Hi John,
Re Key Sanding, I suppose the purpose is to legitimise why we do it, and its
because
Ive been doing work on the very thin sandwich skin of the fuselage. The
cloth in question is so thin, and I believe any strong Grit will compromise the
structure, so it got me thinking about what the goal really is. I reckon the
goal is to abrade the matrix resin, without compromising or ideally even
touching
the entrapped glass, and in essence increasing the surface area in the process.
I then wondered academically whether there was any difference in the surface
area between one Grit and another, and I dont believe there is, SO, when
key sanding, any grit will do if it roughens the surface and dulls it off. Thats
all, just an academic exercise, but I know there are smarter guys than me
on the list, so I asked.
re: Instrument Panel Venting, I have kindly been sent a few photos but am always
desiring seeing how others have done things, so yes, Id love to get some photos.
Thanks John.
Regards
Tony Renshaw
On 30 May 2014, at 9:55 pm, John Wighton <john@wighton.net> wrote:
>
> Tony,
>
> Not sure on where the surface area discussion is going - or the objective.
>
> Regarding the panel, l installed 2off fans in a carbon frame above the 6
> pack/EFIS
hybrid panel in G-IPOD. This is the highest point hence hot air will collect
here. It performs the de-mist function in the cockpit (no other heater
is fitted).
>
> I can send some pics if needed.
>
> Regards
> John
>
> --------
> John Wighton
> Europa XS trigear G-IPOD
>
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> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=424022#424022
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