The Return of the most infamous HB thread of all time... :D

[gn7]

DO you agree with the framework OR do you want to pick a speed?

I am ashamed of you Bruce. The speed is irrelevant. There is an underlying physical property here that he is depending on, and he keeps it a constant in his head, regardless if the physics are there to back it up. Its a hypothetical no rules question. Its BENCH RACING at its finest. You can't win, because the "tread mill won't let you, regardless if the tread mill is real or fantasy. Its what Tish "sees" the tread mill doing, regardless if a REAL tread mill would actually do what he sees.

Its a mind game, its hypothetical.

Snoc had this dead on, his wording was a little twisted. But I see what he was eluding to. tish would never allow that in the hypothetical mind game.

I can have Tish twisting and doing the mmmm and aaaaa in one post. But he will give the ole Obama spin and make the hypothetical physics win out.

[Tishimself]

Now STFU!
Says it right there in the video. Wheel speed has nothing to do with air speed.

That is an incorrect example as it was originally asked. Because the plane has the engine in the nose, it's an ultralight, and it has a thrust to weight ratio almost equivalent to that of an RC aircraft that test was a joke, and they made fools of themselves. It was also able to generate wind over the wings. The original aircraft was a 747.

[HB Vic]

Here's the answer to the question no matter how you phrase it.

If the plane stays in the same place, relative to the ground, it will not take off.

If the plane moves, it will take off.

[2manymustangs]

There is no set speed. They (no matter the number) should always be equal.

But there is a set speed... HOw fast is your treadmill? 6 minute mile or 10 minute mile? and remember, the treadmill is only one mile long, then off into the abyss...

What does the treadmill represent? the rotation of the earth?

[Tishimself]

But there is a set speed... HOw fast is your treadmill? 6 minute mile or 10 minute mile? and remember, the treadmill is only one mile long, then off into the abyss...

What does the treadmill represent? the rotation of the earth?

There is no set speed for the treadmill. It can go as fast as it needs to in order to counter any forward movement of the plane. Remember, the moment the wheels start turning faster than the treadmill, the plane will move, once they are spinning at the same speed, the plane will stop. Since the wheels will not ever be able to spin faster than the treadmill, the plane can not move. As for what it represents. Nothing. Its just the instrument used to illustrate this version of the question.

[Cat & Mice]

I posted in the original HB thread and said it will still take off.

I am a pilot, although I have not flown by myself for over 20 years LOL

The type of plane does not matter, its not like the plane in the Myth buster episode can push enough air over the wings from the prop to fly, if it did then it could take off vertically. Which it can not.

The only issue is if the wheels can not spin twice as fast as the take off speed of the plane. If they can then you will take off regardless of if its a Piper Cub or a 747. In other words if take off speed is 100mph then the wheels need to be able to handle 200mph on the treadmill scenario.

MP

[gn7]

But there is a set speed... HOw fast is your treadmill? 6 minute mile or 10 minute mile? and remember, the treadmill is only one mile long, then off into the abyss...

What does the treadmill represent? the rotation of the earth?

Fuck the speed, its irrelevant, and you DO NOT NEED SOME TOP SPEED to have the plane take off. You are beginning to sound like him. He already told you, the treadmills top speed match the plane's. Well duh, of course he did. But it still DOES NOT MATTER!!! That's not whats play here. Go read snoc's post over again, and think about you or a car or a top fuel dragster in a treadmill, and then an airplane. Then you MIGHT get it. MIGHT is the operative word here. I am not counting on it though.

[gn7]

I posted in the original HB thread and said it will still take off.

I am a pilot, although I have not flown by myself for over 20 years LOL

The type of plane does not matter, its not like the plane in the Myth buster episode can push enough air over the wings from the prop to fly, if it did then it could take off vertically. Which it can not. The only issue is if the wheels can not spin twice as fast as the take off speed of the plane. If they can then you will take off regardless of if its a Piper Cub or a 747. In other words if take off speed is 100mph then the wheels need to be able to handle 200mph on the treadmill scenario.

MP

ding ding ding ding!!!!

Tell the man what he won






A free chicken dinner.

[Tishimself]

I posted in the original HB thread and said it will still take off.

I am a pilot, although I have not flown by myself for over 20 years LOL

The type of plane does not matter, its not like the plane in the Myth buster episode can push enough air over the wings from the prop to fly, if it did then it could take off vertically. Which it can not.

The only issue is if the wheels can not spin twice as fast as the take off speed of the plane. If they can then you will take off regardless of if its a Piper Cub or a 747. In other words if take off speed is 100mph then the wheels need to be able to handle 200mph on the treadmill scenario.

MP

There is no top speed for the treadmill. It can turn as fast as it needs to in order to counter the wheels. 200, 400, 1000...no limit. The plane in the example has a power to weight ratio off the charts. If that guy wanted, he could take off from a standing start with a 5 foot taxi. It is absolutely possible for a propped plane to take from a standing start. That's what the plane in the example is designed to do...watch this....

[WESTERNAERO]

That is an incorrect example as it was originally asked. Because the plane has the engine in the nose, it's an ultralight, and it has a thrust to weight ratio almost equivalent to that of an RC aircraft that test was a joke, and they made fools of themselves. It was also able to generate wind over the wings. The original aircraft was a 747.

I give up. Think what you want.