Bob, Dale, Bob, Tony, Graham . . . . . ;
Mucho thanks for the input. Its always good to get a bunch of "Been there
done that" type input to an issue that arises when I'm deciding on how to
approach something. Nothing like a bunch of positive reinforcement to keep
things going.
Back out to the garage!
Steve Hagar
A143
Mesa, AZ
----- Original Message -----
From: Bob
Jacobsen
Subject: Re: Tailplane to root
fairing alignment, -and servo pins
Steve,
I have had the delightful task of ripping out my trim tabpins
twice. First
to correct a misalignmet like you have, then to replace them with the
updated unit.
To remove just grind away the covering layers of bid then heat the plates
(I
use a heat gun). When the glass sofens you can pull off the
plate with a
pair of pliers.
The tabs are very easy to align when on the plane. Get
everything set up
and cover the plate with flox. I used bits of balsa wood jamed
inbetween
the fuselage and plate to hold it tight until the flox dries, then remove
the stab and do the bid thing.
I also niticed a bit of difference between the fuselage and root fairings,
but always went with the digital level and my plane flys hands off so I
must
have done something right.
Bob Jacobsen
A131
From: "Steve Hagar" hagargs@earthlink.net
Subject: Tailplane to root fairing
alignment, -and servo pins
Date: Sat, 10 Nov 2001 8:40:13 -0800
I have started jumping around on doing mechanical assembly of the
fuselage
components/systems. It seems whenever I get into something one little
item
keep me from completion so rather than wait for a part or information I
go
to
another part. This week I find myself at the tail end.
Upon installing the tailplanes it appears that the angle of attack of
one
is greater than the other. This appearance stemming from the
alignment of
each tailplane root with the fairing moulding of the fuselage. The port
side
angle of attack looks greater when compared with the moulding on
the
fuselage. This is especially disconcerting since I had spent
days many
months (years?) ago lining the left and right sides up when
constructing
the
tailplane assemblies.
However upon jigging up my digital level and measuring the aoa
of each tailplane to the best of my ability, I find that I am
within 0.1
degree between left and right. My assumption is that the molding is off
slightly
and I may have a small shape variance between the leading edge profiles
near the
molding giving the appearance of highly differing angles of
attack.
Has any one else seen this on their fuselage moulding? It is
disconcerting but I am not planning on changing anything as the level
doesn't
read to better than 0.1 so I am within the capability of my
tools. Any
thoughts out there on this?
A second item:
I find that my left and right servo tabs are not lining up (no
not in the same direction as the apparent difference of the tailplanes
noted
above!). Though however this is a good thing as the drive
pins need to
come out to implement the installation of the beefier units
that I almost
had to beg Europa to send me. Do any of you who have
performed the
retrofit have any tips or shortcuts for the swap out to to
enhance
alignment. I plan on trying to use the T bar to reset
these. Any
tips on ripping the old units out to preserve the planar alignment of
the
pin
plate?
Steve Hagar
A143
Mesa, AZ
(finally some good building weather, I can now leave the garage
door open)
--- Steve Hagar
--- hagargs@earthlink.net
--- Steve Hagar
--- hagargs@earthlink.net
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