Thanks for your clarifications
Originally Posted by mm34
Have a look at
HN39's post #70 where he explains the how the data was constructed.
Originally Posted by HazelNuts39
The curve shows the stall warning threshold. .... Except for the NCD condition explained by mm43, stall warning begins when AoA exceeds the stall warning threshold, and continues until the AoA has decreased below that threshold
Then it would seem that naming of that curve "SW threshold" would make the graph clearer/self explanatory. A "SW" curve (could be non-contiguous) could be the curve representing on the time scale the intervals when the Stall Warning was (should have been) active.
As I looked again at the graph, I thought it would be helpful to see the corresponding curves/data that were available to the "a/c systems" and "a/c pilots" in the context of "loss of data", and showing the discontinuity in the SWT (stall warning threshold) curve, due to NCD - was there such a graph already made available?
Originally Posted by mm34
No valid data has resulted in the SW turning off, .... but the application of NU commands to the SS has resulted in the SW stopping again. Result is an inappropriate action was rewarded.
The Stall Warning ON->OFF->ON->OFF transitioning during the Stall is one of the several elements that seem to be in the most troubling category. Would this qualify the SW during the event in a different type than "lack of info"? Would it be, the "FALSE info" type?
Is the calculation/equation used for determining the providing of the Stall Warning relying on too few parameters?
"Vertical acceleration", or "vertical speed", perhaps "no lift"? Is any of the existing sensors, and parameters available on the "a/c" able to provide info, so that a Stall Warning could have been clearly brought to the knowledge of the pilots for the entire duration of the Stall?