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don't tell the Airstream trailer people :-)
Kevin Lane Portland, OR
e-mail-> n3773@comcast.net
web-> http://home.comcast.net/~n3773
(browse w/ internet explorer)
----- Original Message ----- From: "David Carter" <dcarter@datarecall.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Sunday, May 23, 2004 9:48 PM
Subject: [FlyRotary] Re: Two problems solved, 2 more pop up...
I've noticed that shiney polished aluminum airplanes are quite hot in the
sun, whereas white and light cream colored painted exteriors are quite
cool.
I used to think and "aluminum" finish would be best for reflecting heat,
but
I no longer think that. I think the same situation would prevail inside
the
cowl.
David
----- Original Message ----- From: "Chad Robinson" <crj@lucubration.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Sunday, May 23, 2004 9:25 PM
Subject: [FlyRotary] Re: Two problems solved, 2 more pop up...
<snip> Given that the primary goal is reflecting radiated heat (rather
than
"real"
> thermal insulation) what's wrong with a coat or two of shiny silver
paint?
> It's not as good as polished aluminum but it's decent, and high on the
> reflective scale. Sherwin Williams (and others) sells a product called
> "Silver-Brite" that is marketed as "heat reflective" and "dry heat
resistant
> to 700degF". I haven't tested its adherence to epoxy so it might need a
primer
> coat to help it stick better (it's designed for metal) but that's not a
> painful step. In any event, it would sure be a lot easier to apply than
either
> foil OR fiberfrax, especially to an oddly-shaped cowl.
>
> Unless real thermal insulation properties are necesary?
>
> Regards,
> Chad
>> Homepage: http://www.flyrotary.com/
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