AMZ propulsion motors are synchronous motors designed for demanding VSD (variable speed drive) propulsion applications in different types of vessels. Special attention is paid to the requirements of the classification societies as well as customer needs. These include special bearing requirements resulting from the inclination of the vessel, and requirements with regard to structure-borne noise and vibration (especially on cruise vessels). The motors are designed for the most demanding conditions found in engine rooms (high ambient temperature). They are totally enclosed with air-to-water heat exchangers incorporating cooling motors with fans. This ensures safe operation throughout the speed range. The internal cabling is halogen-free and flame-retardant. The motors have also been designed with ample space for maintenance.