[NSRCA-discussion] Snap (lesson learned)

[Jay Marshall]

But if the tank is on the CG, and the snap is around the CG..........?

-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Mike Hester
Sent: Tuesday, July 04, 2006 11:00 AM
To: NSRCA Mailing List
Subject: Re: [NSRCA-discussion] Snap (lesson learned)


> 4. "Burying the Snap" by over controlling will eventually put you in a
> situation that will score poorly.
>

And if it's a negative snap, as I found out the hard way, you may break 
something loose.

I had my plane snapping hard...and I mean HARD. I kept shaking my head, but 
everyone around me kept saying "NO don't tone it down, it looks awesome and 
you won't zero it, leave it alone!" LOL (It did always come out on heading 
and wings level, it was just evil looking).

So, I had a really good round going, and "went for it".....as in, went in 
too fast, and buried the controls. I'll say this: there was no denying it 
was a snap. But that loud "crack" could be heard in the next county. That 
plane went from about 70 mph to oh.....3 or 4....LOL....almost instantly. 
Like a 45 degree down warp speed blender. If some snaps have been checked at

14 Gs, this one was over 20. EASY.

Needless to say it over rotated, and as I came out of it, I wondered what 
was going to fall off. It felt wierd and the next couple manuevers went 
fine. Then I dead sticked and had to abort the flight.

Tank broke loose, cutting both lines and filling the nose of the plane with 
at LEAST 8 ounces of fuel. Nothing structural except a couple of very tiny 
cracks in the canopy (love those carbon canopies!) So I drained my plane, 
set it in the sun, put it all back together and flew the rest of the 
rounds.....with a far more tame version of the snap.

So, I learned my lesson. I'll satisfy the judges to an extent, and beyond 
that, a snap is a snap and every judge should know what one looks like, you 
shouldn't have to break your plane to do it. Luckily all I lost was some 
rubber bands and few ounces of fuel. At least I got more than a few jokes 
about it =)

-Mike 

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