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Power-to-weight ratio is a measurement of actual performance of any engine or power source. It is also used as a measurement of performance of a vehicle as a whole, with the engine's power output being divided by the weight (or mass) of the vehicle, to give a metric that is independent of the vehicle's size. Power-to-weight is often quoted by ...
While there are losses in the charge/discharge cycle and in the conversion of electricity to motive power, Rutter points out that most electric boats need only about 1.5 kW or 2 hp to cruise at 5 mph (8 km/h), a common maximum river speed and that a 30 hp (22 kW) petrol or diesel engine producing only 2 hp (1.5 kW) is considerably more ...
Marine propulsion. Rolls-Royce Marine Spey, a gas turbine developed by Rolls-Royce Holdings in the 1960s for 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 ...
The downside is primarily cost: Flux aims to make its motors available for $4,000-$12,000, depending on whether you want a 15-horsepower equivalent (one person in a dinghy), 40 HP (a few people in ...
Now it’s a real 30-foot boat actually plowing through the waves at 25 knots. The craft is fully electric and uses hydrofoiling to get around the fact that batteries, while fine for wheeled ...
A ZQDR-410 traction motor (the large, dark component on the axle with small ventilation holes) A traction motor is an electric motor used for propulsion of a vehicle, such as locomotives, electric or hydrogen vehicles, or electric multiple unit trains. Traction motors are used in electrically powered railway vehicles ( electric multiple units ...
A diesel–electric transmission, or diesel–electric powertrain, is a transmission system for vehicles powered by diesel engines in road, rail, and marine transport. Diesel–electric transmission is based on petrol–electric transmission, a transmission system used for petrol engines . Diesel–electric transmission is used on railways by ...
The aquatic motorsport will be 'associated closely' with Extreme E. Another electrified motorsport is in the works. Today, Formula E and Extreme E founder Alejandro Agag unveiled E1, a competition ...
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