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Re: tail planes

Subject: Re: tail planes
From: John Cliff <john@crixbinfield.freeserve.co.uk>
Date: Wed, 25 Apr 2001 18:37:21
Forwarded from the bounce bin. Message is from
William McClellan <vzn0629q@gte.net>

**************************************************

In addition to what Tim Ward posted with which I concur, there is something
to be careful of.  The bushings that the stabilator tube runs in are subject
to binding with any misalignment which you really don't want - hard to take
out later. So if you start stressing or pre-loading the fuselage to remove
twist, then install the stabilator tube, then remove the mechanism used to
remove the twist, the fuselage then trying to return to its original
position, the bushings may become unaligned and bind.   Do your measurements
and see what amount of twist you can live with.  Very important, establish
your datum planes being the bottom fuselage including the cockpit module,
the wings and the stabilator to make sure all are parallel.  The tail being
vertical is important, but if close, it is second to these planes being
parallel.

I did take some of the twist out when I installed the rear bulkhead.  I then
installed the stabilator tube with no binding. Then when putting on the top
fuselage, make sure no misalignment of the bushings.


Bill McClellan
A164



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