Osprey tested in air, at sea, but not in vortex ring state.

On 10 Dec 2003 17:29:16 -0800, (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.

-HJC

A "rolling moment in the yaw direction"????? Is it just me, or does that
make no sense at all??

Al Minyard

Alan Minyard wrote:

A "rolling moment in the yaw direction"????? Is it just me, or does
that
make no sense at all??

I'd read that as "It will yaw and then try to roll in the direction of the
yaw." So if the nose swings left, it will also try to roll left, sort of a
corkscrew movement.
--
Tom Schoene Replace "invalid" with "net" to e-mail
"If brave men and women never died, there would be nothing
special about bravery." -- Andy Rooney (attributed)

On Sat, 13 Dec 2003 03:23:39 GMT, "Thomas Schoene" wrote:

Alan Minyard wrote:

A "rolling moment in the yaw direction"????? Is it just me, or does
that
make no sense at all??

I'd read that as "It will yaw and then try to roll in the direction of the
yaw." So if the nose swings left, it will also try to roll left, sort of a
corkscrew movement.

That does make a lot of sense out of a senseless phrase :-)

Al Minyard