Re: Why are all airliners white

Date:         16 Sep 97 02:35:28 
From:         Sharat Chandrasekhar <mcsharat@wyman.com>
Organization: Wyman Gordon Forgings
References:   1 2 3
Followups:    1
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K_ish (Ken Ishigura) <konish@ix.netcom.com> wrote:
> ...the Concorde is white instead of the BA gray due to solar
> heat loading as well as the high skin temperatures generated by
> aerodynamic friction

Good point. But what about the surface temperature of (subsonic)
widebodied jets at cruising altitudes (where the ambient temperature is
well below 0 Celcius)?

If the surface temp. is lower than or marginally above 0 Celcius, the
case could be made that enhanced solar irradiation due to dark colors
could help reduce the interior heating costs, unless there's something
else I'm not accounting for here.

Any ideas or comments?
-Sharat

Sharat Chandrasekhar
Process Development Engineer
Wyman Gordon Forgings
Houston, TX
(281) 856 4421
Email: mcsharat@wyman.com