Re: 747 "smoke" trail

Date:         25 Jun 99 01:32:46 
From:         "John Weiss" <jrweiss@seanet*NOSPAM*.com>
References:   1 2 3 4 5
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J. W. Dawson <hatcat@frontiernet.net> wrote in message <airliners.1999.687@ohare.Chicago.COM> ...
> I believe the original issue was spotting smoke on arrival over the
> destination and APU's are normally started sometime during the approach.
> Exact timing varies from carrier to carrier and type to type.

The 747 APU is normally started after landing.

--
John R. Weiss
Seattle, WA
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