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  #131  
Old 06-07-2012, 10:00 AM
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Mike S Mike S is offline
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Just got this in an email yesterday, thought it was good timing for posting here.

https://www2.gotomeeting.com/register/494013370
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  #132  
Old 06-07-2012, 10:19 AM
sandifer sandifer is offline
 
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Quote:
Originally Posted by Mike S View Post
Just got this in an email yesterday, thought it was good timing for posting here.

https://www2.gotomeeting.com/register/494013370
Ben knows his stuff and puts it to use as a member of the current US Advanced aerobatic team. Should be a good webinar.
  #133  
Old 06-08-2012, 12:41 PM
RVZoomie RVZoomie is offline
 
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Location: Spokane, Wa (KSFF) & the 'stan'
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Default 180 deg bank= inverted

Quote:
Originally Posted by TSwezey View Post
Is that like somebody doing a 360 to turn around and go in the opposite direction?
It was someone who apparently was caught in wake turbulence vortices and claimed it caused him to roll all the way over (inverted) b/c the wake was so strong (he was out of position). I argue to continue the roll to recover if the aircraft is already inverted rather than fight the angular momentum and wake vortex as well.
  #134  
Old 06-08-2012, 08:12 PM
B25Flyer B25Flyer is offline
 
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The key to surviving a botched roll close to the ground is getting the nose above the horizon. That means stopping what you are doing and pushing the stick or rudder, whatever it takes, (and what it takes is a hard control input that is very uncomfortable,) to put some air under the nose. In a non-inverted airplane, this means the engine quits... but there is no advantage to having the engine running when you hit the ground upside down....
  #135  
Old 06-08-2012, 08:24 PM
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dmaib dmaib is offline
 
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Quote:
Originally Posted by B25Flyer View Post
... but there is no advantage to having the engine running when you hit the ground upside down....
Now that is some advice you can take to the bank! ^_^
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  #136  
Old 06-09-2012, 04:59 AM
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pierre smith pierre smith is offline
 
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Location: Louisville, Ga
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Default Nope

Quote:
Originally Posted by RVZoomie View Post
It was someone who apparently was caught in wake turbulence vortices and claimed it caused him to roll all the way over (inverted) b/c the wake was so strong (he was out of position). I argue to continue the roll to recover if the aircraft is already inverted rather than fight the angular momentum and wake vortex as well.
I'm with Doug R on this one! If the airplane was rolled inverted, the nose would already be pointed further downhill than before the half roll. Continuing the roll will probably result in a near 45 deg impact!

Best,
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  #137  
Old 06-09-2012, 07:37 AM
paul330 paul330 is offline
 
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There seems to have been a bit of thread drift here.

Looking at the original incident, there seems little doubt that it was not a spin but a spiral dive. The recovery from a high speed, nose low departure is to close the throttle, un-load, roll to the nearest horizon and pull to level.

Having said that, I agree that in some specialist aerobatic aircraft, you may be able to push your way out of it but the situations where that would help are minimal - if you can roll, then the postiive g available is typically twice the negative g.

I refer back to my original comments some pages ago. Whilst I commend the honesty in reporting this incident, if you don't know the difference between a spin and a spiral dive, then you didn't ought to be flight testing an aeroplane.

Edit: The roll should be unloaded
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Last edited by paul330 : 06-09-2012 at 05:48 PM. Reason: added "un-load"
  #138  
Old 06-09-2012, 07:40 AM
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N355DW N355DW is offline
 
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Location: Port St Lucie, FL
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Quote:
Originally Posted by pierre smith View Post
I'm with Doug R on this one! If the airplane was rolled inverted, the nose would already be pointed further downhill than before the half roll. Continuing the roll will probably result in a near 45 deg impact!

Best,
I agree, but just to be clear, the best path would both push the nose up and continue the roll at the same time, but I assume that's what you and Doug both mean. I can't honestly say for sure I would automatically continue the roll, my first instinct would probably be to try to stop it. I guess it would depend on how fast I was rolled inverted. If I was rolled to the left, my guess is I would be more likely to continue the roll, as that is the way most competition pilots prefer to roll. I do I know I would push the nose up without thinking about it, I have done so many competition style rolls (as opposed to barrel rolls) it's automatic. The great thing about having aerobatic experience is, especially at low altitudes you don't want to have to think to much about the proper use of the controls, you need to just do it!

Sorry about the thread drift!
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  #139  
Old 06-09-2012, 09:24 AM
aerhed aerhed is offline
 
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Location: Big Sandy, WY
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Quote:
you don't want to have to think to much about the proper use of the controls, you need to just do it!
Yah, it should just be point and shoot. If you have to actually think about the necessary recovery steps that could be involved with a maneuver, then you should not go near said maneuver solo until its automatic. That's what keeps a pothole from becoming a crater.
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  #140  
Old 06-18-2012, 01:13 PM
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Space Cadet Space Cadet is offline
 
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Because of a very specific, personal request by another forum member, I've agreed to post an update on my test progress.

Since my last post, I have had a discussion with Van's, completed another inspection of the plane, plus had an inspection of the airplane by two other sets of eyes (an IA and a mechanic together) just to be sure. No signs of any damage was found, and so I got back on the horse and went flying. I have completed all of my formal test program objectives, starting right where I left off in the stall and cg testing, and am now within 1 hour of completing my 40 hours of Phase 1 testing. No issues have been uncovered with the plane.

I'm not sure I will continue on with this forum so please do not reply to this post.
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