http://www.youtube.com/watch?v=d0WykKgQFLs This is a video of a stunt pilot who, in real life,
is a Delta Airlines pilot. His act at air shows is
to pretend that he is a drunken spectator who
rushes from the stands and jumps into a Piper
Cub and takes off without any understanding
of how to fly a plane.
The Piper Cub is actually specifically built to
withstand an enormous amount of stress and
has a very powerful engine.
This type of stunt is actually the most dangerous
of air show acts, because of the low altitude at
which the pilot performs.
Obviously, this pilot possesses unbelievable skill.