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Codag–electric propulsion
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In this variation, each of the codag power sources is connected to a generator, and the propellers are driven by electric motors. this design is employed by rms queen mary 2 which mounts the propulsion motors inside pods and places the gas turbines directly under the funnel 75 codag–electric where fresh air is more easily accessed than in the engine room.
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Propulsion, английский
- (реактивное) движение; силовая [двигательная] установка; двигатель
- Cредства движения; движение
- Marine propulsion is the act of moving an object through the water or across its surface. poles, paddles, and oars were the earliest forms, while sails represented the most significant historical method. today, common types are underwater propeller, water-jet, paddle wheel and, experimentally, magnetohydrodynamic drive.
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Codag–warp propulsion, английский
In this system the second acronym does not come from star wars, but refers to waterjet and refined propeller. two diesel engines drive two propellers in a codad arrangement, with a water jet powered by a gas turbine at the centerline. when idling the water jet causes no drag and—since its nozzle can be placed further aft and higher—it does not affect the size of the propellers.
Codag propulsion, английский
Combined diesel and gas turbine, refers to a propulsion system for ships which need a maximum speed (using the combined system) that is considerably faster (usually 50 percent) than their cruising speed with diesel power alone. linking the two power sources requires complex and potentially troublesome gearing, so an alternative is to let each system use its own drive shafts to turn smaller propellers. however, this is less efficient and the propellers of the idling system cause drag. codag propulsion is employed by norway’s nansen class frigates and germany’s koln class frigates.
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