Today's Message Index:
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1. 12:34 AM - Re: Hydrophobic coatings for Perspex? (John Wighton)
2. 02:59 AM - Re: 912ULS Airbox Water Intrusion (JonathanMilbank)
3. 03:12 AM - Re: Hydrophobic coatings for Perspex? (clivesutton)
4. 02:27 PM - Re: 912ULS Airbox Water Intrusion (budyerly@msn.com)
Message 1
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| Subject: | Re: Hydrophobic coatings for Perspex? |
Although not windscreen specific, I believe my hangar buddies (3 of 8 aircraft)
invested in a ceramic coating on their aircraft (Decathlon, Cirrus SR22 G5 and
a C172). The Cirrus is closest to the Europa construction-wise. That aircraft
was clean already (to my eyes) but it went through a very intense cleaning
before the Williams Ceramic Coat was applied (as in 3 whole days of detailing).
Aircraft now feels and looks great.
The Decathlon went to Cavendish Aviation at Earls Colne, still looks good but it
must be 3 years since it was treated.
C172 never looked any different, although I don't stroke that one so often (!)
I have some blemishes on my Europa screen (some caused by the R44 that had a rotor
strike at Glos in 2019). I'd be interested to hear the best way of getting
ride of these. I have polished car headlights to remove dullness and scratches
before but never the Europa transparancies.
--------
John Wighton
Europa XS trigear G-IPOD
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| Subject: | Re: 912ULS Airbox Water Intrusion |
When my aircraft used to have the Classic cowls with NACA air duct, before I fitted
the Nev Eyre cowls without such inlet, I always took the canopy and forward
fuselage cover with me if expecting to park outside somewhere. Each year one
of my friends took the aircraft away for a fortnight and left it outside in
the Scottish rain, which can often last for days. Seemingly the cover prevented
water from entering the NACA duct and airbox, possibly because I washed the
cover in a solution designed to waterproof tents.
The other route for potential ingress of water is the fuel tank breather tube on
top of the fuselage behind the cockpit and, for that matter, the fuel tank filler
cap if its O-ring seal isn't good and situated on top of the Classic fuselage.
Therefore if parking outside I wrap and tie something like a surgical glove
over both breather tubes. Thus far I haven't failed to notice and remove
the glove before flight.
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| Subject: | Re: Hydrophobic coatings for Perspex? |
Hi John, re: your screen repairs - I don't speak from any sort of experience or
expertise on the matter, but did find these 2 articles that might be of use
in your situation.
http://ronkilber.tripod.com/acrylic/acrylic.htm
https://www.slingaircraft.com/download/110/sling/4774/06-sling-2-canopy-construction-manual-rev-0-5.pdf
Clive
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http://forums.matronics.com/viewtopic.php?p=499318#499318
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| Subject: | Re: 912ULS Airbox Water Intrusion |
Jonathan,
You folks in the UK do have a problem. A waterproof cover is best. No matter
what you do, if exposed to the elements the cockpit, engine, and fuselage can
get water in it. They just take up so much room for the good ones.
Yes those vents over the top can be pesky. In tight left turns and a fairly full
tank, they vent fuel also. Even on the ground with a cold refuel to the top
then letting the plane warm up in the hot summer sun, expands the fuel and you
have a class a fuel stain.
That's why I put the vent on the bottom. But, on a mono that can lead to problems
with muddy fields and clogging the vent if not placed properly.
Ah compromises.
All the best,
Bud Yerly
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