OK465
BUSS looks suspiciously like an AOA indexer.
I concur, Increasing AOA is toward the bottom. Oriented this way to make the display read in a manner similar to airspeed. Note: There are no numbers on the display.
Shouldn't the note at the bottom right say:
Red lower area corresponding to CAS < V
LS
AF447 would have been at the bottom of the bottom red band while on its way down. Even three highly confused aviators would have understood their plight then.
Well, lets hope so.