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6-4-2009 11:54 PM
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lakotahope says:
When I first heard about airspeeds, I believed the investigators and Airbus personnel were discussing too high an airspeed for penetrating bad weather. Above the Design Maneuvering Speed, but stalling? I heard about a phenomenon called a 'high speed' stall. This involved Learjets or some similar corporate jet at high altitudes. Anyone know about this?
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6-10-2009 1:38 PM
spyderdude
I just can't see how flying to slowly could cause a plane to break apart. If the plane stalled they would have had 35,000 feet to recover airspeed. The aircraft would lose altitude rapidly but unless the pilots had no control they would have been able to recover from the stall rather quickly. Now if the aircraft was receiving a low speed signal from iced over pitot tubes the autopilot may have increased power and speed beyond safe limits. That combined with 100mph updrafts would have ripped the plane apart.
6-10-2009 1:48 PM
lakotahope
Right, in and of itself, stalling is not inherently dangerous. But, these conditions had 100 mph updrafts and very turbulent conditions--they were entering the storm system. The Pilot sent a message that he was entering "CB". A moniker for convective turbulence. Also, the automated systems were showing many equipment faults in a domino effect. One was a loss of electrical and a loss of PM1. I believe PM1 was the primary flight management system. There is a backup, but until the Blackbox's are found we will not have a clear answer. Recovering from a stall, at night and without primary gauges showing which way is up, is considered a nightmare. Also, the aircraft has more than one pitot ...
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