[NSRCA-discussion] Snaps

Mon Sep 8 10:37:37 AKDT 2014

Well, I can only conclude from the comments that you need to leave the snaps and integrated rolls to the pros flying and judging IMAC. Make pattern less controversial and just get rid of them both.   ;-)

To: nsrca-discussion at lists.nsrca.org
Date: Mon, 8 Sep 2014 14:30:48 -0400
Subject: Re: [NSRCA-discussion] Snaps
From: nsrca-discussion at lists.nsrca.org

I'm surprised no one mentioned the half cuban 8 with integrated rolls at about 6:50 in the video.

Date: Mon, 8 Sep 2014 10:55:09 -0700
To: rpasto513 at gmail.com; nsrca-discussion at lists.nsrca.org
Subject: Re: [NSRCA-discussion] Snaps
From: nsrca-discussion at lists.nsrca.org

At a recent contest, I did the Master's 1 1/2 snap with a nice pitch up of the nose and one judge ask me if it was supposed to pitch up like that? !!! 

On Mon, Sep 8, 2014 at 10:01 AM, Patrick Harris <harris7148 at gmail.com> wrote:

Here's Patty Wagstaff. At 2:35 and 5:40 they look a lot like what we do. 

https://www.youtube.com/watch?v=IpNOMRdtmtM

On Mon, Sep 8, 2014 at 9:55 AM, Bob Pastorello via NSRCA-discussion <nsrca-discussion at lists.nsrca.org> wrote:

Nuthin' snaps like a Bucker!!!  :)

On Mon, Sep 8, 2014 at 11:46 AM, Patrick Harris via NSRCA-discussion <nsrca-discussion at lists.nsrca.org> wrote:

Here are some interesting full sized snaps:

https://www.youtube.com/watch?v=6ETc1mNNQg8

https://www.youtube.com/watch?v=ruQgFocNJh0

https://www.youtube.com/watch?v=J7LDaSq6E30

On Mon, Sep 8, 2014 at 8:47 AM, James Hiller via NSRCA-discussion <nsrca-discussion at lists.nsrca.org> wrote:

We accommodate / adapt to rules in many ways. Interesting review of full scale. Wings make a difference. I got a lot happier as I transitioned from a 2:1, 12% wing to a 2 1/2 :1, 14%.
Jim

From: NSRCA-discussion [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of John Ford via NSRCA-discussion
Sent: Monday, September 08, 2014 4:58 AM
To: w d; General pattern discussion
Subject: Re: [NSRCA-discussion] Snaps

Hard to believe no discussion on a snap thread…that's a first. 

I watched the French Connection video with interest since they were very much at the top of the airshow list at around the time I was into full-scale aerobatics. 

We always figured that FC was able to pull off the "snap-on-the-deck" stunt because of the CAP-10's airfoil, which was closer to a glider airfoil than to an acro airfoil. Hence the deep wallow before the autorotation that results in the displacement of the flight path…to their advantage in this case. They used to do the two-plane formation snap on take-off, which always impressed me to no end.

If you watch Patty Wagstaff do a snap, with a thin, fully-symetrical airfoil and added full-span stall strips, her snaps become virtually identical to the FAI "twinkle snap". A Pitts S-1 is somewhere in between. The Citabria, needing full "con" ailerons, will pause for a split second, then autorotate in a flash with surprisingly little displacement. So 10 different planes will all autorotate differently, some imperceptibly. Accordingly, many full-scale pilots snap with ailerons "pro" instead or with the traditional ailerons "con". Heck, most full-scale competitors get 10's on spins and they are literally flying/slipping the plane down the spin…never having stalled at all. 

So for pattern, if it slows down for a micro-second, and the tail describes a cone, I call it good, even though I still can't do it that well myself...

John

On Sep 7, 2014, at 1:25 PM, w d via NSRCA-discussion <nsrca-discussion at lists.nsrca.org> wrote:

well since masters is know taking on traditional FAI maneuvers" rollers and such".. the twinkle snap will become the standard in AMA ...I will be doing one in the upline snap from now on...

gary  

On Sun, Sep 7, 2014 at 9:38 AM, Chuck Hochhalter via NSRCA-discussion <nsrca-discussion at lists.nsrca.org> wrote:

Well Don, that really didn't fire up a lot of enthusiastic discussion. I guess after Nats it's don't ask don't tell.

C

Sent from my iPhone

On Sep 6, 2014, at 6:28 PM, flyintexanmark at gmail.com via NSRCA-discussion <nsrca-discussion at lists.nsrca.org> wrote:

Very revealing. Thanks Don.

Regards,

Mark Hunt

----- Reply message -----
From: "Don Ramsey via NSRCA-discussion" <nsrca-discussion at lists.nsrca.org>
To: "'General pattern discussion'" <nsrca-discussion at lists.nsrca.org>
Subject: [NSRCA-discussion] Snaps
Date: Sat, Sep 6, 2014 3:57 PM

I just watched CPLR and Mayer doing snaps on video. The entire video is their snaps.  If you are interested, here’s the link http://www.rcgroups.com/forums/showthread.php?t=1443881&page=2
about half way down the page.  A good exercise is to watch both videos and record your thoughts. Then get a thin piece of straight wire and overlay the track of the models when they snap. See if your views change. The ability to replay a short segment is a help.

Especially watch the snaps at 1:40 for CPLR and about 2:00 for Mayer. What do you think? Note the post just after Mayer’s video.

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-- 
Bob Pastorello
rpasto513 at gmail.com 
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