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  2. Marine propulsion - Wikipedia

    en.wikipedia.org/wiki/Marine_propulsion

    Marine propulsion is the mechanism or system used to generate thrust to move a watercraft through water. While paddles and sails are still used on some smaller boats , most modern ships are propelled by mechanical systems consisting of an electric motor or internal combustion engine driving a propeller , or less frequently, in pump-jets , an ...

  3. Magnetohydrodynamic drive - Wikipedia

    en.wikipedia.org/wiki/Magnetohydrodynamic_drive

    MHD propulsion has been considered as the main propulsion system for both marine and space ships since there is no need to produce lift to counter the gravity of Earth in water (due to buoyancy) nor in space (due to weightlessness), which is ruled out in the case of flight in the atmosphere.

  4. Combined diesel-electric and diesel - Wikipedia

    en.wikipedia.org/wiki/Combined_diesel-electric...

    The CODLAD propulsion system is based on the use of electric motors directly connected to the axes (generally two) of the propellers. The electric motors are powered by diesel generators and to have higher speeds, as happens in CODAD propulsion systems, the higher power diesel engine is inserted which is disconnected from the transmission system to return to cruising speed.

  5. Voith Schneider Propeller - Wikipedia

    en.wikipedia.org/wiki/Voith_Schneider_Propeller

    The Voith Schneider Propeller (VSP) is a specialized marine propulsion system (MPS) manufactured by the Voith Group based on a cyclorotor design. It is highly maneuverable, being able to change the direction of its thrust almost instantaneously. It is widely used on tugs and ferries.

  6. Combined diesel–electric and gas - Wikipedia

    en.wikipedia.org/wiki/Combined_diesel–electric...

    Principle of a CODLAG propulsion system. Combined diesel–electric and gas (CODLAG) is a modification of the combined diesel and gas propulsion system for ships.A variant, called the combined diesel–electric or gas (CODLOG) system, contains the same basic elements but will not allow simultaneous use of the alternative drive sources.

  7. Pump-jet - Wikipedia

    en.wikipedia.org/wiki/Pump-jet

    A pump-jet, hydrojet, or water jet is a marine system that produces a jet of water for propulsion. The mechanical arrangement may be a ducted propeller (axial-flow pump), a centrifugal pump, or a mixed flow pump which is a combination of both centrifugal and axial designs. The design also incorporates an intake to provide water to the pump and ...

  8. UQM Technologies Expands its Marine Applications with ...

    www.aol.com/news/2012-10-10-uqm-technologies...

    UQM Technologies Expands its Marine Applications with Electric Propulsion System for Mylne Bolt 18 Yacht Tender The Mylne Bolt 18 debuted at the 2012 Monaco Yacht ...

  9. Combined diesel and gas - Wikipedia

    en.wikipedia.org/wiki/Combined_diesel_and_gas

    Principle of a CODAG system, with two speed diesel gearboxes. Combined diesel and gas (CODAG) is a type of propulsion system for ships that need a maximum speed that is considerably faster than their cruise speed, particularly warships like modern frigates or corvettes.