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human987
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08 Oct 2008, 6:26 pm

anyone like planes? i love planes. ask me any question about them and ill awnser!
from the first planes to modern planes dont be afraid to ask!



Tim_Tex
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08 Oct 2008, 6:28 pm

Welcome to WP!


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JetLag
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08 Oct 2008, 7:48 pm

Great to see you aboard Wrong Planet, human987. And "Thanks" for the invitation to ask questions about airplanes. I'm going to keep that in mind. Now be sure to take care of yourself and here's wishing you all the WP best.



pakled
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08 Oct 2008, 8:52 pm

next time I need to chamfer a canard, I'll keep you in mind...;) Welcome to the planet.



Akajohnnyx
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09 Oct 2008, 12:22 am

I've always wondered how slow can a plane go before it just starts sinking and falling out of the sky? There's got to be some kind of speed threshold...


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ScrewyWabbit
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09 Oct 2008, 4:16 pm

Man, if people with ASD's are supposed to have a few special interests, mine were always airplanes and computers. I don't think anyone would have ever confused me with an aeronautical engineer or a rocket scientist, but there was a time I could tell you way more about military airplanes than just about anyone who didn't work in the field.



human987
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10 Oct 2008, 2:42 pm

akajhonnyx, i might be wrong but i belive there is no speed, that its just how strong the turbines or propellers are working.

8)



silverpelican
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13 Oct 2008, 9:06 pm

It's lift that keeps aircraft up and reverse lift that allows them to fly upside down. Gliders don't even have engines and stay up for hours depending on skill of the pilot. OTOH, lack of lift, natural lift, can be compensated by velocity of the aircraft, whence the space shuttle.



k_semler
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13 Oct 2008, 11:45 pm

Akajohnnyx wrote:
I've always wondered how slow can a plane go before it just starts sinking and falling out of the sky? There's got to be some kind of speed threshold...


There is no universal speed for every aircraft. Stall speed depends on several things. Such as aerodynamics, angle of attack, speed, weight, surface area, etc. Some aircraft can take off perfectly safe at 20 MPH, (like ultralight aircraft), while others need to reach around 120MPH to take off, (such as the Boeing 737). A good generic answer would be "Whenever the force of gravity is greater then the force of lift".



k_semler
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13 Oct 2008, 11:54 pm

silverpelican wrote:
It's lift that keeps aircraft up and reverse lift that allows them to fly upside down. Gliders don't even have engines and stay up for hours depending on skill of the pilot. OTOH, lack of lift, natural lift, can be compensated by velocity of the aircraft, whence the space shuttle.
Yes, strap a couple of Atlas IV rockets to a house, and you could shoot a house into orbit, (if it was built structurally sound enough, and you had enough thrust). However, when the space shuttle re-enters the earth's atmosphere, it acts as a glider. (In fact, it is designed to glide). If the space shuttle didn't need to navigate to a landing site, there would be little need for the tail and wings. If simply landing without navigation after a mission was the goal, the crew capsules of the Apollo era would have sufficed, (splash down in the pacific ocean). The Russians don't have a shuttle program; their cosmonauts return in the Soyuz capsule, (and the Russians don't splash down, they usually set down in Kazakhstan, (on land).



lau
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14 Oct 2008, 11:24 am

There is a critical wingspan, where there is no longer any need for speed at all - the "plane" will stay up while stationary. This wingspan is approximately 24,860 miles. If it is to "fly" at a height of 10,000 feet, just add 62,832 feet to the wingspan.

Oh! And welcome to WP, human987.


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