Hi! Tony.
If you coil the cables correctly they shouldn't overlap and they should
stay outboard of the pins especially so long as they are crimped tight
on the nylon bush. Lots of chaps have used a pair of adjustment bottle
screws to ultimately tighten the slack and to be able to adjust the
lateral arc of the balance weight arm. Yes the heads of the pins need to
be facing forward.
Hope you are shortening the inboard ends of the nylon bushes for
eventual use of the drive clamps without the need to dismantle it all
again!
Regards
Bob Harrison G-PTAG Europa MKI/Jabiru 3300.
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Tony
Renshaw
Subject: Europa-List: Mass Balance Arm Cable Attach
<tonyrenshaw@optusnet.com.au>
Gidday,
I am studying my tailplane setup and wondering if it is normal to have
the
cables that stabilise the mass balance arm wrapped around the white
plastic
tubes in such a fashion that the looping creates an overlap on the back
edge of the plastic sleeve, held in position under tension only by the
small protrudence of the pin base? Now I am unsure which way the pins
should be, but I have decided that I want the heads of my pins forwards,
as
I have little holes adjacent in the rear tail bulkhead that will be
accessible from another hole in the sternpost, so that I can use a long
rod
to tap them out again in the future, plus also drive them home from
within
the tail. This is probably the normal way anyway, to have the heads
facing
forwards, but I haven't reviewed the manual on this as I have my own
intentions anyway. So, I do however have the problem that if the cable
was
to flex on one side, it could enable the slack side to slip inboard over
the tail of the pin. Whether this would ever happen is probably the
question to ask, as it would mean that the other cable under tension
would
have to stretch to allow the other to go slack. I suppose this then begs
another question which is how tight to make these cables. I have
turnbuckles, so I can tweak them until they are tight as I like. Is
there
any advice as to how tight is enough an not too much. I suppose the
tighter
the less likelihood of further stretching which is what I am trying to
negate with a lateral load, which is of itself a questionable load
anyway.
How am I going to fly my plane in such a fashion that I get a lateral
load
of sufficient strength that it allows one cable to stretch and the other
to
go slack and slip over the tail of the pin. My aircraft probably would
break elsewhere. I am simply seeing the length of my pins as being
apparently inadaquate to also act as a containment
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