Summary

HyFlux has an unusually interesting hydrogen-aviation proposition because the technology at its centre appears somewhat credible, if incredibly difficult to engineer and maintain. The UK company wants to exploit the extreme cold of liquid hydrogen already carried aboard a future hydrogen aircraft to cool a fully superconducting electric motor. Superconductivity can support very high current densities and therefore potentially much more power per kilogram than conventional machines, and HyFlux has been discussing specific power above 20 kW/kg while working toward multi-megawatt aviation propulsion.

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