Hi Chris,
Originally Posted by Chris Scott
Monsieur, can you explain what these figures mean, and from what data they were derived?
Sorry if this was not clear.
I formated the columns exactly like the table above including 9 historical cases of LOC in order to compare them easily with 1 to 6 minutes rate of descent from FL350 for AF447 in case of a single upset leading to the crash.
So, the headings are the same like in the first table:
1. Event date
2. Rate of descent (ft/mn)
3. Flight Level (departing)
4. Duration (seconds)
5. Distance covered (Nautic Miles)
6. Type of aircraft
7. Known cause of upset
It is showing that a 1-3 minutes duration event might have fit with the historical table (12,000 to 35,000 ft/mn); that the covered ground distance of 5 NM is also coherent with other historical cases; but that a possible 4-5-6 minutes event (6,000 to 9,000 ft/mn) do not match the precedent cases.