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Politics : Politics for Pros- moderated

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To: Geoff Altman who wrote (429745)	6/2/2011 6:05:44 PM
From: pheilman_	Read Replies (2) of 794156

There's usually only one reason for an accident like this but that one reason many times leads to many other mistakes...... 1) It was an Airbus? (the software takes suggestions from the pilots and would not have anticipated air speed measurement failure) 2) The envelope at high speed, high altitude, is shockingly small, something like 20 knots. Without the airspeed indication and with turbulent air, tough to keep the aircraft in the envelope. 3) All goes back to pitot tubes that have, unexpectedly, been replaced on all the Airbusses. Even with GPS giving perfect information on speed over the ground the pilots would not know airspeed. Disgusts me as an engineer that they still use that archaic pitot technology rather than some sort of sonic technique. As though the Airbus could fly without full electronics operating. Yes, I realize that with a pitot and a still air port the essential instruments can operate in a unpowered cockpit, just doubt that is the case in an Airbus and if it has gone unpowered, that pitot will get cold and iced up quickly.

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