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Promising Electric Aircraft Drive Systems - page 22 / 23

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Current

Piston Equivalent

50% 0.9 kW/kg 0.25 kW*hr/kg 0.06

60% 2.5 kW/kg 0.75 kW*hr/kg 0.20

50% 0.25 kW/kg 0.25 kW*hr/kg

65% 0.90 kW/kg 0.75 kW*hr/kg

0.25 kW*hr/kg

2.35 kW*hr/kg

Electric power-systems performance targets to match a piston engine Light Utility GA Aircraft

  • PEM

    • Efficiency; η

    • Power density; θ

    • Battery energy density; γ

    • Fuel/Tank weight ratio; ρ

  • SOFC

    • Efficiency; η

    • Power density; θ

    • Battery energy density; γ

  • Pure Battery

  • Battery energy density; γ

EAA Electric Aircraft World Symposium 2010: Michael Dudley

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