Originally Posted by
Hyperveloce
GB, this AoA based stall detection of the Cessna looks like the AoA law (alpha prot) on Airbuses. But to get an aerodynamical margin, don't we have to compare the AoA to a threshold/a max AoA ? (what is done in the alpha prot). Shouldn't this max AoA depend on the airspeed/altitude ? (Pitot/static)
Jeff
Of course it should, but when you have unreliable indication of airspeed, and possibly altitude, a simple device, as fitted to the C150, would at least give the PIC an indication of his attitude, sometimes the simplest of devices can be useful.