Conclusion.... don't put the balljoint in the centre :-)
My doors close flush every time with no fore/aft force required to get
them into place. I just copied the position on ZK-UBD which also has
nicely closing doors. Bob Jacobson's centre pin mod does a marvellous
job of making the doors close up flush to the fuselage.
Tony
-----Original Message-----
Subject: Re: Roll Trim Tab
I`d heard that too, but don`t understand the mechanics of it. With the
bottom socket mounted further out, I would have thought there would be
more
"overcentre" action to actually push the rear edge down rather than up.
Duncan McFadyean
-----Original Message-----
From: Roger Sheridan <rogersheridan@btinternet.com>
<kbcarpenter@worldnet.att.net>
<europa@avnet.co.uk>
Date: Monday, July 02, 2001 12:21 PM
Subject: RE: Roll Trim Tab
>
>
>-----Original Message-----
>One factor I found important in preventing the door rising at the back
on
>closing was to keep the lower attachment point as low as practical
within
>the
>trough... ie away from the outer surface of the fuselage. If you don't
get
>it
>close the the bottom of the trough then the back of the door will rise
as
>you
>close it.
>
>Tony
>
>-----------------------------------------------------
>
>Dear Tony,
>
>Ironically I have found the opposite to you and fitted the lower ball
joint
>as close to the outer surface as possible without fouling the door.
>The theory is that the strut's force is then virtually parallel to the
skin
>when the door is closed and this will minimise the force perpendicular
to
>the skin which pushes the top rear corner of the door up.
>My other tip having fitted 3 pairs of doors (GKITS, N512SA & my own)is
to
>fit the struts before final gap adjustment around the doors as the
struts
do
>apply a twisting force which will affect the way the door sits.
>
>Cheers,
>
>Roger Sheridan.
>
>
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