Originally Posted by
ecto1
Yeah, from 2.1 to 2.3 units, I know.
It could very well be that the initial blip moved the trim slightly and then stopped, they released and try again but no avail. Each square in the FDR is 3 seconds, so the second "short" blip is 2s or so. Between the two, looks to me in the 3s area. (one full square) Let's say 2.5 to be safe.
The final AND input by MCAS was 5s and moved 1.3 units. The last pilot input ANU was 2.5s (combined) and moved 0.2 units. Something odd is there.
It is a theory, I could be mistaken. But it's plausible to my eyes.
Unfortunately the plot has artificial slopes on binary events so without the raw data is hard to tell the actual length of short inputs so the total 'blip' could be significantly less than 2.5s.
Interesting idea that when they tried the electrical trim the system stalled so they tried again, hard to tell without raw data and CVR though.