Glenn,
The pip-pin holes are in the torque-tube, which has the round-holed TP6
around it. It is the TP6 that retains the pip-pin.
Regards,
Jeremy
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of glenn crowder
Sent: 13 July 2007 20:36
Subject: Europa-List: What stops the pip pin from falling out after Mod 73?
What I can't understand is after ovalizing the pip pin holes in the
torque tube, what will then stop the pip
pin from just sliding out. Am I missing something here? If the pip pin
balls line up with the ovalized area,
I can't see why they won't just potentially slide right out if given a
chance.
2. On Classics and XS, ovalise the pip pin holes in the ends of the
tailplane torque tube to prevent the pip-pin picking up actuating torque
loads. Add an extra pip-pin recess of an improved design to each tail
undersurface which will provide a reliable secondary retention system to
prevent the tailplane half moving outboard if the sleeve should become
disbonded. In the process of forming the new pip-pin recesses, key the
sleeves into the structure to help prevent them becoming disbonded. Pip-pin
will still enter tailplane from above. Recess in bottom surface can be
filled afterwards for cosmetic purposes leaving tailplane looking as
previously. Alternatively, the Europa club mod for improved sleeve retention
can be incorporated at build.
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