A torque limited drive system comprising: an input shaft; at least one gear unit driven by the input shaft; a torque limiter having a torque limit and being driven by the at least one gear unit; and a torque limited output shaft driven by the torque limiter; wherein the torque limiter is adapted such that when it experiences a torque above its torque limit it applies a brake to said input shaft. The fact that the torque limiter is situated downstream of the gear units combined with the fact that the torque limiter brakes the input shaft upstream of the gear unit allows minimization of component weight within the gear units and within equipment driven by the output shaft due to the removal of the effect of efficiency and drag bandwidths associated with the gear units.