John wrote:

Just came across this, it may be very old- still amazing:
http://www.bajabob.net/images/humor/...53inflight.WMV

Neat!
One of my A&P instructors, Marine CH53 mechanic, showed us videotape of a CH53A
looping and rolling. He said that a CH53 on the ground will chop off the front
of the cockpit if the cyclic is pushed forward abruptly.