Graeme,
I intend to use the modification designed by Bob Berbue. I can
forward you on some photographs if that will help.
Paul
On 10/8/07, Graeme Smith <gcsmith@flyer.co.uk> wrote:
> Paul,
>
> Having suffered an overcentre locking failure, I can agree with your
> sentiments. I agree that a taildragger configuration would be a great
> improvement, do you have a suitable design/approved mod? I heard that the
> PFA were not approving any more of the 'Swiss' modification until feedback
> from the ones that have already been implemented. Do you have any others in
> mind?
>
> Regards,
> Graeme Smith
>
>
> On 07/10/2007, Paul McAllister <paul.the.aviator@gmail.com> wrote:
> paul.the.aviator@gmail.com>
> >
> > Hi all,
> >
> > As some of you may recall I had an incident where my port out rigger
> > didn't latch. I did some work on it this weekend and discovered that
> > the head of a castellated nut had been catching the side of the W21
> > outrigger plate.
> >
> > If you look at the drawing on the bottom left hand corner on page 9-23
> > of the manual you will see that a AN4-11 drilled bolt passes through
> > the top of the outrigger leg OR1 attaching it to OR4. The AN4-11 bolt
> > is fitted with a AN310 castellated nut.
> >
> > What happening was that there was enough play where the bolt goes
> > through the OR4 latch arm to allow OR1 to twist sideways so that the
> > nut catches on the side of the W21 outrigger plate.
> >
> > What I did was to shorten the AN4-11 drilled bolt by 2mm and use a low
> > profile castellated nut, I believe that they are designated AN320 (not
> > certain). In addition I fitted another AN960-416L washer in the slot
> > of OR1 to take up the slack between it and the OR4 latch.
> >
> > All seems well now, but I would encourage everyone to take a look on
> > the inside of there W21 outrigger plate to check for signs of
> > catching.
> >
> > I intend to fit a micro switch to detect gear down and locked, but I
> > am afraid to say the the ultimate solution will be to convert my
> > aircraft into a conventional tail dragger. Another instance of the
> > outrigger not locking or the main gear over center lock failing is
> > dangerous content by MailScanner, and is
> > believed to be clean.
> >
> >
> >
>
>
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