Yeah, at least in the second season. Only the Gawain had a Float system in the first season, but Float systems and Air Glide systems become pretty standard as the second season moves along. And then of course the Energy Wing systems on the two main mecha.
Though all generations of KMFs also have landspinners which help them move more smoothly along the ground rather than walking or firing thrusters. Which might be what you're thinking of.