Tony and all
I can't underestand what all the fuss is about in Retaining the cables.
We put them there because that was what was approved. What they have to do
most of the time is little -
When the fuse is standing vertical the weights may touch lightly on one side
or the other and friction zilch.
In a balanced turn it is the same.
It seems to me that the only time the weight may push firmly against the
limit structure is if one wing is being retarded enough to begin turning the
aircraft, say in entering a ground loop or it a wing hits something solid
when it could possibly break the structure. In this case you will be out of
action for some time anyway working on wing repairs. But you would have had
no time to experience any increased friction in the pitch control mechanism.
J R (Bob) Gowing, UK Kit 327 in Oz - and yes I did spend some time studying
structures.
----- Original Message -----
From: "Tony Krzyzewski" <tonyk@kaon.co.nz>
Subject: RE: Europa-List: Mikes Fears, Mod 70
>
>
> >>> Your fears are shared in my hanger as well. In that I am in the USA,
> I will take my new stronger mass balance arm to my trusty welder and
> have a cable attachment flange put on it. As you so wisely concluded,
> the cable installation was not designed well. The idea is fine, but if a
> builder can not do it well, it is a bad design. I installed the
> turnbuckles and feel that fixed the design problem.
>
> Your comments are reflected by some in NZ also and I know of three
> builders who, myself included, will be welding a cable attachment
> flange to it and using the existing turnbuckle tensioned stay wires on
> it. My father, who is a mechanical engineer, told me many years ago that
> if you want something to stay put make it out of triangles and that's
> what I intend retaining on my mass balance arm.
>
> Regards
>
> Tony
>
>
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