Toruk Macto
How hard would it to be to have a basic AOA indicator installed in every commercial jet ? Then a basic training package to be included in every endorsement that trains to react in a situation when all hell brakes lose ? Consider it a last resort recall ? They seem to be taking care of passengers with new lounges , upgraded on board entertainment and meals , but in the end passengers may go without if they knew money went to a instrument that could make a difference ? Just a thought
Airbus has AOA protections so having a dedicated AOA instrument is deemed less important by some people. This is a much argued controversy.
The stall warning is the most basic AOA indicator which is carefully designed to help prioritize attention. This topic was argued in depth on the AF447 thread.
BEA Report extract:
In alternate or direct law, the normal law high angle of attack protection is lost but the stall warning is available. It consists of a “STALL, STALL” aural warning, followed by a characteristic cricket sound and the illumination of the Master Warning light. It is triggered by the FWC when the highest of the valid angle of attack values exceeds the threshold set for the flight conditions at that time. If the CAS measurements for the three ADR are lower than 60 kt, the angle of attack values of the three ADR are invalid and the stall warning is then inoperative. This results from a logic stating that the airflow must be sufficient to ensure a valid measurement by the angle of attack sensors, especially to prevent spurious warnings.