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Re: Europa-List: Mod 70

Subject: Re: Europa-List: Mod 70
From: Dale <gdh@isp.com>
Date: Sat, 30 Apr 2005 13:39:49

Bob,
Why don't you come up with one of your "Fixes" a la Torque clamp and design 
a clamp that would fit over both the adjuster and 5 or 6 inches of the tube? 
It seems to me this would be a much simpler approach and permit us to retain 
our Turnbuckle adjusted cables!
Thanks,
Dale
----- Original Message ----- 
From: "R.C.Harrison" <ptag.dev@tiscali.co.uk>
Subject: RE: Europa-List: Mod 70


>
> Hi! Will
> The Mod 70 only allows 4mm side play.
> I understand that the part that broke ( Having been previously under
> extraneous circumstances!) was actually the adjuster screw thread,
> prompting further calculation of the members themselves. As to whether
> it was vertical stress or lateral stress I'm unaware, but the maximum
> 4mm side play may give the clue! With the cables tensioned correctly
> there's no side play.
> Regards
> Bob Harrison G-PTAG
>
>
> -----Original Message-----
> From: owner-europa-list-server@matronics.com
> [mailto:owner-europa-list-server@matronics.com] On Behalf Of William
> Daniell
> To: europa-list@matronics.com
> Subject: RE: Europa-List: Mod 70
>
> <wdaniell@etb.net.co>
>
> For those of us not covered by the PFA and who have a little difficulty
> and
> cost getting stuff from the UK.
>
> As I understand it the Tailplane mass balance arm broke at the lower
> strut
> where it joins by means of the adjustable connector to the TP torque
> tube.
>
> The issue is not the cables but the strength (or perhaps more accurately
> the
> fatigue resistance) of the mass balance arm in the face of vertical
> stresses.
>
> Could this be solved by simply reinforcing the mass balance arm?  For
> example by welding a sleeve over the lower tube.
>
> I share Fred's concern that continuous friction and sideways play even
> if
> only 8mm can not be a good situation .in an airplane context.
>
> Will
>
>
> -----Original Message-----
> From: owner-europa-list-server@matronics.com
> [mailto:owner-europa-list-server@matronics.com] On Behalf Of Fred
> Fillinger
> To: europa-list@matronics.com
> Subject: Re: Europa-List: Mod 70
>
>
>> "R.C.Harrison" <ptag.dev@tiscali.co.uk> wrote:
>> ...
>> but it doesn't mean that slides are a more
>> professional fix to our solution in the first place.
>
> I can agree there, if one will be able to feel the friction.
> Especially if one doesn't fly a lot of hours, it seems the
> counterweight will be in a permanent, "frictiony" rust condition.  I
> would have suggested Teflon, rather than phenolic.
>
> Reg,
> Fred F.
>
>
> 



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