**Table 5.**

*Characteristics of the electric aircraft motor.*

To maximise the power-to-weight ratio, we have designed an electric motor operating at high frequency. The winding structure is special [1, 4, 5, 14], where the phases are arranged in six separate sectors, the electrical phase shift is ensured by introducing an intermediate irregular tooth, as illustrated in **Figures 4, 19** and **20**. This winding design allows, on the one hand, to keep a limited number of slots (36 slots), despite the large number of poles (40 poles), and, on the other hand, to avoid the end-windings overlaps, resulting in very short overhangs.

The simplified specifications are as follows:


The **Table 5** shows the main characteristics of the electric motor.

The structure with large number of poles allows to obtain high specific power, more than 4 kW/kg. The VLV winding contributes to this level of performance without compromising the efficiency. The additional loss coefficient, KAC, remains moderate despite operating at a frequency of 1666 Hz. As the motor is placed behind the propulsion propeller, the 1600Wof total losses will be easily evacuated.
