US Patent 11618584 Helicopter winch cable stabilizer

A stabilizing system for a winch cable has a winch cable deployed and suspended from a helicopter, a cargo support attached at a deployed end of the winch cable, an end effector attached to the winch cable, the end effector comprising thrusters directed in a plurality of directions orthogonal to a vertical axis of the winch cable, first control circuitry in the helicopter, and second control circuitry in the end effector. Thrust of individual thrusters is controlled through the first and second control circuitry maintaining the axis of the winch cable vertical, damping swinging of the cable.