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Old 05-09-2019, 12:57 PM   #166
dravnx
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The C-Max, as most large aircraft, has 2 AOA sensors. AOA can also be derived from other sensors. Using a combination of Pitot (ram air pressure used to sense airspeed), static (air pressure referenced from the outside), attitude, accelerometers built into the intertial reference systems, etc.
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Old 05-09-2019, 01:06 PM   #167
Mike95060
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Originally Posted by dravnx View Post
The C-Max, as most large aircraft, has 2 AOA sensors. AOA can also be derived from other sensors. Using a combination of Pitot (ram air pressure used to sense airspeed), static (air pressure referenced from the outside), attitude, accelerometers built into the intertial reference systems, etc.
The Video does have a correction that 2 AOA sensors are standard. That and what you descried, along with adequate pilot training, make me feel as if the base level of redundancy is reasonable. Maybe not ideal, but not so obviously criminally negligible as it may have seemed.
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Old 05-09-2019, 01:58 PM   #168
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Originally Posted by dravnx View Post
The C-Max, as most large aircraft, has 2 AOA sensors. AOA can also be derived from other sensors. Using a combination of Pitot (ram air pressure used to sense airspeed), static (air pressure referenced from the outside), attitude, accelerometers built into the intertial reference systems, etc.
The article that I read about this said that, whereas it has two sensors, only one of them is used as the input to the MCAS system. The other is a secondary indicator. So it still relies on a single sensor. Obviously this could be BS, but crazier things have happened.
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