A Conversation for Taking Off and Flying
Flying
IAmAPilot Started conversation Jan 18, 2005
No, No, No!! Please, do not propagate the myth that two air molecules arriving at the leading edge of a wing, one going above and one below, must in theory reach the trailing edge at the same time. It is not true and there is no logical reason to think it should be true. All studies of air flow in wind tunnels also demonstrate that it is not true (not even approximately true) in practice. Two molecules/particles/parcels of air that separate at the leading edge are quite independent and certainly don't know they are 'supposed' to arrive at the same time!
It is perfectly possible to build flat wings (e.g. in a simple balsawood model glider) that produce lift with the upper and lower surface being exactly the same length. Aeroplanes can be flown in level flight upside-down with the flatter surface upper most and still produce excellent lift. The key to all this is angle of attack. Aerofoils are cambered to reduce drag, keep the boundary layer attached for longer, and other reasons of aerodynamic efficiency - different path lengths for upper and lower surfaces are NOT REQUIRED for lift.
Flying
G-AWAT Posted Apr 30, 2005
I have heard before that the air molecules do not arrive together at the trailing edge.
This being the case, does the air on the upper surface still have to travel faster?
If so why?
And if not, how is lift really produced, as the dynamic pressure would be equal above and below the wing?
Really hope you can answer this as it's puzzled me for years.
Flying
livingnathan Posted Apr 25, 2006
i tied to fly and failed
I went skydiving I PLAYED CHIKEN WITH THE GROUND AND LOST
Flying
JimBob17 Posted Apr 25, 2006
wow an intellectual conversation this is the first one i've found!
Flying
livingnathan Posted Apr 25, 2006
sorry i took so long to reply i had a hot curry last night and it burned a ring of fire if you get my drift
Flying
JimBob17 Posted Apr 25, 2006
You could fly without wings simpson uve got more wind than nelmsey! that gotta b hard to do! Smelly arab...
Flying
livingnathan Posted Apr 25, 2006
poor person who has started this conversation they are doomed
Flying
JimBob17 Posted Apr 25, 2006
~I agree now we got here we r the best way to distroy a conversation!
(PS u can fly better with Weed)
Flying
livingnathan Posted Apr 25, 2006
No nelmsys just full of hot air and 80% food the big fat pie eater
Flying
livingnathan Posted Apr 25, 2006
Die you decreped monkey thing even now i am using my master plan to destroy your life forever now wheres matts number he has been looking for a new girlfriend or maybe LEO 
Flying
JimBob17 Posted Apr 25, 2006
we should set up LEO and MATT they both smell and they are both TW ATS!!
The unwashed with the unwashed, they fit like glove and hand! hehehe
Flying
dead-man Posted May 8, 2006
as simpson said you will soon meet your fate walters at the hands of the dead man
Flying
JimBob17 Posted May 9, 2006
so kill me. I'll enjoy it... kill me slowly and painfully please?
Key: Complain about this post
Flying
- 1: IAmAPilot (Jan 18, 2005)
- 2: G-AWAT (Apr 30, 2005)
- 3: livingnathan (Apr 25, 2006)
- 4: JimBob17 (Apr 25, 2006)
- 5: livingnathan (Apr 25, 2006)
- 6: livingnathan (Apr 25, 2006)
- 7: JimBob17 (Apr 25, 2006)
- 8: livingnathan (Apr 25, 2006)
- 9: JimBob17 (Apr 25, 2006)
- 10: livingnathan (Apr 25, 2006)
- 11: JimBob17 (Apr 25, 2006)
- 12: livingnathan (Apr 25, 2006)
- 13: JimBob17 (Apr 25, 2006)
- 14: dead-man (May 8, 2006)
- 15: JimBob17 (May 9, 2006)
- 16: dead-man (May 17, 2006)
- 17: JimBob17 (Jun 5, 2006)
- 18: dead-man (Jun 6, 2006)
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