[NSRCA-discussion] Trimming question

[John Ferrell]

My Guess:
The sum of the drag vectors is well above the vertical CG. You MIGHT be able 
to help the condition with really big wheels generating some drag down low. 
Its anybody's guess what the turbulance might trigger.

The wing is not lifting in knife edge, but it is still draggin'.

John Ferrell
http://DixieNC.US

----- Original Message ----- 
From: "John Pavlick" <jpavlick at idseng.com>
To: "NSRCA Discussion" <nsrca-discussion at lists.nsrca.org>
Sent: Friday, January 27, 2006 11:31 PM
Subject: [NSRCA-discussion] Trimming question


> Ok here's a good one. The owner of the L.H.S. asked me what I thought 
> about
> this and I couldn't come up with a good answer. He has a Hangar 9 Ugly
> Stik - the real big one. I can't remember exactly what it's called. Guess 
> it
> has a gas motor in it. It's big. He says he has it trimmed so it will fly
> inverted with just a very slight bit of down elevator (almost none). Ok, 
> so
> it's not nose heavy, maybe even a little tail heavy. Now, when he flies it
> knife edge (either side) it pulls severely to the canopy. I mean like it
> will fly a complete circle. It needs almost 3/4 down elevator to fly
> straight. It's beyond a mix - fix. He also says that it has a bit of roll
> couple when flying level (not knife edge) but it doesn't pitch severely up
> or down under these conditions. Any thoughts? I guess you can rule out 
> C.G.
> because if anything it should pull to the belly considering how it's 
> trimmed
> to fly level upright and inverted. I haven't flown it so I can't add too
> much more. He builds OK so I don't think there's anything way out of
> alignment, but again I haven't seen it yet so maybe there is. What should 
> I
> look for if I get my hands on it to try and help him?
>
> John Pavlick
> http://www.idseng.com
>
> --
> No virus found in this outgoing message.
> Checked by AVG Free Edition.
> Version: 7.1.375 / Virus Database: 267.14.23/243 - Release Date: 1/27/06
>
> _______________________________________________
> NSRCA-discussion mailing list
> NSRCA-discussion at lists.nsrca.org
> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
>