[NSRCA-discussion] Snaps

[Ed Alt]

Jerry:
It's all on the AMA website in the Flying and Judging Guide for Scale Aerobatics.  See section 8.9.3 and 8.9.4  The presentation being referred to is probably from their judging clinics, but you can get the idea from the F&J Guide.  I attended one of the first judging seminars that Ray Rose put on and there was plenty of discussion about snaps and the fact that some displacement was inevitable and by itself, not necessarily a cause for downgrade. Yeah, it's a conflict with the other criteria about maintaining maneuver geometry, but I think there can be descriptions written to deal with that.

Really big displacements are an indicator of other problems that probably mean that a snap didn't really happen, such as barrel rolling or only partial auto-rotation during the roll.  A slow developing snap will exhibit alot of displacement for example.   I haven't seen any updated IMAC judging school materials, so whether they still teach that displacements during a snap aren't automatically downgradeable or not is unclear.  I think that if you look at what they do have in the F&J Guide, it provides pretty good guidance on how to tell that a snap probably happened at least.  It points out stuff like watching what the nose does re. departing from the flight path, not whether the tail is describing a cone shape.  You can get the tail to cone just using aileron and rudder alone - that's not a snap.  Snaps are tough to deal with in the rules and on the flight line.  It's just my opinion, but I think that the Scale Aerobatic rules are better defined in this particular area.


Ed
  ----- Original Message ----- 
  From: Jerry Stebbins 
  To: Discussion -NSRCA 
  Sent: Friday, July 07, 2006 9:19 PM
  Subject: [NSRCA-discussion] Snaps


  It would seem that if IMAC has a better "definition" or "presentation" that helps shed some sunshine on this quandry---we should get it to Don, and have him certify it, or refute it. Should be some common ground in there. At least that way there may be more common ground developed to find an approach to getting a definable standard.
  By the way I am an IMAC member and have never seen this presentation,---maybe would have helped my judging perceptions.
  Jerry


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