In article ,
(Henry J. Cobb) wrote:

"Kevin Brooks" wrote in message
et...
Why? Other (conventional) rotary aircraft currently within operating
inventopries are susceptable to VRS and manage to handle it by knowing the
limits--why do you think the V-22 should somehow be different? Illogical.

http://198.65.138.161/military/syste...t/v-22-vrs.htm
"This asymmetrical VRS phenomenon, which is unique to side-by-side
rotor configurations, will have the initial resultant effect of
inducing a large rolling moment in the yaw direction."

That's what's different about it.

You missed a quote:

"Vortex Ring State can occur in all rotary-wing aircraft under similar
conditions of low airspeed and high sink rate."

The article also doesn't mention that front/back twin-rotor copters can
have similar issues (one in, one out of VRS).

Then there's this:

"When flown in compliance with NATOPS WARNING limits and with adequate
training, susceptibility to VRS is nil."

In other words, don't drop faster than 800 feet per minute at speeds
less than 40 knots and this won't happen to you.

--
cirby at cfl.rr.com

Remember: Objects in rearview mirror may be hallucinations.
Slam on brakes accordingly.