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2. Jetboat - Wikipedia

   en.wikipedia.org/wiki/Jetboat

   A jetboat is a boat propelled by a jet of water ejected from the back of the craft. Unlike a powerboat or motorboat that uses an external propeller in the water below or behind the boat, a jetboat draws the water from under the boat through an intake and into a pump-jet inside the boat, before expelling it through a nozzle at the stern.

3. 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 impeller.

4. Pump-jet - Wikipedia

   en.wikipedia.org/wiki/Pump-jet

   The boat was reported to reach a speed of four mph moving upstream. [7] [8] [9] On December 21, 1833, Irish engineer John Howard Kyan received a UK patent for propelling ships by a jet of water ejected from the stern. [10] In April 1932, Italian engineer Secondo Campini demonstrated a pump-jet propelled boat in Venice, Italy. The boat achieved ...

5. Sea-Doo - Wikipedia

   en.wikipedia.org/wiki/Sea-Doo

   There are five categories of Sea-Doo models: Recreation, Tow Sports, Touring, Sport Fishing, and Performance. [14]The Sea-Doo jet-powered sport boats included a four-seater Sportster 150 with 155 hp or 215 hp, a four-seater Speedster 150 with 255 hp, and a seven-seater Speedster 200 with 310 hp, and a Speedster 230 with space for up to twelve people.

6. Outboard motor - Wikipedia

   en.wikipedia.org/wiki/Outboard_motor

   Basic parts of an outboard motor. An outboard motor is a propulsion system for boats, consisting of a self-contained unit that includes engine, gearbox and propeller or jet drive, designed to be affixed to the outside of the transom. They are the most common motorised method of propelling small watercraft.

7. Hydroplane (boat) - Wikipedia

   en.wikipedia.org/wiki/Hydroplane_(boat)

   A hydroplane (or hydro, or thunderboat) is a fast motorboat, where the hull shape is such that at speed, the weight of the boat is supported by planing forces, rather than simple buoyancy. A key aspect of hydroplanes is that they use the water they are on for lift rather than buoyancy, as well as for propulsion and steering : when travelling at ...