Discussion about Osprey and Vortex Ring State
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Joined: May 2002
Aviation Qualifications: ATP+Mil
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From: Downeast
Discussion about Osprey and Vortex Ring State
I ran across this article a few minutes ago....makes for some discussion about the V-22 Osprey and its problems with Vortex Ring State....or not.
http://www.defensetech.org/archives/003236.html
http://www.defensetech.org/archives/003236.html
Joined: Mar 2001
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From: Apa, apo ndi kulikonse!
DJ - funniest reply to a post in ages... thanks!
Seriously though, what the aircraft did at Farnborough in it's 2006 display was most impressive, and they did have quite a bit of ground speed on if I remember correctly.
Intersting to see how it pans out.
(P.S. Are you the same DJ in this pic?? http://www.!!!!!!!!!!!!!!/open.file/1075687/L/)
Seriously though, what the aircraft did at Farnborough in it's 2006 display was most impressive, and they did have quite a bit of ground speed on if I remember correctly.
Intersting to see how it pans out.
(P.S. Are you the same DJ in this pic?? http://www.!!!!!!!!!!!!!!/open.file/1075687/L/)
Joined: Jul 2003
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From: Port Townsend,WA. USA
Since vortex ring state is related to downwash velocity, it could be argued that the tilt rotor with it's higher downwash has less of a problem than a smaller helo with low disc loading.
The V-22 could autorotate if 4000+fpm down is desired
no VRS in an auto!
I would guess the tiltrotor is not optimised for autorotation, has it ever been done?
The V-22 could autorotate if 4000+fpm down is desired
no VRS in an auto!I would guess the tiltrotor is not optimised for autorotation, has it ever been done?
Joined: Apr 2003
Posts: 1,635
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From: Vancouver, BC, Canada
AlanM,
Nope. 'Dave_Jackson' is just a pseudonym.
I am SASless's pinko-commie Correction officer. I correct him when his posts stray beyond certain limits.
P.S. Are you the same DJ in this pic??
I am SASless's pinko-commie Correction officer. I correct him when his posts stray beyond certain limits.
Joined: Dec 2006
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From: Australia
without reading any articles. I'd imagin that if you got into the wobbles Roll Wise while Near or in maximum RoD for given Tilt. you would probably put one side (Down wing side for given wobble) in or over Maximum Rate of Decent. Given Either in or near. the resultant attempt to corect would most certainly create a greater induced flow due to the now extra disk loading on that side. and if insufficient alt is avail, a pilot may grab full Colective and Just Blow it all Out One side.
Kinda make Sence??
May be i will read the Article. Let me know?
Kinda make Sence??
May be i will read the Article. Let me know?
