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Wednesday, June 10, 2009

How 18th Century Technology Could Down an Airliner

While the mystery of what caused Air France Flight 447 to vanish into the Atlantic Ocean is far from solved, preliminary reports suggest equipment first developed in the 18th century may have contributed to the crash of one of the most sophisticated airliners ever built.

The Associated Press reports some investigators suspect airspeed indicators (ASI) on the Airbus A330-200 iced over, giving faulty readings that directed onboard flight computers to accelerate fast enough to shear off the rudder and vertical stabilizer.

The air speed indicators on the doomed plane included a Pitot tube, named for Henri Pitot, the French engineer who in 1732 created an instrument that could measure the velocity of a fluid.

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