what course must an airplain fly until one into airplain don't feel his weight?

Question

how?
what time can he have this feel?

Answer 1

you can simulate weightlessness by flying a parabolic curve. By doing this you will experience "zero g" or weightlessness relative to the airplane. NASA uses this technique to train astronauts.

Answer 2

when the plane is put into a dive (from high altitude) and reaches
speed over terminal velocity (16 ft per sec/per sec)some where around 120mph you should floater like a feather-- but hang on ---
sky divers do it all the time--they just don't stay in the plane.

Answer 3

pretty fast