And don´t believe the myth that it will "deep stall". It won´t like any DC 9 / MD 80 on this planet!
Never say never.
There is always a first.
Concept to Reality
Following in-depth analysis of the aerodynamic data, Douglas designed an under-wing leading-edge fence (which they named a “vortillon” which is short for vortex generating pylon) that provided additional flow energy at the tail for nose-down recovery at and slightly above the stall angle of attack. In addition to analyzing wind-tunnel data, Douglas also conducted some rudimentary piloted flight simulations before deciding on final modifications for the DC-9. The final modifications developed to prevent the DC-9 from entering a dangerous deep stall included the vortillons (which assisted in immediate poststall recovery, but had little effect at the deep-stall condition), an increase in the span of the original horizontal tail, a stick shaker, visual and aural stall warnings, and a standby power system that provided full nose-down elevator capability for deep-stall recovery. (The original aerodynamic tab system was not capable of providing sufficient elevator angle at very high angles of attack.) These modifications, which were incorporated prior to the first flight of the DC-9 on February 25, 1965, proved effective in preventing deep stall for the DC-9 throughout its service life.
Still, I wouldn't try it.
Prevention is always better than cure.
ECAM Actions.