A device that produces linear motion by sequentially and in a continuous sequence accelerating inertial thrust masses at well-defined times towards the axis of counter-rotating disks. The inertial thrust masses are contained in cavities placed equidistantly about the periphery of counter rotating capture disks mounted on a common axle. They are radially accelerated by a bi-directional impulse ramps that can be moved to any position around the periphery of the counter rotating capture plates and into and out of the paths of the gyrating thrust masses to any desired depth within the mechanical range of the impulse ramps which simultaneously engage and radially accelerate the inertial thrust masses of each counter-rotating capture plate. The counter-rotating capture plates are each separately driven by a gear assembly powered by an external engine or motor that powers the rotation of the disks. Each radial acceleration of the inertial thrust masses produces an impulse of force that pushes against the mass accelerator with a force equal to the force used to radially accelerate each thrust mass. Each impulse is a vector force and imparts motion along the chosen vector to any object to which the device is attached.

The invention relates to a drive arrangement containing a rotational mass which is supported so as to be rotatable about a first axis, a bearing element supported so as to be rotatable about a second axis extending perpendicular to the first axis having a bearing for supporting the rotational mass, an oscillating body supported so as to be rotatable about a third axis perpendicular to the second axis having a bearing for supporting the bearing element, a drive provided on the oscillating body for generating a rotary movement of the bearing element about the second axis, a housing having a bearing for supporting the oscillating body, and a brake fixed to the housing for braking the rotary movement of the oscillating body in such a way that with each braking operation a driving force is transmitted to the housing.