Re: Deicing

Date:         25 Jan 98 03:27:24 
From:         "Odilo Vazquez" <ovazquez@erols.com>
Organization: Erol's Internet Services
References:   1
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The problem with snow on the wing is that it might mask ice underneath, so
if you don't remove the snow you don't know whats underneath.

In regard to the enviromental conditions, The FARs (part 25 appendix C) and
50 years of flight experience shows that ice can accumulate to temperature
as low as -22 deg F.