Dear Bob,
The pins I'm talking about are the ones that go through the top of the
tailplanes,
through the torque tube and out the other side. Maybe my terminology is not
correct, but the pins I have (and one of which is broken) have a ring at the
top which pulls on a spring loaded rod than runs up the centre of the pin, and
when either pulled or pushed it allows a couple of little ball bearings at the
pin's tip to retract so that you can then pull the pin out/push it in. I thought
that was a pip pin - I've not heard of a 'permament pin'. Can you tell me
more?
By 'upgrading' I mean the process by which some people have changed these 1/4"
pins to 5/16" pins and reamed out the holes accordingly - 'oversizing' you call
it.
Also I do understand about the fact that these pins are only intended to ensure
that the tailplanes don't slide off - and that they shouldn't carry torque as
that may dislodge the bush embedded in the tailplanes. Elongating the holes
(circumferentially
- not spanwise) in the torque tube helps in this respect. I
understand that torque is only supposed to be transmitted via the drive pins and
plate at the root end of the tailplanes.
I think we're all talking about the same thing - just my terminology may be
incorrect!
Thanks for the comments and for the offers of help from everyone else - what a
great forum this is.
David
-----Original Message-----
From: R.C.Harrison [mailto:ptag.dev@ukonline.co.uk]
Subject: RE: Europa-List: Pip-pin wanted
Hi! David /Ferg.
I am intrigued about PIP PIN UPGRADING? The Only upgrading I know of is the
1370lb spar 1/2" pins replacing 3/8" pin originals or the oversizing of
Torque Tube Drive Pins which are permanent pins not "Pip Pins".
The pip pins holes in the tail plane bush are supposed to be elongated
radially to ensure they DON'T act as drivers on the inner tail plane bush
when slop develops between the two tail plane halves.
Bemused Bob Harrison G-PTAG
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com]On Behalf Of Fergus Kyle
Subject: Re: Europa-List: Pip-pin wanted
dAVID,
I have one, because of upgrading. Jenny comes over this week.
Let me know.
Ferg
----- Original Message -----
From: "Cripps, David" <david.cripps@spsystems.com>
Subject: Europa-List: Pip-pin wanted
<david.cripps@spsystems.com>
>
> Help!
>
> The spring mechanism in one of my pip-pins for my Europa Classic tailplane
came apart when I was trying to pull the pin out. Although I've now got the
pin out it is clearly no use and needs replacing. New ones appear to be
massively expensive (>50GB pounds each).
>
> Does anyone who has drilled out their torque tubes to take the new,
upgraded, larger diameter pip-pins have an old, smaller diameter one to
spare?
>
> Yours hopefully
>
> David
> GBWJH
>
>
> Visit SP at stand J06/L01 at the JEC Composites Show, Paris, 1st-3rd April
2003
>
>
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Visit SP at stand J06/L01 at the JEC Composites Show, Paris, 1st-3rd April 2003
**********************************************************************************************
All sales of goods are subject to the terms and conditions of sale (the
Conditions)
of SP Systems (the Company) which are available on request from the Company
or may be viewed on our Website (http://www.spsystems.com).
Any advice given by the Company in connection with the sale of goods is given
in good faith but the company only warrants that advice in writing is given with
reasonable skill and care. All advice is otherwise given subject to the
Conditions.
The contents of this message and any attachments are confidential and
are intended solely for the attention and use of the addressee only.
Information contained in this message may be subject to legal,
professional or other privilege or may otherwise be protected by other
legal rules. This message should not be copied or forwarded to any other
person without the express permission of the sender. If you are not the
intended recipient you are not authorised to disclose, copy, distribute
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