Sue,
I agree with the guys...
When in doubt, have the pin and socket measured and checked.
In some aircraft the builder would find that by reaming the hole, the
wings rigged easier. Of course, over time the pin could move a bit and
as a result the pin and socket can wear a bit more over time.
In a properly built Europa the wing will move fore and aft a bit at the
tip because the front pin is not up hard against its socket and the spar
does bend a bit. However, you should not be able to see the pin move in
the socket when an assistant moves the wing tip. If the pin moves
enough in the socket that you can see it, you may in fact have either a
worn wing pin hole, pip pin or socket hole.
I strongly recommend you remove the wings and use a micrometer and check
the wing pin hole, pip pin and socket hole for wear. I would think that
it should be no more than a 3-4 thousandths difference from 1/4 inch pin
and 1/4 inch holes (the mil spec pin diameter is .2485 inches and the
balls go out to .289 inches). So 7-8 thousandths total slop is about
your normal tolerance for a proper fit between the three items. Any
more and the pin starts getting pretty sloppy and the pin holes or the
balls on the pip pin could be compromised.
Just check it and be sure. It is not hard to change out the wing pin,
pip pin or socket hole.
Regards,
Bud Yerly
----- Original Message -----
From: David Joyce<mailto:davidjoyce@doctors.org.uk>
To: europa-list@matronics.com<mailto:europa-list@matronics.com>
Sent: Sunday, June 23, 2013 5:42 AM
Subject: Re: Europa-List: wing lift/drag pins
<davidjoyce@doctors.org.uk<mailto:davidjoyce@doctors.org.uk>>
Sue, Not quite able to picture exactly what you describe,
but if in doubt, and in any case with a newly purchased
homebuilt plane there is much to be said to having an LAA
inspector look it over. You will in any case need to
establish a relationship with one to get your maintenance
signed off. LAA engineering will give you a list of
inspectors or you could ask on this list for
recommendations if you give your home area. And while you
are at it if you haven't already joined I strongly
recommend joining the Europa Club
(www.theeuropaclub.org<http://www.theeuropaclub.org/>),
which offers
wide reaching technical support and all sorts of other
support.
Regards, David Joyce, G-XSDJ
sue hyde
<hyde.interiors@btinternet.com<mailto:hyde.interiors@btinternet.com>>
wrote:
> Many thanks for the reply but I misled you with my
>description. The play I am talking about can be felt on
>the tip of the main wings when manouvering the aeroplane
>and appears to be on the rear drag pin/pip pin area. The
>socket is secure to the fuselage and the drag pin is
>secure to the wing. there is just a little play in the
>swivel of the socket
>
>
>
> ________________________________
>From: David Joyce
<davidjoyce@doctors.org.uk<mailto:davidjoyce@doctors.org.uk>>
> To: europa-list@matronics.com<mailto:europa-list@matronics.com>
Sent: Saturday, 22 June
>2013, 19:06
> Subject: Re: Europa-List: wing lift/drag pins
>
>
><davidjoyce@doctors.org.uk<mailto:davidjoyce@doctors.org.uk>>
>
>
> Sue, the socket is able to pivot in a wing flapping mode,
>but otherwise should be very tight in its fore Nd aft
>retaining shoulders and they should be absolutely rigidly
>fixed to the underlying wood & composite mount. It does
>not sound entirely healthy from your description and I
>would strongly advise you get an inspector to look at it
>before you take to the air.
> Regards, David Joyce, G- XSDJ
>
> sue hyde
<hyde.interiors@btinternet.com<mailto:hyde.interiors@btinternet.com>>
wrote:
>> I have recently purchased a Europa and there is a little
>>for/aft movement on the pip pin socket mount . Is this
>>usual?===============
http://www.matronics.com/Navigator?Europa-List<http://www.matronics.com/N
avigator?Europa-List>
http://www.matronics.com/contribution<http://www.matronics.com/contributi
on>
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