3 ms·
The issue with AF447 wasn't really the disengagement of the autopilot; the crew knew the autopilot was off. What they didn't know was: 1. Exactly why the auto
by ubernostrum 11y ago
The issue with AF447 wasn't really the disengagement of the autopilot; the crew knew the autopilot was off.
What they didn't know was:
1. Exactly why the autopilot was having trouble, and
2. That the fly-by-wire/flight envelope protection system had switched to "alternate law" mode which disabled stall protection.
- neurotech1 11y agoOne interesting detail is that accelerating an A330 to M0.90 would probably not significantly damage the aircraft, if at all. For a unreliable airspeed issue, 85% thrust with 5 degree nose high attitude would keep the jet in the air. Keeping the nose much higher than 5 degrees risks a deep stall, which can easily result in a fatal crash.