Rowland,
It just doesn't fit without tweaking.
You will find that it may be necessary to file a small round in the skin
to clear the tail spring. Also the 7/8 inch hole is probably drilled
perfectly square yet the spring does not go through the tailpost
perfectly square and it is shown in the diagram in the manual page 23M-8
that it is angled through the tail post and impacts the lower skin. So
some adjustments are normal. Remember a small amount of space is
necessary for the Redux when it is all done and ready to go final.
You will also see that the XTW15 flat piece of metal for the 5/16 bolt
doesn't quite line up right, and some adjustments there are not uncommon
also.
Not speaking for the factory any longer, I can say what I do, and in the
case of the tail spring, I find the ply support pylon in the tail is
usually not tough enough for a couple ground loops, so I tend to build
the pylon all the way across the fuselage bottom as shown in Fig 11
Chapter 23M but make it just a bit wider. I do this so when the client
drills the hole for the AN5-12 bolt and finds he can't quite get the
alignment perfect, I come back in and install a 3/8 steel tube in the
bottom as a sleeve with Redux. What the sleeve is good for is it helps
when the bolt is pulled up. The sleeve prevents the bolt from crushing
the fuselage skin, and ply support when the bolt is properly tensioned,
it also gives more support for the bolt, retards bending of the bolt and
it will be less likely to be difficult to pull out the bolt, if the
spring is bent in a mishap...
Happy building,
Bud
----- Original Message -----
From: Rowland Carson<mailto:rowlandcarson@gmail.com>
To: Europa e-mail list list<mailto:europa-list@matronics.com>
Sent: Friday, August 23, 2013 5:07 PM
Subject: Europa-List: tailwheel arm fitting
<rowlandcarson@gmail.com<mailto:rowlandcarson@gmail.com>>
I've drilled the 7/8" hole in F10 for the tailwheel arm. I used
outside calipers to get the centre the correct 1" above the fuselage
bottom skin (that is, the OUTSIDE of the fuselage) and took care to keep
the bore of the hole parallel to the fuselage bottom. The bottom of the
hole finished up just clear of the curved bottom flange of F10.
The tailwheel arm XTW06 fits into the hole, but will not go far enough
forward for the hole at forward extremity of XTW06 to align with the
marked centre 160mm forward of the front face of F10, because XTW06
binds against the bottom of F10 & of the fuselage.
Do I need to
(a) enlarge the hole in F10 upwards?
(b) relieve F10 & fuselage at the bottom centre to clear XTW06?
Opinions, please!
in friendship
Rowland
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