This tumble is very possibly irrecoverable but is not deep stall.
There are two documented incidences where deep stalls were encountered. Both of the experienced test pilots indicated that the airplanes stalled at an angle of attack of about 40 to 60 degrees, and "locked" in a non-rotating descent at an almost flat angle to the horizon. Despite efforts to push the nose down by the control stick, rocking the wings and even manually attempting to manipulate the center of gravity forward by shifting their body weight forward, neither pilot was...
Clandy:
The first quote is yours and the second is from an NTSB Velocity accident report. You can do a search on the NTSB site and find it in one of the 8 reports for the Velocity. You'll know which one. PAGE 1E. (No tumbling mentioned here.)
Your post was discussing 'aeroplanes'. The Velocity is an 'aeroplane'. Your claim was that
'only' T-tailed 'aeroplanes' could deep stall.
He knows that the only known way to achieve it is to include T-tail in aeroplane's design.
Followed by a claim that no Velocity aircraft ever deep stalled. I believe your words were: "Nope. It did not."
Does the Velocity stall description bring anything to mind?
Just curious, when was the last time you positioned the trim manually in a stalled A330?