WT9 Dynamic 912iS E-Props 2022-06-04 Anne Essais 0 Tweet Follow me Beautiful finish for this new version of the WT9.Rotax 912 iS engine with E-props propeller (Durandal ground adjustable pitch).An efficient and performing compromise: airspeed 260 km/h (140 kt) for only 16 L/h fuel consumption ! WT9 Dynamic 912iS E-Props tests