[NSRCA-discussion] Snap (lesson learned)

[Nat Penton]

The fundamental question:
       Is it a snap or is it a barrell roll .

If the rate of rotation exceeds that which can normally be expected ailerons 
only, it is a snap.

It seems the only problem we have is in our existing instructions and 
manuever definition.

----- Original Message ----- 
From: "Mike Hester" <kerlock at comcast.net>
To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>
Sent: Tuesday, July 04, 2006 10:00 AM
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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