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The maximum take-off weight of the NXT is 1,200 kg. Rolls-Royce intend the battery, motors and control equipment in a production system to weigh the same as the regular engine and fuel tank in a conventional aircraft, [2] but the battery pack alone in the Spirit of Innovation currently weighs 1350 kg. [9]
Wright is working with Madrid-based Axter Aerospace, already flying its two-seat AX-40S based on a Tecnam P92 with a Rotax piston engine and an electric motor driving the propeller, with four times less power. After a 50-seat model, Darold Cummings, designer of the ESAero ECO-80 turboelectric configuration for NASA, evolved this previous design ...
On 19 August 2019, the compact 2.5 MW (3,400 hp) generator was run for the first time in Trondheim, Norway, before integration with an AE2100 turboprop from a Saab 2000 feeding the battery pack and a Siemens SP260D electric motor (with a 10 kW/kg power-to-weight ratio) replacing one Honeywell LF507 engine with a Rolls-Royce AE 3007 fan, through ...
The E-Fan 4.0 appears identical to the E-Fan apart from a fuselage stretch. To increase flight duration the planned E-Fan 4.0 would have had a hybrid-electric system that will have a small engine to charge the battery (like a range extender), which would have increased its duration from 2 hours to 3.5 hours. The first flight of the E-Fan 2.0 ...
Larger aircraft have control surfaces that run on these backups as well. Aircraft batteries are either nickel-cadmium or valve-regulated lead acid type. The battery keeps all necessary items running for between 30 minutes and 3 hours. Large aircraft may have a ram air turbine to provide additional power during engine failures.
Take-off is not allowed when battery state of charge (SoC) is below 50%. [2] The aircraft has a built-in continuous health-monitoring system displaying the estimated 'age' of the battery, and the battery must be charged using proprietary equipment. [2] The E-811 is the first certified electric aircraft motor and was certified by EASA on 18 May ...
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