Aircraft Electrification Level

Built and tested

Partially tested

Not built

Westinghouse (160 lb) Partially tested 1985 (540 KW)

Electrodynamics (145 lb)

Electrodynamics (327 lb) Tested to 1.5MW

MEPS Obsolete (1250 lb) 3,000 lbs prototype tested to 1.5MW

2.5 MW, UTCEM Air/Oil Cooled (2,550 lbs) 2.2KW/KG

1.2 MW Bendix, 1,200 Cooled (856 lb) 1987

Honeywell (208 lbs) Partially tested (540 kW)

LEI (186) Partially tested

Westinghouse 2.3 MW, 5 KV Air-Cooled (1,500 lbs) 1977

Electrodynamics (562 lb)

2 kW/kg

EV Drive Motor

5.2 kW/kg

Propulsion Motor by Siemens

13.2 kW/kg

Future Aircraft Electrical Machine by NASA

Fig. 3. Development of electrical machines in power density.