I cannot believe this has made it to TEN PAGES. Ok folks, all those saying it wont matter because the jet engine is pushing it, pat yourself on the back. Everyone else (cant believe I actually have to post this..)
http://www.fi.edu/flights/own2/forces.html
This explains all for those of you that cannot grasp how it works. I is called a runway because it needs to get up to speed for adequate air flow over the top of the wing to create lift for the underside of the wing. Spinning the wheels to make the plane launch. Wait there is a few planes that I know of that do not require a runway.
the harrier jumpjet:
http://www.militaryfactory.com/aircr...aircraft_id=47
the osprey:
http://www.fas.org/man/dod-101/sys/ac/v-22.htm
both of those are verticle ascent planes, other than that it is why the captain yell prepare for take off, cause you need to get moving at high velocity to feed the wings the airflow they need.
