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Can this airplane lift off?

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Offline sangyo soichiro

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Re: Can this airplane lift off?
« Reply #375 on: May 18, 2009, 11:44:31 AM »
Quote from: oldfordguy on May 18, 2009, 11:36:58 AM
How many of you also believe that a heavier object falls faster than a lighter one?  Shall we take a poll on that, too?

Be careful what you wish for....   8)
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Offline HavocTurbo

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Re: Can this airplane lift off?
« Reply #376 on: May 18, 2009, 10:06:57 PM »
Quote from: seaweb11 on May 18, 2009, 12:34:49 AM
Dude...your back online. How ya feeling?

Like #$%*.  :-\
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Offline mlinder

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Re: Can this airplane lift off?
« Reply #377 on: May 19, 2009, 06:21:33 AM »
Quote from: HavocTurbo on May 18, 2009, 10:06:57 PM
Quote from: seaweb11 on May 18, 2009, 12:34:49 AM
Dude...your back online. How ya feeling?

Like #$%*.  :-\

Glad yer ok, man. I've had three accidents. First one made me feel like #$%*, second like #$%*ing #$%*, third like #$%*ing hammered #$%*.
I know where yer at, man, heal quick.
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Offline Brown Bomber

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Re: Can this airplane lift off?
« Reply #378 on: December 15, 2009, 04:58:42 PM »
OK, I 'm chiming in late, (at least 120 days late according to the warning at the top of the reply screen) but if a stationary aircraft could achieve normal lift off, then a European Swallow should be able to carry a one pound coconut.   
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Offline MCRider

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Re: Can this airplane lift off?
« Reply #379 on: December 15, 2009, 05:02:45 PM »
Quote from: Brown Bomber on December 15, 2009, 04:58:42 PM
OK, I 'm chiming in late, (at least 120 days late according to the warning at the top of the reply screen) but if a stationary aircraft could achieve normal lift off, then a European Swallow should be able to carry a one pound coconut.   
The plane is not stationary, simply because the runway is moving. Forward motion is dictated by the propellor not the wheels.
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Offline Industrial Cafe

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Re: Can this airplane lift off?
« Reply #380 on: December 15, 2009, 05:09:33 PM »
it doesn't take off
see illustration-


no air pressure under lift area provided by forward motion of said lift area... plane no take off.
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everything I say is pure speculation and
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Offline Duke McDukiedook

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Re: Can this airplane lift off?
« Reply #381 on: December 15, 2009, 05:13:04 PM »
Theory of relativity- everyone is related, hence plane self destructs from indecision and general poopiness.  :(
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Offline Industrial Cafe

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Re: Can this airplane lift off?
« Reply #382 on: December 15, 2009, 05:13:55 PM »
heh, poop.
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everything I say is pure speculation and
I have no idea what I'm talking about  ._.

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Markcb750

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Re: Can this airplane lift off?
« Reply #383 on: December 15, 2009, 05:24:27 PM »
It depends on the oil, non synthetic will foam up from all the fruitless churning, blow up.



Its a fact.




I think.
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Offline MCRider

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Re: Can this airplane lift off?
« Reply #384 on: December 15, 2009, 05:33:43 PM »
Besides the oil....

There is nothing in the setup to the problem which precludes the plane moving forward from the thrust of its propellor.

Unlike a car, the wheels do not drive the plane, they spin free. THeir speed is dictated by the speed of the plane and the airstrip in this case, in combination, but they do not impede the forward progress of the plane which is driven by the propellor.

Or so I think.
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Offline Industrial Cafe

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Re: Can this airplane lift off?
« Reply #385 on: December 15, 2009, 06:00:35 PM »
"airplane on a treadmill" implied to me that it's tied down, and the treadmill is powered like the nascar treadmill or the one at the gym.

It would have to be a long treadmill otherwise. cause it wouldn't be moving.
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everything I say is pure speculation and
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Offline Gordon

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Re: Can this airplane lift off?
« Reply #386 on: December 15, 2009, 06:07:06 PM »
Really?  We're gonna do this again? ::)
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Offline Industrial Cafe

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Re: Can this airplane lift off?
« Reply #387 on: December 15, 2009, 06:08:33 PM »
i found a funny picture and posted it in the ssdb....
and we're back here again
sorry  :-X  :D
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everything I say is pure speculation and
I have no idea what I'm talking about  ._.

                                    Marla              .:71CB750:.CAFE

Markcb750

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Re: Can this airplane lift off?
« Reply #388 on: December 15, 2009, 06:11:22 PM »
I was able to watch the maiden flight of the 787 on the web today, technology is great!
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Offline TwoTired

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Re: Can this airplane lift off?
« Reply #389 on: December 15, 2009, 06:18:15 PM »
Quote from: Industrial Cafe on December 15, 2009, 06:00:35 PM
"airplane on a treadmill" implied to me that it's tied down, and the treadmill is powered like the nascar treadmill or the one at the gym.

It would have to be a long treadmill otherwise. cause it wouldn't be moving.

Original post says "runway like a conveyor belt".

You don't tie down airplanes on a runway.  You tie them down in a parking area where no flight is expected or wanted.
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Offline MCRider

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Re: Can this airplane lift off?
« Reply #390 on: December 15, 2009, 06:21:49 PM »
Quote from: Industrial Cafe on December 15, 2009, 06:00:35 PM
"airplane on a treadmill" implied to me that it's tied down, and the treadmill is powered like the nascar treadmill or the one at the gym.

It would have to be a long treadmill otherwise. cause it wouldn't be moving.
Nothing in the setup said the plane was immobile, tied down, and if it were, then the question is rediculous on its face.

No its a hypothetical, and a long treadmill is not precluded in the set up.  If we add our own conditions to the setup, we destroy the problem, turn it into something else.  It is what it is.
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Offline Industrial Cafe

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Re: Can this airplane lift off?
« Reply #391 on: December 15, 2009, 06:24:07 PM »
oh then yes it takes off. The stationary treadmill is just like any other runway.
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everything I say is pure speculation and
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Offline MCRider

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Re: Can this airplane lift off?
« Reply #392 on: December 15, 2009, 06:26:23 PM »
Quote from: Industrial Cafe on December 15, 2009, 06:24:07 PM
oh then yes it takes off. The stationary treadmill is just like any other runway.
Now I'm thinking maybe it don't...  ;)   ;D
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Offline ofreen

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Re: Can this airplane lift off?
« Reply #393 on: December 15, 2009, 06:26:47 PM »
Hey, it's back.  Maybe for another 16 pages?
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Re: Can this airplane lift off?
« Reply #394 on: December 15, 2009, 06:27:55 PM »
Quote from: ofreen on December 15, 2009, 06:26:47 PM
Hey, it's back.  Maybe for another 16 pages?

PMS























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Ron
1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
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Offline Industrial Cafe

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Re: Can this airplane lift off?
« Reply #395 on: December 15, 2009, 06:27:59 PM »
it's a stoner question.
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everything I say is pure speculation and
I have no idea what I'm talking about  ._.

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Offline hoodellyhoo

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Re: Can this airplane lift off?
« Reply #396 on: December 15, 2009, 06:44:07 PM »
NOOOO! It's a zombie thread! Somebody please shoot it in the head!
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Offline mick750F

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Re: Can this airplane lift off?
« Reply #397 on: December 15, 2009, 06:49:21 PM »


   Somebody please lock this thread and send it off to where it belongs...away from us all. It's an endless argument because of semantics and individual interpretation.

Mike
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Offline Bob Wessner

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Re: Can this airplane lift off?
« Reply #398 on: December 15, 2009, 06:58:37 PM »
.. Can't believe I even opened this one again.  ::) ;D

Might want to read this, though I doubt seriously it will settle it.  :-

\http://www.straightdope.com/columns/read/2638/an-airplane-taxies-in-one-direction-on-a-moving-conveyor-belt-going-the-opposite-direction-can-the-plane-take-off
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Offline mick750F

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Re: Can this airplane lift off?
« Reply #399 on: December 15, 2009, 07:05:13 PM »
Quote from: Bob Wessner on December 15, 2009, 06:58:37 PM
.. Can't believe I even opened this one again.  ::) ;D

Might want to read this, though I doubt seriously it will settle it.  :-

\http://www.straightdope.com/columns/read/2638/an-airplane-taxies-in-one-direction-on-a-moving-conveyor-belt-going-the-opposite-direction-can-the-plane-take-off


   C'mon Bob...do the right thing. Lock it up.  ;D

Mike
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