Combined diesel or gas

A CODOG drive ( for Combined Diesel Or Gas ) is a ship propulsion concept, can be connected with the diesel engines or gas turbines for cruising speed on the drive shaft.

The advantage of the CODOG drive is the relatively simple design of the main gear. A disadvantage is the additional weight of the respective non-operative drive component. Earlier CODOG drives often suffered under the susceptibility when switching between diesel and turbine operation. This problem is resolved in modern drives this form.

CODOG drives are used in particular in the warship.

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