Anti Skid On :-
It is the CofP that moves rapidly FORWARD during a stall in a 1-11. However this is true of ANY swept wing aircraft. This causes the nose to pitch UP not down as in wings with no sweepback. I believe a full superstall is unrecoverable, in theory it certainly is. The rear mounted engines put them directly in the path of the desturbed air coming off the wing, leading to engine compressor stalls, thus power loss.
Also the statement about the 1-11 superstalling after an engine failure, not true. If any aircraft was that dangerous it would never have been certified!!
The stick PUSHER was invented as a method of preventing superstall. The stick shaker activater prior to the pusher.
Eff Oh.