As for the BUMP, if you use some sponge rubber (dish washing, seat bases
etc)
Cut some pieces about 10-15mm bigger than the hole all round, and another
piece
For the skin surface, wrap the foam in lunch wrap plastic and put it in the
hole
After you do your layup, and then the large skin piece over the hole, with
plastic again
And some heavy (4 or 5 kg) object, like a sand bag on top, will compress the
layups
Much the same as vacuum bagging would, it will generally push any excess
resin out past
The edge of the cloth, giving you a "glass like" very smooth compact layup.
I use this
Method for most of my glass work now where conformation into or onto a
complex shape would see a constant fight with the glass lifting creating
"bubbles" underneath. Four
Layers of bid done like this looks like about 1 layer thick
Hope this helps
Regards
craig
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of jglazener
Sent: Tuesday, 8 February 2011 2:25 AM
Subject: Europa-List: Re: Tailplane retention mod
Ian,
I have just been doing Mod 73. What struck me was that for this recess you
have to lap the bid onto the tailplane surface. If you then cover it with
two more plies, there is going to be a pretty substantial bump which will
inevitably influence the aerodynamics. It is also incredibly difficult to do
without making bubbles.
The top recess on the other hand only needs flox corners and can be trimmed
flush. Do you know why this is?
Best regards,
Jeroen Glazener
http://www.europaowners.org/forums/gallery2.php?g2_itemId=44165
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http://forums.matronics.com/viewtopic.php?p=329979#329979
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