Hmm..good idea. I'll be staring at the items tomorrow to try to figure out
how to proceed..
_____
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of GRAHAM
SINGLETON
Sent: Friday, August 22, 2014 2:54 AM
Subject: Re: Europa-List: Tinnerman washers on cowling
Countersink the cowling enough to sit the Twasher flat on the cowl then fill
to level it off
and leave a recess for the rim of the washer.
Easy to do if you are obsessed with the boundary layer. Probably it is
already disturbed
by the thrashing propeller anyway so nice appearance is the only advantage.
Graham
_____
From: Greg Fuchs <gregoryf.flyboy@comcast.net>
Sent: Friday, 22 August 2014, 10:45
Subject: RE: Europa-List: Tinnerman washers on cowling
I am in fact- ruminating about recessing the entire face of the tinnerman. I
guess it's good to know I may be overthinking this one.
Regards, and
Good luck with the final stages of your build,
Greg (back on track)
_____
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Fred Klein
Sent: Thursday, August 21, 2014 2:42 PM
Subject: Re: Europa-List: Tinnerman washers on cowling
Greg.I believe that conceptually, the tinnerman washer is designed to fit
into a chamfered hole somewhat larger than the diameter of the fastener.this
will automatically bring the perimeter surface of the washer down to the
surface of your cowl.
I take it that when you use the word, "flush", this is what you mean, given
that the thickness of the tinnerman is so very thin.
If, on the other hand, you're ruminating on whether or not to recess the
entire face of the tinnerman, I'd venture to opine that you may be
"overhanging".
(Whoops.sorry.that was meant to be "overthinking", not "overhanging".)
I have never examined a stock Europa cowl, but I do believe it is solid FG,
not a foam core sandwich.
Fred
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