Re: 757 flight recorder located

From:         mkrotz@qrz.com (Mark Krotz)
Organization: Evergreen Communications, Phoenix, Arizona
Date:         14 Mar 96 17:49:32 
References:   1 2 3
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In article <airliners.1996.303@ohare.Chicago.COM>,

>To carry the thought a step further (and perhaps to extremes), does current
>technology make it feasible for airliners to transmit their operating
>parameters to the ground in real time?
>
Not only is it feasible, it is actually in use.  Its called ACARS (aircraft
calling and reporting system).  It can provide automatic transmission from
air-to-ground of OUT-OFF-ON-IN times, flight number, crew identification,
fuel load, passenger count, data such as engine performance, position,
maintenance reports.  Also, it can include air-to-ground and ground-to-air
selective calling.  A lot of the information is provided automatically by
sensors, and it is sent in digital data clusters over VHF frequencies.

Mark