[Joe_]

Quote:

Originally Posted by TheLastOne lol ok thanks guys EDIT~ i know that when u press 2 the gears(wheels) go up and u dont see the wheels anymore.... and when u press it again it comes down ^^

Yes, just like in a real aircraft-

When the landing gear (The wheels) are down, they create drag (when flying) hense slowing the aircraft down.
When the landing gear is up, it removes the drag and allows you to go faster.

This is why in every aicraft that has a dynamic landing gear in real life, after takeoff, First thing you do is get the landing gear up, to remove all the extra drag.