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Posted on 4/11/24 at 2:12 pm to AlxTgr
quote:
quote:
Planes can fly with wheels not moving at all because the thrust of the engine is on the atmosphere (no trust to the wheels).
Oh...wow.
Ever see a seaplane?
The thrust is against the atmosphere.
If you have a big enough engine, those babies will take off on dry land.
747s have 240,000 horsepower by the way.
Implying that the speed of the wheels is going to counter the thrust of four 747 engines is laughable.
Posted on 4/11/24 at 2:13 pm to AlxTgr
quote:
Air movement over a wing.
And how do airplanes achieve that? Follow up, why do planes not just keep flying when they have engine failure midflight? Sully should have just kept flying, amirite?
quote:
This is a great question for those not getting the wheels on the moving treadmill part.
It is pretty funny that you of all people in this thread have a condescending attitude
Posted on 4/11/24 at 2:14 pm to tigerfoot
quote:
quote:
could put a regulator on the wheels so that they do not exceed the speed of the belt.
if I am belted into the wheels and the wheels match the belt?
What does "belted to the wheels" mean?
I'm not familiar with the term.
This post was edited on 4/11/24 at 2:14 pm
Posted on 4/11/24 at 2:14 pm to tigerfoot
quote:
so the wheels remain at rest?
No, but that's about the level of understanding I'd expect from you.
Posted on 4/11/24 at 2:15 pm to Street Hawk
Posted on 4/11/24 at 2:15 pm to LNCHBOX
quote:
Impossible as the force of teh treadmill is not transmitted to the actual plane.
If I put a toy plane with wheels on a treadmill and turn the treadmill on it will fall off the back of the treadmill.
So tell me exactly how the force of the treadmill is not transmitted to the toy plane in that case?
This post was edited on 4/11/24 at 2:19 pm
Posted on 4/11/24 at 2:15 pm to LNCHBOX
quote:I really don't, but if I did, why would it be funny? All I am doing here is trying to get you to understand the part you're missing.
It is pretty funny that you of all people in this thread have a condescending attitude
Posted on 4/11/24 at 2:16 pm to LNCHBOX
quote:So, it's about him and not the problem?
No, but that's about the level of understanding I'd expect from you.
Posted on 4/11/24 at 2:17 pm to JDPndahizzy
quote:
Of course I assumed it was stationary.
That’s the entire problem with this scenario. It uses two objects that aren’t even scalable to each other.
Posted on 4/11/24 at 2:18 pm to NATidefan
quote:
If I put a toy plane with wheels on a treadmill and turn the treadmill on it will fly off the back of the treadmill. So tell me exactly how the force of the treadmill is not transmitted to the toy plane in that case?
You've now describes a situation where the treadmill was moving significantly faster than the wheels on the plane. Also, you should look up videos of what balls do when they are paced on treadmills. Might blow your mind.
Posted on 4/11/24 at 2:21 pm to AlxTgr
quote:
All I am doing here is trying to get you to understand the part you're missing.
You're doing the funny thing again.
Just like how you completely ignored my questions to again tell me I just don't understand
This post was edited on 4/11/24 at 2:22 pm
Posted on 4/11/24 at 2:21 pm to NATidefan
quote:
So tell me exactly how the force of the treadmill is not transmitted to the toy plane in that case?
You have the force of friction fighting against Newton's first law of motion.
It would take minimal force from your hand to push the toy plane down (not forward) and successfully keep it stationary.
It would equally require minimal force for your hand to move the toy plane forwards and backwards on the treadmill.
The free wheels of the toy plane offset over 99% of the backward force from the treadmill (saving under 1% for friction in the wheels).
Imagine that jet engines generate a lot of force. And that the real plane still has free wheels.
Posted on 4/11/24 at 2:21 pm to LNCHBOX
quote:
You've now describes a situation where the treadmill was moving significantly faster than the wheels on the plane
Yes, the treadmill is moving faster than the wheels which are not moving, which makes the plane go backwards on the tread mill and fall off.
In the described scenario the wheels and the treadmill are going EXACTLY the same speed. Which means the plane would neither move forward or backward.
Which means no airflow over the wings.
Which means it won't take off.
Thanks for proving my point.
Posted on 4/11/24 at 2:22 pm to LNCHBOX
quote:Funny is good.
You're doing the funny thing again.
Posted on 4/11/24 at 2:22 pm to LNCHBOX
quote:they don’t rotate at a speed the same as the treadmill and move forward.
Also, you should look up videos of what balls do when they are paced on treadmills. Might blow your mind.
Posted on 4/11/24 at 2:23 pm to NATidefan
quote:
In the described scenario the wheels and the treadmill are going EXACTLY the same speed. Which means the plane would neither move forward or backward. Which means no airflow over the wings. Which means it won't take off. Thanks for proving my point.
Unless of course the force of thrust overcame the force of friction.
Posted on 4/11/24 at 2:23 pm to NATidefan
quote:every time he mentions the thrust of the aircraft overcoming the speed of the treadmill he does this
Which means no airflow over the wings. Which means it won't take off. Thanks for proving my point.
Posted on 4/11/24 at 2:24 pm to tigerfoot
quote:
they don’t rotate at a speed the same as the treadmill and move forward.
They also.dont shoot off the back, which was the point.
Posted on 4/11/24 at 2:24 pm to meansonny
quote:
Imagine that jet engines generate a lot of force. And that the real plane still has free wheels.
Not saying it doesn't have the force, but the wheels still have to spin faster than the treadmill so it moves forward to generate airflow over the wings.
The threadmilll matches the wheel spinning exactly (no matter how fast or slow they go)... so no movement forward.
This post was edited on 4/11/24 at 2:28 pm
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