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Gravitricity's LWS system in an underground shaft uses an electric winch to lift a 500-to-5000-tonne weight, which when lowered turns the winch motor as a generator. The system generates 10 MWh, enough to power 13,000 homes for two hours. The weight can also be dropped quickly for a small burst of power. [28] [29]
The 2cT climbs at up to 0.9 m/s (177 ft/min) and the 2cM at over 3 m/s (590 ft/min). Ranges for the powered versions in saw-tooth operation are 370 km (230 mi) and 840 km (520 mi) respectively. The 2cxa has been designed to take a jet engine. A small number of Ventus 2 were fitted with the front electric sustainer.
Class D -- 59 to 65 tons (rated at 500 to 1000 horsepower) Class E -- 80 to 97 tons (rated at 1440 horsepower) [9] Baldwin-Westinghouse steeple cab electric locomotives operating as Iowa Traction Railroad (IATR) 50 and 54 in Mason City, Iowa, in 2009. Examples served with the Oshawa Electric Railway in Oshawa, Ontario.
The winch is made of cable made up of a braided synthetic rope, or a steel cable wrapped around a motorized drum. Each is controlled electronically, allowing the operator to control the winch speed. [5] Modern vehicles typically use electric winches running off the car's 12V starter or 24V secondary battery. The winch is either controlled with ...
The heart of the launch system is a large winch, around which the launch cables are wound. This winch is driven by hydraulic turbines. The two launch cables are attached to the winch on its ends, and run through two grooves on top of the launch track. The cables are attached to the sides of the catch-car, which runs in a trough between the grooves.
The E-811 is the first certified electric aircraft motor and was certified by EASA on 18 May 2020. [3] [4] [5] [1] The Velis Electro has a maximum noise level of 60 dBa. [1] The aircraft has an empty weight of 428 kg (944 lb) and a gross weight of 600 kg (1,300 lb), giving a useful load of 172 kg (379 lb). [3] [4]