I used bolt and half moon shaped inserts inside the tube to bolt everything
together. I got the idea from someone else I forget who I think Remo.
On a recent visit to Bud, he mentioned a much simpler method - an aluminium
tube with nut plates. He said the strength of the material is irrelevant
because it only serves to hold the nut plates. This is much more elegant
and easier solution that the half moon inserts which are tricky to put in.
Will
William Daniell
LONGPORT
+57 310 295 0744
On Wed, Jul 13, 2016 at 2:06 PM, ami-mcfadyean@talktalk.net <
ami-mcfadyean@talktalk.net> wrote:
> Same method (interference fit of the Factory oversize pins) worked for me
> too. About 500hours now since it was done. My Permit Inspector thinks
> there's a little within-tolerance play, but actually that's the
> small clearance in the torque tube bearings; I'd rather those bearings had
> some clearance than being tight, which they can be if not concentrically
> aligned.
>
>
> Duncan McF.
>
> ----Original Message----
> From: kjburns@btinternet.com
> Date: 13/07/2016 09:58
> To: "europa-list@matronics.com"<europa-list@matronics.com>
> Subj: Re: Europa-List: Re: Torque Tube enhancement after 400 hours
>
>
> When building the torque tube up the ream the holes to interference fit
> ... Or you will get movement .
> There is an oversize limit to how big you can take the pins if you get it
> wrong , but custom pins can be oversized (only up to that limit )to save
> your bacon, any movement built in will increases in service .
> 300 +hours on reamed / custom pins and no play ....advice taken from Andy
> Draper UK laa /one of the original Europa production engineers.
>
> Regards
> Kevin
>
> Sent from my iPhone
>
> > On 13 Jul 2016, at 10:32, GBWFH2010 <gaxuk2001@gmail.com> wrote:
> >
> >
> > I had the same problem after doing the Loctite 'mod' and had slightly
> more movement than your tailplane (after 300 hours). My inspector took
> advice from the LAA who stated remedial action had to be taken prior to
> Permit renewal.
> >
> > I decided I could not keep going trough this hassle so took the decision
> to do one of the torque tube clamping mods. I chose the one offered by Pat
> Tunney, whose help and assistance was superb, but I think Bob Harrison has
> also designed a very good mod. It was a swine of a job to do but I am
> really pleased with the results and after 200 hours there is no sign of any
> movement.
> >
> > Hope this helps.
> >
> > --------
> > Gordon Grant
> >
> > G-BWFH
> >
> >
> >
> >
> > Read this topic online here:
> >
> > http://forums.matronics.com/viewtopic.php?p=458119#458119
> >
> >
> >
> >
> >
> >
> &=======================
>
>
|