Originally Posted by
Squawk7700
Descent rate under chute is less than 2,000 fpm, forward speed less than 20 knots and time to deploy down to near zero forward speed is less than 10 seconds.
There are only a very limited number of ways that an aircraft can lose that much altitude in that short space of time.
My comment about the chute was more in regards to some sort of chute malfunction, of course fully deployed RoD would be well less. But what if somehow it was activated and fouled in the tail surface, or only opened enough to basically turn the aircraft into an unguided retarded bomb.
On spins or spiral dives, the profile and heading seems to be a turn to the right as it descends, but not in the pattern of a spiral dive for sure and the heading stability would suggest not a spin. And speed wise it looked like it was accelerating to cruise when it suddenly just dived, so it doesn't look like a stall spin scenario, at least at the onset.