Here's what I know from basic tech school: Flaps = trailing dge and slats = leading edge. ?Flaps and slats aid in both take-off and landing. I'm just not sure how they do so. My guess is that during takeoff, the combo increases the wing surface area thus allowing lift at lower airspeeds. During landing, the slats keep the aircraft from falling out of the sky at low airspeeds by increasing lift while the flaps create drag about the wing thus slowing the aircraft for safe landing speeds. First, is this accurate and second, what is the function of leading edge flaps?