2007-09-24 05:18:57 · 9 answers · asked by majestic 1 in Science & Mathematics ➔ Astronomy & Space
An aircrafts wing is an airfoil. (see attached link). As the airfoil moves through the air the air flows slower across the top than the bottom. As the angle of attack increases, lift occurs as a result of high pressures under the air foil. This is all relative to the speed, chord length, attack angle and air foil design. Temperature and humidity affect density altitude (thinner air is harder two gain lift in).
2007-09-24 05:35:19 · answer #1 · answered by cowboy in scrubs 5 · 0⤊ 1⤋
the shape of the aircrafts wings causes the air on top to flow faster which drops the pressure while the air on the bottom flows slower having hi pressure. this causes the aircraft to rise.
2007-09-24 05:30:09 · answer #2 · answered by Anonymous · 0⤊ 1⤋
Not really an "astronomy and space" question, though not as far off as some.
There is a section titled "aircraft" under "cars and transportation;" you might get more answers there.
The short answer is "aerodynamic lift." For lots of information, including pictures and diagrams, try an internet search on "basic aerodynamics" or "principles of flight."
Good luck.
2007-09-24 05:25:06 · answer #3 · answered by aviophage 7 · 0⤊ 0⤋
It's actually moving at a very high speed. All man made satalite, the space station ISS and space craft such as NASA space shuttle are orbiting earth at a very high speed, and it is this speed that keep them up in orbit around earth.
They move at 9.3 km/s (18,000 mph) according to wikipedia
When the space shuttle takes off, it first climb up to a certain height, then it actually gradually goes horizontal instead of vertical, and accelerate up to its orbital speed. at that speed, it stays up there...
To decend, it use rocket to slow its speed down and as the speed drop, it gradually glides back into earth during re entry.
It's the speed that keeps it up in space orbit around earth.
2007-09-24 06:00:45 · answer #4 · answered by Hornet One 7 · 0⤊ 1⤋
In the case of a helicopter, it's because the machine vibrates so badly the Earth rejects it. . . . .
2007-09-24 10:00:43 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Bernouli effect
2007-09-24 05:36:49 · answer #6 · answered by SteveA8 6 · 0⤊ 1⤋
Don't believe all this "bernoulli" effect stuff.. and can the "areodynamics" and "lift" nonsense! We all know what really causes it : pure, unadulterated MAGIC! Mooo ahh ahh ahhh ahhhhhhhh!!!!!!!!
2007-09-24 05:56:13 · answer #7 · answered by Anonymous · 0⤊ 1⤋
Pressure differentials caused by the wings.........
I WILL SAY IT AGAIN, AND I AM RIGHT, PRESSURE DIFFERENTIALS!! FLOW OVER THE WING CAUSES A LOW PRESSURE ON TOP OF THE WING, ALSO CALLED LIFT!!
..
2007-09-24 05:23:35 · answer #8 · answered by muddypuppyuk 5 · 0⤊ 2⤋
its propellar. engine jet propellar.
2007-09-24 05:42:18 · answer #9 · answered by negimagi 2 · 0⤊ 1⤋