Abstract: A gyro stabilizer includes a rotor arranged to rotate about a spin axis, and a stator, wherein the rotor and the stator include rotor and stator assemblies, respectively. The rotor assembly is arranged radially outside the stator assembly with respect to the spin axis, wherein the rotor and/or stator assemblies include magnets with magnetic axis in the direction of the spin axis.

Abstract: A gyro stabilizer includes a rotor arranged to rotate about a spin axis, and a stator, wherein the rotor and the stator include rotor and stator assemblies, respectively. The rotor assembly is arranged radially outside the stator assembly with respect to the spin axis, wherein the rotor and/or stator assemblies include magnets with magnetic axis in the direction of the spin axis.

Abstract: A method of stabilizing a riser includes applying an oscillating force to the riser, using one or more thrust units on the rise, so as to counteract oscillating movement of the rise, preferably having a first component oscillating at a period between 3 and 20 seconds and a second component oscillating at a period between 1 and 5 minutes, where the thrust units may be positioned at antinodes of the oscillating movement and preferably each comprise three pairs of thrusters respectively configured to provide thrust in three evenly spaced directions.