HPD 13.5

The HPD 13.5 motor is a notably lightweight, slowly running drive, coming with a very high specific performance and paramount efficiency. The drive is designed for the relatively low operational speed of directly driven 2-blade air screws of 1.4 to 1.6 m, or 3-blade air screws of 1.3 to 1.4 m diameter. This motor provides in comparison to the HPD 10 a capacity of
13.5 kW thus being approx. 1/3 higher and is therefore especially appropriate for heavier Trikes or double-seated aircraft.
As for the HPD 10, this motor is in fact a PPS device (polyphase permanently energised solenoid synchronal machine), which is operated by a tri-phase output stage DST as brushless direct current motor. The motor has a current consumption of 260A at rated power of 13.5kW and electric continuous operation at 52 V battery voltage. It achieves herewith a rated speed of 2100 min-1 and a torque of 57 Nm. The threshold values are approx. 300 to 320 A, according to the output stage cooling, or 70 Nm torque accelerated during take-off phase.

The motor can also be supplied for a lower specific rotation speed/voltage upon request.