A cyclic pitch control system for controlling the blade pitch angle of a thrust generating rotor assembly, the cyclic pitch control system comprising: the rotor assembly, wherein the rotor assembly comprises a rotor torque assembly including a rotor shaft, rotationally connected to a rotor blade assembly having rotor blades being able to tilt about a rotor blade axis, wherein the rotor blade assembly has a tilting moments of inertia about the rotor blade axis and a first rotational moments of inertia about a rotor shaft axis, and wherein the rotor torque assembly, including a rotational part of a motor connected to the rotor torque assembly, has a second rotational moments of inertia about the rotor shaft axis, that is substantively smaller than the first rotational moments of inertia; at least one spring member, connected to both the rotor torque assembly and the rotor blade assembly, adjusted to transfer torque between the rotor torque assembly and the rotor blade assembly and deform in case of an alteration in torque resulting in a rotational offset between a rotational position of the rotor torque assembly and the rotor blade assembly; a motor controlling mean adjusted to transform a control signal into control of a torque generated by the motor throughout each rotation; a connecting member adjusted to transfer changes in the rotational offset into changes in rotor blade pitch; wherein the rotational speed of the rotor blade assembly, due to its relatively higher first rotational moments of inertia, varies substantively less than the rotational speed of the rotor torque assembly; and wherein the characteristics of the at least one spring member, the tilting moments of inertia and the second rotational moments of inertia, are adjusted with respect to each other to provide a rotational resonance frequency range of the rotor torque assembly within a range of rotational frequencies of operation for the rotor assembly, thereby providing a resonant gain effecting the rotational offset in relation to changes in torque generated by the motor. the rotor assembly, wherein the rotor assembly comprises a rotor torque assembly including a rotor shaft, rotationally connected to a rotor blade assembly having rotor blades being able to tilt about a rotor blade axis, wherein the rotor blade assembly has a tilting moments of inertia about the rotor blade axis and a first rotational moments of inertia about a rotor shaft axis, and wherein the rotor torque assembly, including a rotational part of a motor connected to the rotor torque assembly, has a second rotational moments of inertia about the rotor shaft axis, that is substantively smaller than the first rotational moments of inertia; at least one spring member, connected to both the rotor torque assembly and the rotor blade assembly, adjusted to transfer torque between the rotor torque assembly and the rotor blade assembly and deform in case of an alteration in torque resulting in a rotational offset between a rotational position of the rotor torque assembly and the rotor blade assembly; a motor controlling mean adjusted to transform a control signal into control of a torque generated by the motor throughout each rotation; a connecting member adjusted to transfer changes in the rotational offset into changes in rotor blade pitch; wherein the rotational speed of the rotor blade assembly, due to its relatively higher first rotational moments of inertia, varies substantively less than the rotational speed of the rotor torque assembly; and wherein the characteristics of the at least one spring member, the tilting moments of inertia and the second rotational moments of inertia, are adjusted with respect to each other to provide a rotational resonance frequency range of the rotor torque assembly within a range of rotational frequencies of operation for the rotor assembly, thereby providing a resonant gain effecting the rotational offset in relation to changes in torque generated by the motor.