Aircraft wing leading edge and slot - US2755039A

Bring high pressure airflow to the suction side of the airfoil after the leading edge radius Thus energize the boundary layer,

I was referring to a pivoting fixed slat that has a fixed amount of travel so that at its farthest point away from the wing the exit area is roughly 13 or less

fixed slot Bring high pressure airflow to the suction side of the airfoil after the leading edge radius Thus energize the boundary layer,

fixed limit poker i was talking about fixed SLOTS they help keep air