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File 141324529758.jpg - (57.45KB , 300x300 , threadmill.jpg )
1012 No. 1012 [Edit]
what do you think, /tc/?
>> No. 1047 [Edit]
I never understood why people make a fuzz about this. There's no reason for it to not take off.
It would normally accelerate and take off, no matter how fast the conveyor belt is going. This is because the movement of the plane comes from the jet engines and not from the tyres like on a car.
The plane wouldn't be held in place, it would move forward and take off.

Post edited on 13th Oct 2014, 5:25pm
>> No. 1048 [Edit]
what kinda retard would think it would?
>> No. 1080 [Edit]
>>1048
It would take off. Fact.
>> No. 1103 [Edit]
>>1080
but there is the front part, it would block the wings.
>> No. 1104 [Edit]
>>1080
The treadmill would send it flying back. Fact
>> No. 1105 [Edit]
>>1103
Well you could also say the treadmill on the picture is way too short because the plane would still move forward just like on any other runway. But that's just nit-picking because of the image.
The image is just a simple mock-up that is used to demonstrate this concept in a basic manner by using things the viewer already is familiar with. You shouldn't take it too "literally".

In real life the conveyor belt would have to be really long, just as long as a real runway.

Post edited on 13th Oct 2014, 5:55pm
>> No. 1106 [Edit]
That plane is way too small to actually work and fly. It is probably a model without a working engine.
>> No. 1107 [Edit]
>>1104
Not if the plane engines accelerate at the right speed.
https://www.youtube.com/watch?v=0ul_5DtMLhc
>> No. 1108 [Edit]
It will not take off.
physics.stackexchange.com/questions/32269#32270
>> No. 1110 [Edit]
>>1108
Wrong, the guy in your link said himself it will take off. He only said that it can't take off without moving forward, it has to move forward like in a normal runway to take off and the belt needs to be really long.
>> No. 1111 [Edit]
>>1110
Obviously it will take off if it moves forwards. I always assumed OP's picture to imply that the plane is kept stationary relative to the ground by the motion of the treadmill. Otherwise it's just an obvious question.
>> No. 1112 [Edit]
>>1111
Believe it or not, most people who see this first think the plane would never take off.
>> No. 1113 [Edit]
No, because the wings would hit that front part.
>> No. 1114 [Edit]
>>1113
The picture isn't meant to be taken so literally. I mean, it looks like a complete joke if you take it that way.
>> No. 1119 [Edit]
>>1107
thats a propellor driven piston engine aircraft in your video. the method by which a propellor driven plane flies is entirely different from a jet powered aircraft. jet engine energy output isn't even measured in the same units as piston engines are, they're literally incomparable. you may as well have posted a movie of a flying carpet.
you're clearly not even remotely educated on this topic, i don't see why you're trying to pass yourself off as some sort of expert.
>> No. 1120 [Edit]
>>1119
they both fly because they have wings you genius.
>> No. 1212 [Edit]
I know this isn't meant to be taken seriously, but is it going against a treadmill making it slower, or going backwards, or stationary with respect to the ground?
>> No. 1214 [Edit]
Mythbusters did an episode on this and I don't know why. It's obvious that it will 'cause the engines provide thrust forward by moving air, not by turning the wheels, the wheels freewheel and are just there to hold it up. I can't believe that people are stupid enough to think that this would actually keep it on the ground.
>> No. 1692 [Edit]
>>1214
i disagree
>> No. 1693 [Edit]
>>1114
It looks like a joke even if you don't take it literally.
>> No. 1695 [Edit]
Just so people stop replying to this thread I'm gonna drop a knowledge bomb on you faggots.

It's called "Aerodynamics" and it's the reason airplanes have wings. You see, the wings generate lift by creating a difference in pressure, the shape of wings is such that air underneath is a higher pressure than the air over-top. Because pressure will always seek to reach an equilibrium, the higher pressure air will exert a force on the lower wing surface attempting to mingle with the much lower pressure air running over-top.

It is not the displacement of the engines that causes an airplane to travel upwards. This is idiot-proof when you realize that the engines are permanently mounted sideways, and couldn't possibly produce enough force downwards to generate lift.

The reason the airplane on a treadmill wouldn't work,(so long as the treadmill is rotating at a relative speed above the airplanes minimum take-off speed) is because it's airspeed is insufficient to cause a difference in pressure along the wing surfaces.

There is actually an effect similar to the treadmill mean in real aviation called "Tailwinds"; that is to say when the wind is blowing in a direction parallel to the planes travel, such that the wind is approaching from the rear to the front. It can, at sufficient windspeeds cause an otherwise airborne aircraft at the same engine displacement to stall and fall out of the sky, because the pressure differential under the wings is producing insufficient lift.
>> No. 1756 [Edit]
No, it will not fit between bars

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