Abstract: A thruster for propelling a marine vessel, the apparatus comprising an upper housing, a lower housing, the lower housing being arranged to rotate relative to the upper housing, a first body arranged within the upper housing, the first body comprising a first inductor to provide a magnetic field, and a second body arranged within the lower housing, the second body comprising a second inductor to generate an electrical current from the magnetic field.

Abstract: A system for contactless power transmission in an azimuth thruster, the system comprising a first body (76) comprising at least one first inductor to provide a magnetic field, a second body (78) comprising at least one second inductor to generate an electrical current from the magnetic field, the bodies being configured to be relatively rotatable, the at least one first inductor and the at least one second inductor being configured to generate an electrical current from the magnetic field at all relative rotational positions, wherein the or each of the first inductors are tuned to resonate within a predetermined frequency band and the or each of the second inductors are tuned to resonate within a predetermined frequency band, the frequency band of the or each of the second inductors at least partially overlapping with the frequency band of the or each of the first inductors.

Abstract: The invention allows vessel monitoring based on directionally captured ambient sounds. A remote operation centre for monitoring a vessel comprises a set of speakers and a controller. The controller comprises an input unit configured to receive at least one microphone signal from at least one on-board directional microphone of an array of on-board directional microphones. The controller further comprises a processing unit configured to analyze the received at least one microphone signal and to generate speaker-specific directional output signals based on the analysis. The controller further comprises an output unit configured to send the generated speaker-specific directional output signals to respective one or more speakers of the set of speakers.