving from one end of the runway to the other and back I would say that could be counted as speed. Keep in mind that if the plane isn't moving the conveyor belt won't be moving either.

Wheels turning is also speed. Keep in mind if the conveyor belt is moving so are the wheels and neither affects the jet propulsion or its thrust

Sent from my SM-S918U using Tapatalk

[Tom]

I give up. Where do I send my $100 ?

I will be by at lunch on Wednesday