Dead Man's Zone (Chopper)

[Splash]

Has anyone heard of the "Dead Man's Zone" for a chopper?  The number 40 works its way in there somewhere.  Am I correct in assuming its 40 mph at 40 feet on any terrain.  Saw it on a Flight Path where they herd wildlife (very low and slippin' and slidin', but missed exactly what it meant. It sure as heck looked impressive

[SilverFox441]

You are correct in your assumption.

The number varies but 40-40 is a good guestimate. If you suffer a problem you are too low to convert altitude to energy for autorotation and too slow to convert airspeed.

Problems in that flight regime generally end up being very serious.

[Splash]

Thanks SilverFox, knew it was somethin wickedly dangerous by the way they were flyin'.   That guy could sure handle a chopper, but one little twitch and it was all over for him for sure
Splash