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2. Marine propulsion - Wikipedia

   en.wikipedia.org/wiki/Marine_propulsion

   These relied entirely on lead-acid batteries for electric current to power their propellers. Elco (the Electric Launch Company) evolved into the industry leader, later expanding into other forms of vessel, including the iconic World War II PT boat. In the early part of the 20th century electric propulsion was adapted to use in submarines. As ...

3. Electric boat - Wikipedia

   en.wikipedia.org/wiki/Electric_boat

   An electric boat is a powered watercraft driven by electric motors, which are powered by either on-board battery packs, solar panels or generators. [ 1 ] While a significant majority of water vessels are powered by diesel engines , with sail power and gasoline engines also popular, boats powered by electricity have been used for over 120 years.

4. Azimuth thruster - Wikipedia

   en.wikipedia.org/wiki/Azimuth_thruster

   English inventor Francis Ronalds described what he called a propelling rudder in 1859 that combined the propulsion and steering mechanisms of a boat in a single apparatus. . The propeller was placed in a frame having an outer profile similar to a rudder and attached to a vertical shaft that allowed the device to rotate in plane while spin was transmitted to the propell

5. Schottel (company) - Wikipedia

   en.wikipedia.org/wiki/Schottel_(company)

   Schottel is a manufacturer of propulsion and steering systems for ships and offshore applications. The company founder Josef Becker invented the rudderpropeller, a z-drive , in 1950. Today the company develops and manufactures azimuth propulsion , maneuvering and steering systems.

6. Z-drive - Wikipedia

   en.wikipedia.org/wiki/Z-drive

   It does not refer to an electric motor in a rotating pod. The device is different from the Voith-Schneider marine propulsion system (also mechanically linked), which can also quickly change the direction of thrust, as the Z-drive uses a shrouded conventional screw that pivots or rotates the propeller, unlike the variable-geometry blades of the ...

7. E1 Series (boat racing) - Wikipedia

   en.wikipedia.org/wiki/E1_Series_(boat_racing)

   The RaceBird is an all-electric hydrofoil boat. It is 24 feet long, with aluminum hydrofoils which raise the boat when reaching a speed of 17 knots. The 200-hp electric motor can reach a power output of 150 kW and has a battery capacity of 35 kWh. It can reach a top speed of 50 knots (58 MPH/93 KPH).