Re: Really Long Range Commercial Transport

From:         rna@leland.Stanford.EDU (Robert Ashcroft)
Organization: Stanford University, CA 94305, USA
Date:         13 Jun 94 10:42:08 
References:   1 2 3
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In article <airliners.1994.1258@ohare.chicago.com>,
Terrell D. Drinkard <drinkard@bcstec.ca.boeing.com> wrote:
>In article <airliners.1994.1228@ohare.chicago.com>,
>Robert Ashcroft <rna@leland.Stanford.EDU> wrote:
>>[Some stuff deleted]  That
>>foolishness with recycling air might have to stop on such a long flight
>>(perhaps the air could be "refreshed" every 8 hours or so?). [...]
>
>Let me clear up a misconception here.  The air in a commercial airliner is
>half fresh, half (or less) recirculated air.  It is not currently possible
>to maintain the same air on board for 8 hours, or even one.  As a rule of
>thumb, you can figure that the air completely changes every three minutes.

No misconception.  I meant that perhaps every few hours they'd treat people
by blowing in fully fresh air.  Of course this assumes there is a problem
with recirculated air, which is currently a topic exercising Congress.

RNA