Draw a FBD.
Plane flies. Thrust is never negated by any opposite force.
Plane flies. Thrust is never negated by any opposite force.
The Treadmill & Airplane debate solved & Explained
- Thread starter Outlaw99
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had a feeling. would be awesome if you could make hero passes on the dyno
im prety sure there are some out there that can do a simulated pull
In Havard looking down at all of us retards that think airplanes fly using air and thrust.
Another way to scale it down is a small model plane on an actual treadmill.
Tie a string to the nose of the plane. This force will simulate thrust. Now pull it. It moves, right? K.
Now turn the treadmill on. Pull the plane along again. Still moves huh.
Crank the treadmill to max. There may be slightly more force required to pull it to overcome frictional resistance at the tires/bearings, but its never enough to limit you pulling it.
I'm sure if you could somehow control an actual flyable model plane on a large enough treadmill you could test it fully.
Tie a string to the nose of the plane. This force will simulate thrust. Now pull it. It moves, right? K.
Now turn the treadmill on. Pull the plane along again. Still moves huh.
Crank the treadmill to max. There may be slightly more force required to pull it to overcome frictional resistance at the tires/bearings, but its never enough to limit you pulling it.
I'm sure if you could somehow control an actual flyable model plane on a large enough treadmill you could test it fully.
This has been done, videos are in this thread
The best demonstration I've seen for this was wearing roller skates on while on a treadmill and holding a rope. When the treadmill is going you just hold on to the rope and stay stationary and to move forward you simply hand over hand on the rope and pull yourself forward with minimal force. It doesn't matter how fast the treadmill is going, all you have to do is overcome friction in the bearings to pull yourself forward. Hands=prop, rope=air. The prop is basically pulling on the air to go forward so the plane moves, generates lift, and takes off easily.
If the plane isn't under power it will move backwards but yes, no matter what the treadmill does thrust will move the plane forward. If the treadmill was moving forward it wouldn't make much a difference in takeoff because the wheel bearing friction is minimal. To put the friction into perspective, a Cesna 172 weights around 1,500 lbs empty and 2,500 lbs loaded......it's easily pushed into hangers with a hand truck. It's much easier to push than a car because you're not fighting the friction of gear trains.
Standing on the porch at a cabin in Georgia drinking Balvenie Caribbean Cask.
For that WAP, Tyre was willing to change his pronouns to was/were.
*drone* pilot
Locking in...before the internet explodes. lol
Do you need him to sign for your L?
The wheels have absolutely nothing to do with the acceleration of the plane generated by thrust. Thrust is pushing against the air, not the ground (or moving ground).
An answer from an actual university physics department not a bunch of I googled on the interwebz.
Again, depending on parameters the plane can both take off and not take off.
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Plane and conveyor belt. From Physclips: Mechanics with animations and film clips.
An airplane is on a conveyor belt which moves in the opposite direction. Can the plane take off? Physclips provides multimedia education in introductory physics (mechanics) at different levels. Modules may be used by teachers, while students may use the whole package for self instruction or...
www.animations.physics.unsw.edu.au
Again, depending on parameters the plane can both take off and not take off.
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So if you put the brakes on or the wheel bearings are seized then it would not take off, just like on normal ground. No shit. Pretty sure we’ve covered that.
The entire Denver Metro Area is about to lift off due to thrust created from the Gas Turbines I just Throttled up to max. Keep your eye on the sky boys.
Well of course you could.
The dyno will have to be a mobile truck mounted one. The driver ideally blasts off a 1/4 mile effort while simultaneously running your pull.
Before you try this you should check whether it is legal in your state.
Trucks equipped like this will not provide a good estimate of your car's potential E.T. Most times it will read higher time and lower trap speed.
Good luck.
Mannn that shit is like the morning dew off an angels nipples...
Bro, I bought the Portwood from Balvenie and it is the elixir of the gods from the nipples of goddesses.
For that WAP, Tyre was willing to change his pronouns to was/were.
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