[Blueflag]

Classic ‘Q/coffin corner’ scenario as shown in that illustration.

Illustration lists @ 2:11 a possible “deep stall” but my understanding of a deep stall is that it peculiar to T-Tail designs - like the MD-80 and the B-727.

But my Vne is a mere 128KIAS and we never get close. Why waste the gas? (have to look at that placard again) .

Q corner puts the nose down, and deep stall keeps you nose up. .... on PowerPoint anyways; reality I have no clue. So I dunno. Never flown or trained to fly a swept wing fast mover.

[raygun]

'deep stall' is impossible in that type plane. Obviously using the word 'deep' in the context of describing a stall sounds impressive, but bears NO relation to the truth of the matter.

Let's nip it in the bud right now and stop using that phrase, shall we?

Deep stall is only possible with T-type tailplane.

[PiperShade]

The difference twixt “light and heavy” is mass; and how the aircraft reacts to pilot control inputs. In aircraft you and I fly “mass” is a minor factor as drag/airflow and relative attitude largely overmaster the effects of mass. >PS