Date: Fri, 15 Dec 1995 19:24:38 -0800
From: brimmer@ix.netcom.com (Kenneth Brimmer )
Subject: COZY Conumdrum

The Problem:
    Ever since the first flight of my COZY 3 years ago I have always 
been a slight right wing heavy - meaning that at over 140mph it wants 
to bank right and this increases with speed.  After the first year I
added an extra shim to the bottom left wing attach bolt.  It still 
wanted to bank right at the higher speeds.  Three weeks ago, with the 
assistance of 10 other EZ drivers, I added another shim to the
bottom left outboard wing bolt.  Still there was no change in the right 
bank tendency, but now I had the yaw ball on the right.
     I made every measurement of the plane that I could think of and 
nothing seemed out of the ordinary. I would show the figures but I 
would be here all night.  I could not measure the alignment of the 
winglets and that is where I now think the problem might be.

The Solution???? 
    Unless somebody comes up with a better suggestion, or something I 
have not measured, I plan to pull the two extra washers I put on the 
left wing.  If this puts me back to a ball that is slightly to the left
of center that I seem to remember having when I first started flying, I 
will then add a shim to both the top and bottom of the right wing 
attach bolts.  This should correct for a misaligned winglet.  
     HAS ANY ONE GOT A BETTER IDEA? This is driving me crazy - I know 
there are a lot of guys that are flying with this problem but although 
it is not a big problem I want to solve it.  Like the guy who was 
struck by lightening I would like to be able to let go of the stick and 
know that the plane will fly level.  (I have a wing leveler
which would be no good without power.)
                 Would this be a COZY conundrum? 

          (post.office MTA v1.9.1 ID# 0-11525) with SMTP id AAA263
          Sun, 17 Dec 1995 20:04:02 -0600
From: TODDC@why.net (TODDC)
Subject: Re: COZY Conumdrum
Date: Sun, 17 Dec 1995 20:04:02 -0600

Being a rag and tube driver/mechanic for a while,  my first instinct is to
do as you discribe.  If this is how you adjust "wash" in a cozy.  I think
however you may have forgotten about the "other" flying surface.  The canard
may be just as capable of producing this kind of indication as the wing.
Since adjustments to the wing had no aparrent effect on the characteristic,
I would not think further adjustments would be beneficial.

Is there provision to "wash" the canard?  This may be worth a look.

keep us informed.

def.
madness - To continue doing the same things, expecting different results.

TODD C

At 07:24 PM 12/15/95 -0800, you wrote:
>The Problem:
>    Ever since the first flight of my COZY 3 years ago I have always 
>been a slight right wing heavy - meaning that at over 140mph it wants 
>to bank right and this increases with speed.  After the first year I
>added an extra shim to the bottom left wing attach bolt.  It still 
>wanted to bank right at the higher speeds.  Three weeks ago, with the 
>assistance of 10 other EZ drivers, I added another shim to the
>bottom left outboard wing bolt.  Still there was no change in the right 
>bank tendency, but now I had the yaw ball on the right.
>     I made every measurement of the plane that I could think of and 
>nothing seemed out of the ordinary. I would show the figures but I 
>would be here all night.  I could not measure the alignment of the 
>winglets and that is where I now think the problem might be.
>
>The Solution???? 
>    Unless somebody comes up with a better suggestion, or something I 
>have not measured, I plan to pull the two extra washers I put on the 
>left wing.  If this puts me back to a ball that is slightly to the left
>of center that I seem to remember having when I first started flying, I 
>will then add a shim to both the top and bottom of the right wing 
>attach bolts.  This should correct for a misaligned winglet.  
>     HAS ANY ONE GOT A BETTER IDEA? This is driving me crazy - I know 
>there are a lot of guys that are flying with this problem but although 
>it is not a big problem I want to solve it.  Like the guy who was 
>struck by lightening I would like to be able to let go of the stick and 
>know that the plane will fly level.  (I have a wing leveler
>which would be no good without power.)
>                 Would this be a COZY conundrum? 
>
>