[NSRCA-discussion] [F3A-Discussion] snaps

[Dr Mike]

Yes that is correct, thanks Matt.

Mike 

 

From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of
rcmaster199 at aol.com
Sent: Sunday, July 04, 2010 6:22 PM
To: nsrca-discussion at lists.nsrca.org; f3a-discussion at lists.f3a.us
Subject: Re: [NSRCA-discussion] [F3A-Discussion] snaps

 

The F3A maneuver description may be inadequate and/or inaccurate, however
that doesn't much matter for the judge who has the ardeous task of
deciphering the snap. The description stands as is for this cycle and that's
how the World's judges will judge them to the best of their ability next
year. I urge all judges that judge F3A Semis and Finals at this year's
Nats/Team Selection contest to take heed of FAI description (not AMA) and
judge accordingly.

 

In essence, Snaps should not zeroe'd as easily as they once were; far cry
from where it was just a couple years ago. I believe that's the main reason
the rule was written as indicated. 

 

Mike's point I think deals with bringing the Snap back out of hibernation
such that folks get a chance to re-read it and re-hash just in time for the
Team Selection; fresh in one's mind so to speak

 

Matt K

 

 

-----Original Message-----
From: Woodward, Jim R (US SSA) <jim.woodward at baesystems.com>
To: 'f3a-discussion at lists.f3a.us' <f3a-discussion at lists.f3a.us>;
'nsrca-discussion at lists.nsrca.org' <nsrca-discussion at lists.nsrca.org>
Sent: Sun, Jul 4, 2010 4:27 pm
Subject: Re: [NSRCA-discussion] [F3A-Discussion] snaps

Mike, I'm replying from a blackberry without the benefit of the rulebook in
front of me. I thought these were called "Flick Rolls" now? I don't think
any of us are equipped in the context of judging a 0.5 second manuever to
determine if is "stalled" or "unstalled." I think Jerry Budd posted on the
nsrca list the last dissertation on snaps, which from memory, pretty much
proved the planes are not stalled.

Given you posted this, what do you want to see happen? Thx Jim W.

 

  _____  

From:  <mailto:f3a-discussion-bounces at lists.f3a.us>
f3a-discussion-bounces at lists.f3a.us <
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To: 'General pattern discussion' < <mailto:nsrca-discussion at lists.nsrca.org>
nsrca-discussion at lists.nsrca.org>;  <mailto:f3a-discussion at lists.f3a.us>
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Sent: Sun Jul 04 17:11:46 2010
Subject: [F3A-Discussion] snaps 

Given the abundance of snap maneuvers(7 maneuvers, 9 snaps) in the F-11
pattern, I feel compelled to give the exact description via the F3A
rulebook:

 

A snap-roll is a rapid autorotative roll where the model aircraft is in a
stalled attitude, with a continuous high angle of attack.

 

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 is
concerned.

 

At the start of a snap-roll, the fuselage attitude must show a definite
break and separation from the flight path, before the rotation is started,
since the model aircraft is supposed to be I a stalled condition throughout
the maneuver.  If the stall/break does not occur and the model aircraft
barrel-rolls around, the manoeuvre must be severely downgraded(more than 5
points).  Similarly, axial rolls disguised as snap-rolls must be severely
downgraded(more than 5 points)

 

Snap-rolls can be flown both positive and negative, and the same criteria
apply.  The attitude(positive or negative) is at the competitors discretion.
If the model aircraft returns to an unstalled condition during the
snap-roll, the manoeuvre is severely downgraded using the 1 point/15 degree
rule. 

 

 

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