Well will it take off?

Well will it take off?

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en.wikipedia.org/wiki/Airfoil
youtube.com/watch?v=0ul_5DtMLhc
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Nope

no

nope

No, it gains no airforce to push it up in the air.

Why would you even think it would?

No, it'll crash into the uprights.

Yes. Yes is always the answer to this question. Although it would crash into the running machine. Want me to explain it to you plebs?

The wings generate no lift, so no

mugs

If a plane takes off, but there's no WTC around for it to hit, did it ever really fly?

It needs to have a fan taped to the front.

Yes

Yes, the Mythbusters proved it.

Yes because it's a jet. If it had props it wouldn't.

Your data is backwards

It would but hit the stupid arm things and then crash. So cut off the arms and she will fly.

Its not even a case if they proved it or not. Its the fact of how planes work. If this was a car then the car would not go forwards because a cars mobility is via the wheels on the belt.

But an air craft uses thrust to move. So all that would happen is the plane would move forwards and the belt would move backwards causing the feel movement wheels to spin twice as fast while the plane takes off.

It would even if it had props.

/thread

The plane's relative acceleration would be 0. No flight.

As long as the wheels don't fall off, yes.

If it was a car you'd be right since cars use wheels to move. Planes use air and thrust. You're an idiot. Congratulations.

Think about HOW a plane accelerates.

The plane uses the wheels' accelleration to take off though dumbass. Propellars only work in the sky.

No, it does not. The wheels are there simply so the plane isn't scraping along the ground. They're to stop friction.

Nope. The wings dont move relative to the air surrounding them

They do.

that one specifically? no. a real one on a giant treadmill? yes, the wheels will just be spinning a lot faster.

If that were true, take off would be instant. Unfortunately, the wheels have to gain momentum first.

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Pilot here:

NO. In this case, the wheels would overspeed and blow.

***If the treadmill truly matched the wheels speed, resulting in the plane not moving, then the wings generate no lift. The wheels would eventually overspeed, and blow.....

Ok, imagine this. You put the plane on a surface with absolutely no friction, meaning the wheels can't get any grip on the ground.

Will the plane be able to take off or not?

No. The plane gathers forwards momentum to produce lift with the wings. The wheels just progressively spin freely until the plane takes off. Absolutely no power goes to the wheels for forwards motion. Meaning a tread mill is totally negated in this situation.

lol where's the driveshaft you moron?

How so? Isnt the implication of that picture that the plane uses the treadmill just like you normally would? As in, you remain stationary

Of course not.

Clearly not a pilot since you got the question wrong.

yes, movement of wheels is enough, yet retards without basic understanding of physics are unable to conceive it
pic for better visualizing

Wanna know how i know you're not a pilot?

Nice bait. An aircraft uses thrust to create lift by moving through the air quickly. This plane is not moving anywhere, so no lift, and no takeoff.

In the axle.

No because us humans use our feet to move forward. A plane uses thrust.

So, according to your logic, this plane should not be able to fly.

Now you're just trolling.

This man is a master baitrr

Look closely. It has wheels.

This one doesn't. Can it fly or not?

The propellers create forward thrust, ergo, the plane is moving forwards, not the relative zero speed of a treadmill.

Fucking kek

That's the point I'm trying to make.

...

In theory, if the treadmill can move at up to ~1000 mph then it might be able to.

He's right you know

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Only if it moves forward enough to produce sufficient lift.

(You)

nope

No, it's wings would hit the uprights and halt it.

[Citation needed]

Imagine this for a moment. You're on a threadmill on rollerskates, and you have a rope to pull yourself forward with.

Do you move forward when you pull on the rope?

it would, the tires dont transport energy (except friction), they just roll however fast they have to, the jets move the plane, and they will work as always

en.wikipedia.org/wiki/Airfoil

'nuf said

That is the implication of the picture. People just want to overcomplicate it so that they can get a different answer.

I think the obvious implication of this hypothetical scenario is that the mill matches the speed of the plane like a regular one can match the speed of a person. It doesnt move forward relative to the frame of the mill

(Mug)

wrong

what if the treadmill was perfectly flat, pretty damn long and moved at 180mph and the brakes were on?

...

You're also a mug.

The threadmill will match the speed of the rolling wheels. In a realistic situation the wheels wouldn't be able to handle the amount of friction at some point, no doubt, but no matter how fast the threadmill is moving it won't stop the plane from moving forward.

If the brakes were on then the plane would go backwards 180mph.

whats wrong

Guys, reply to me when you work it out amongst yourselves

dubs confirm my post

a slight setback

>but no matter how fast the threadmill is moving it won't stop the plane from moving forward
Thats just wrong and doesnt even matter, since it is part of the hypothetical scenario.
IF the treadmill runs at take-off speed, would the plane take off?
Of course not.

youtube.com/watch?v=0ul_5DtMLhc

Here is the Myth Busters video. Showing how the wheels just turn twice as fast rather than the plane not moving at all.

How fast the threadmill moves doesn't matter. It just means the wheels will be rolling twice as fast as the plane is pushed forward by the thrust. Hence, the rollerskates and rope analogy.

No.

But the treadmill IS imparting energy into the plane. If it's engines are running at normal speed then it'll move forward but not quite fast enough to take off. It could eventually take off if the engines are pushed further.

no

Most planes arent moved by their engines alone. The important part for them to fly is having air flowing over the wings.

Where is the lift? All that's happening here is the wheels spinning.

No. Its imparting energy onto the "FREE MOVING" wheels. Not the plane. Which uses thrust. Not propulsion via the wheels. If this was a car you'd be 100% right. But its not a car. The wheels just spin faster.

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Of course it matters. Are you dumb? Firstly there is friction and oh, there is the problem with the engine not having unlimited thrust

So you're saying it wouldn't affect the takeoff thrust required at all? if the engines are off, would the plane just sit still on the mill with it's tyres spinning? No, the tyres would spin a bit but the hing would move backwards momentum. Same thing with the engines going on but the difference would be smaller, but still there.

But the engine propels the plane via thrust with the air not the wheels you absolute fucking pleb.

No it wont. It takes airflow over and under the wings to create "lift" due to higher air pressure under the wing then above the wing. How fast the tires spin doesn't matter at all. #learntoscience

You're right that I am oversimplifying things, but when it comes to discussions like this, that almost always feels necessary to get any sort of point across.

The point is that the plane will be able to move forward, and especially if the treadmill always matches the speed of the plane, the plane would most definitely be able to accelerate enough for the friction of the wheels to not be a concern.

No one is saying it wouldnt make a difference. What we are saying its the plane would take off. It seems you understand how thrust works and free moving wheels so why dont you think it would take off?

Learn the difference between ground-speed and air-speed and call me back...

sure. I didnt claim otherwise

Slowly maybe. Anyway you just disregard the scenario to not answer the question then

>Anyway you just disregard the scenario to not answer the question then

How so? The problem is stated as such that the treadmill always matches the speed of the plane. The plane would start moving forward and the treadmill would also start up, and the wheels will spin twice as fast as the plane keeps accelerating from the thrust.

No, air needs to move around the wings to create lift. Not the fucking wheels.

Fluid dynamics specialist here
it would not fly because there is no air flowing over the surface of the wing, thus generating 0 lift

No, it will crash into 911

Over and under

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