Are positive snaps in the Advanced pattern Avalanche zero's?

[Atwood, Mark]

I would argue that it "can" be done...but that it would require that much more aggressive of an attitude change to make a break.  I know I always did an outside snap just because it presented better...probably for that reason without knowing it.

-M


-----Original Message-----
From:	mike mueller [mailto:mups1953 at yahoo.com]
Sent:	Tue 8/12/2003 2:14 PM
To:	discussion at nsrca.org
Cc:	
Subject:	Are positive snaps in the Advanced pattern Avalanche zero's?

I was on RCU and I happened upon this post by Mark Novak from Belgium. It's in reference to the 0's that CPLR received on his snap at the WC's.
 The snap roll has been discussed at length this season. (post # 45)
5B.4.3.5. SNAP-ROLLS 
A snap-roll is a rapid autorotative roll where the model aircraft is in a stalled attitude. 
Snap-rolls have the same judging criteria as axial rolls as far as start and stop of the rotation and constant flight 
path through the manoeuvre. 
Since the model aircraft is in a stalled condition throughout the manoeuvre, the attitude and flight path must 
show a definite break before the rotation is started. If the stall does not occur and the model aircraft barrel-rolls 
around, the manoeuvre is zeroed. 
Snap-rolls can be flown both positive and negative. The same criteria apply. If the model aircraft returns to an 
unstalled condition during the snap, it is severely downgraded. 


The type of critical judging is not taking place in national or regional contests...probably a disservice to the pilots rather than a good to have gimme'. The extraordinarly rapid roll accelerated with rudder (hmm, reminiscent of IMAC and TOC flying) is no longer going to constitute a "stalled condition" and it never should have. Full size pilots have battled about high scores going to what really amounted to dirty rolls and would have more properly deserved to be zeroed. Without the stalled condition, the perfect exit upon heading amounts to squat. 

I guess it is better now to sacrifice a little in heading and exit altitude than to speed through the dirty roll looking pretty with a big goose egg to show for it. 

It seems correct. if Christophe even took a 3 or 4 on the snap..4/8 he would have a significant margin of lead at this time.

Mark



Now this has got me thinking about the Avalanche in the Advanced pattern.If one did a positive snap at the top than the score would have to be a 0. How could you stall a plane while diving into a snap? If this is correct than the only way to do this maneuver is with a negative snap. The rule book states that the snap is an option. I know that the snap issue has been beaten to death but I think this merits attention. Mike



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