Bob
There is not a helicopter made with that much excess power unless it
is a UNLOADED sky crane. You have to fly out of the vortex into clean
air either forward, backwards or sideways. The more collective you
pull the faster you drop. Been there and done that and had the crap
scared out of me when it happened on a steep down wind landing.

A good demo of this is LTE loss of tail rotor effectness when doing
360 degree hover turns about a point with a strong wind. If you get
the turning speed just right it is going to do an uncommanded spin for
part of the turn and there is not a darn thing you can do about it
once it starts except ride it out and let it turn till the wind blows
the vortex away and your tail rotor is not in the tail rotor "side
wash" vortex any more.
John

On Thu, 18 May 2006 01:18:37 GMT, boB
wrote:

The OTHER Kevin in San Diego wrote:


Once in the downwash, you can't apply more power to get out of it.
Doing so only accelerates the downwash and increases the sink rate.
You can't "retard the sink rate" by hauling up on the collective.

Again, the only way out is to apply cyclic to fly out of the
downwash...

Of course you can apply collective and slow the decent rate if you have
enough power. The rotor wash does not increase equal to the amount of
power applied. You don't "increases the sink rate" unless there is no
power left.