What Traffic Several RN aircraft used ‘indexed’ audio AOA for Carrier approaches.
MFS IIRC there is a clever method of using AOA to display (overlay) AoA related information such as stall margin or approach speed on EFIS airspeed scales.
I believe that the technique required knowledge of CL polars etc, and on some aircraft a trim input as an approximation of cg. As I understand this overcomes the problems of weight; are we discussing similar concepts?
I am confident that this was used on the Avro RJ – it used a Honeywell algorithm, which may have originated from the MD11, as both these aircraft had Honeywell EFIS speed computation. The Avro RJ did not provide any FMS derived aircraft weight input to the system.