RS: The AOA data is voted invalid by the air data computers at speeds below the threshold due
to the aerodynamic limitations of the sensor vanes. This makes perfect sense and the floor value
was undoubtedly proven during flight testing and certification.
However, going beyond the obvious flight control computer safety limitations regarding halted
operation (and subsequent hand-off) when presented with bad AOA data, the stall warning logic,
if our suppositions of a 60 knot cutout floor are correct, might well be subject to a recommended revision
by the BEA in its final report.
Last edited by vapilot2004; 15th Dec 2011 at 02:17.
Reason: Reformed for clarity.