Or, for those of us that don't take off the tailplanes (except now every 10
hours) a bolt and a nut (or wing nut and securing ring)?!
Duncan McF.
----- Original Message -----
From: "Richard Holder" <rholder@avnet.co.uk>
Sent: Saturday, July 14, 2007 9:52 PM
Subject: Europa-List: Europa Tailplane - Mod 73 "new pip pin"
>
>> This is the reason why the instructions make a point of
>> not removing any bid/epoxy around the hole on the underside, in the
>> event the pip pin ball should not open on the underside of the new layup,
>> but instead buy
>> a longer pip pin. Removing bid/epoxy here would
>> defeat that secondary retention function of the mod.
>
> I am going to disagree with this. I think this requirement
> to "buy a bigger pip-pin" is unreasonable.
>
> Firstly, the amount of bid/resin required to be removed to
> get the pip pin to release its balls is tiny - see how big
> the balls are ! Maybe a ring of 25 thou of resin/bid would
> need to be removed.
>
> Secondly I understand that the pip pin BLS4R17N is
> somewhat out of fashion and that it and BLS4R07N (much
> shorter) are the only ones readily available.
>
> BLS4R17N is a 1 3/4 inch pip pin. There are 2 inch pip
> pins available in a different style but with much larger
> heads.
>
> The other factor is that the BLS4R17N are about 50 each
> from E(2004), so the Mod 73 fix is a few quid in resin and
> maybe an extra 100 plus VAT if a bigger pip pin is
> required (if they can find any).
>
> It may be that E(2004) can be persuaded to charge only
> cost price for the longer pip pins (around 20 - 25
> maybe). This problem is after all a design problem.
>
> Hunkering down down to avoid all the flack that will
> probably come my way.
>
> Richard
> G-OWWW grounded now for 5 weeks :-(
>
>
>
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