Multiple-input/single-output marine gearboxes direct the output of several diesel engines or electric motors to a propeller. Here, different drive concepts can be implemented. Via clutches, the gearboxes can be driven in single- or twin-engine operation. Frequently, there are special requirements for low noise emission. These gearboxes are used for passenger ships, ferries, and supply ships and offered by FLENDER for power ratings of up to 50,000 kW per engine. Higher power ratings and special solutions are available on request.