Hello
mm43;
I've seen words to that effect in past documents and I'm still searching through my archive. I found one item that hints that the stall warning may be false, but all other documents I've viewed thus far, (2002 to the present) having to do with UAS, state that the stall warning should be respected. But I know I have read somewhere that the warning could be false. The following may hint that the stall warning is/could be false but nothing in the document, (1997 & 2005) states that the warning should be ignored:
Any erroneous speed/altitude indication will always be associated with one or
more of the following cues:
· Fluctuations in airspeed indications
· Abnormal correlation of basic flight parameters (IAS, pitch, attitude, thrust,
climb rate); e.g IAS increasing with large nose-up pitch attitude, IAS
decreasing with large nose down pitch attitude, IAS decreasing, with nose
down pitch attitude and aircraft descending
· Abnormal AP/FD/A/THR behavior
· Stall or overspeed warnings
· Reduction in aerodynamic noise, with increasing IAS
· Increase in aerodynamic noise, with decreasing IAS
On a related matter, the link to this Airbus presentation may have been posted previously but it is worth taking a look at it. The presentation was created in September, 2006.
Unreliable Speed - Latest Improvements