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Photo by George Guille, It's going to be a long 300km... Bolivian Amazon

I haven't been everywhere...
but it's on my list!


Photo by George Guille
It's going to be a long 300km...
Bolivian Amazon



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  #46  
Old 2 Feb 2008
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Every pub should have a name :

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  #47  
Old 3 Feb 2008
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Quote:
Originally Posted by Dodger View Post
MMn !

Ok, I had assumed that the conveyor was powered and would always travel in a reverse direction so as to counteract the forward speed of the aircraft .
If the belt was freewheeling then the only forces that you would have to overcome would be the weight of the aircraft and friction between the belt and the aircraft wheels.
I notice in your first posting you mentioned "capable of matching the speed." [ Bugger!]I should have read your post more closely .
Dodger, you assumed right, the conveyer is powered. As the plane moves foreward, the conveyer does in fact counteract the foreward speed of the wheels, but because they are wheels, it only effects the wheels themselves, not the aircraft. If the aircraft is moving down the runway, the wheels would me moving at aproximately twice the speed of the aircraft, but to no effect. The aircraft is being thrusted foreward by it's engines. The wheels only purpose is to support the plane, not drive the plane.
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  #48  
Old 3 Feb 2008
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Quote:
Originally Posted by Redboots View Post
I'd say it would not fly...

At take-off, the brakes are applied until the thrust developed by the engine(s) reaches the required power level.
The thrust then pushes the craft forward. The weight of the aircraft causes friction between tyre's and runway. This would set the "conveyor" in motion and the aircraft would remain static while the engine rev'ed and the conveyor conveyed

John
You are right. When the brakes are applied, the plane isn't moving, therefor the conveyor isn't moving either, bit when the brakes are released, the wheels move foreward. The conveyer counteracts this and spins the wheels at twice the speed, but this is irrelavent because the plane is moved foreward by thrust, not by friction with the ground. The plane takes off.
For every reaction there is an opposite and equal reaction. If the planes engines are creating 14,000 pounds of thrust and the plane is standing still, where is all the energy going?
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  #49  
Old 3 Feb 2008
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Quote:
Originally Posted by Dodger View Post
Every pub should have a name :
LOL!! Thats great! Thats almost as good as the doctor telling you: "Your wife's got acute angina..."
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  #50  
Old 3 Feb 2008
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Quote:
Originally Posted by Mr. Ron View Post
If the planes engines are creating 14,000 pounds of thrust and the plane is standing still, where is all the energy going?

Ah.

John
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  #51  
Old 4 Feb 2008
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Quote:
Originally Posted by Dodger View Post
In order to remain airborne the helicopter has to generate a downward force greater than it's own weight .
Equal to its own weight. Tut, tut.
Last edited by Caminando; 5 Feb 2008 at 13:48.
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  #52  
Old 5 Feb 2008
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Quote:
Originally Posted by Mr. Ron View Post
You are right. When the brakes are applied, the plane isn't moving, therefor the conveyor isn't moving either, bit when the brakes are released, the wheels move foreward. The conveyer counteracts this and spins the wheels at twice the speed, but this is irrelavent because the plane is moved foreward by thrust, not by friction with the ground. The plane takes off.
For every reaction there is an opposite and equal reaction. If the planes engines are creating 14,000 pounds of thrust and the plane is standing still, where is all the energy going?
YouTube - Mythbusters - Plane on conveyor belt the practice!
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  #53  
Old 5 Feb 2008
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Nice job Dodger! I hope this didn't keep you up at night.
Sweet dreams my friend...
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  #54  
Old 8 Feb 2008
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Quote:
Originally Posted by Hustler View Post
.
Can I get anyone else anything ?
Um, can I have a Nile Special and 20 Sportsman please? I'll give you some cash for the fags...
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  #55  
Old 14 Feb 2008
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Cool
I love the bar and the best bit is theres no chucking out time just drink and be merry all day everyday also means i never have to suffer a hangover ever again.
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  #56  
Old 15 Feb 2008
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Quote:
Originally Posted by stuxtttr View Post
I love the bar and the best bit is theres no chucking out time just drink and be merry all day everyday also means i never have to suffer a hangover ever again.

Yep, it's great in here, ice cold Guinness and no time called for how long you have to drink it!
Anyone else on Guinness?
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  #57  
Old 28 May 2008
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Good Idea to Meet Friends
Hi Everyone--

I am kinda new to this forum and want to meet new friends out here. Hopefully can gain alot to those motorcycle lovers like me. A fun forum to gain more friends, this is what it's all about.
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  #58  
Old 4 Jul 2008
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Beer, Beer, Beer !
Hurrah !
Another bikers Bar on t'interweb !
I'll have a pint of Fullers Discovery please.
And a PIE !
Perhaps you'd all like to join me in a singalong:
Beer, Beer, Beer
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  #59  
Old 17 Sep 2008
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Quote:
Originally Posted by Walkabout View Post
Yep, it's great in here, ice cold Guinness and no time called for how long you have to drink it!
Anyone else on Guinness?
sounds like the right order, make that 2
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  #60  
Old 12 Dec 2008
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Thumbs up tnx!
thank you very much... nice idea... love it cause i like making friends too...
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