PPRuNe Forums - View Single Post - E-Fan X: R-R/Airbus electric drive demonstrator
Old 28th Nov 2017, 13:33
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Join Date: Mar 2002
Location: Surrey, UK
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E-Fan X: R-R/Airbus electric drive demonstrator

Airbus, Rolls-Royce, and Siemens team up for electric future ? Rolls-Royce

This looks interesting. Airbus, R-R, and Siemens developing an electric demonstrator aircraft. Specifically, the airframe is a BAe 146 with one engine replaced with a ducted electric fan. The power comes from a 2MW turboshaft generator in the tail - like a big APU (IIRC that's in the same ball park as the 787's electrics). Once that's working they'll swap a second engine.

Questions I have about this:

1) Is the efficiency gain that good it's still worthwhile when the power is coming from a gas turbine?
2) Or is the idea to prove the power electronics and the fan, with a view to getting the power from something else?
3) Are they thinking of a duty cycle change - take-off on turbofan and cruise on turboelectric?
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