[Boatanchors] LightSquared

WA5CAB at cs.com WA5CAB at cs.com
Mon Oct 8 18:09:20 EDT 2012


And what do they all do when they lose GPS? 

In a message dated 10/08/2012 16:48:39 PM Central Daylight Time, 
rbethman at comcast.net writes: 
> You need to come out of the '60s!
> 
> Glass Cockpits
> 
> As aircraft displays have modernized, the sensors that feed them have 
> modernized
> as well. Traditional gyroscopic flight instruments have been replaced by
> electronic Attitude and Heading Reference Systems (AHRS) and Air Data 
> Computers
> (ADCs), improving reliability and reducing cost and maintenance. GPS 
> receivers
> are usually integrated into glass cockpits.
> 
> Early glass cockpits, found in the McDonnell Douglas MD-80/90, Boeing 737
> Classic, 757 and 767-200/-300, and in the Airbus A300-600 and A310, used
> Electronic Flight Instrument Systems (EFIS) to display attitude and 
> navigational
> information only, with traditional mechanical gauges retained for 
> airspeed,
> altitude and vertical speed. Later glass cockpits, found in the Boeing 
> 737NG,
> 747-400, 767-400, 777, A320 and later Airbuses, Ilyushin Il-96 and 
> Tupolev Tu-
> 204 have completely replaced the mechanical gauges and warning lights in
> previous generations of aircraft.
> 
> Bob - N0DGN
> 
> 
> I don't think any commercial airline or the military would fly w/o INS.
> 
> -John
> 

Robert & Susan Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480


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