Pipistrel Alpha Electro - Power Plant, Propeller, and Energy Storage

ALPHA Electro
www.pipistrel-aircraft.com
REV.0
POH-167-00-40-150
NOTE If the ELT is inadvertently activated in its distress mode, the operator should deactivate it
AND contact the nearest COSPAS-SARSAT Mission Control Centre or local RCC as soon as possible
to request cancellation of the distress alert (Deactivating the ALT alone does NOT cancel the
distress alert that already has been transmitted by the beacon and received by COSPAS-SARSAT).
Powerplant, propeller and energy storage
The ALPHA Electro has a out-runner type electric motor that provides direct-drive to the propeller.
The motor is a 3-phase synchronous motor with permanent magnets, which exhibits high torque and
above average efficiency ratings. Motor and power controller cooling is provided by a fluid based
system and radiator. The power controller is mounted inside the fuselage in an IP54 enclosure. All
components are protected against rain.
The system is controlled by a color-display EPSI570 cockpit interface instrument. It indicates the
drive mode and important parameters to the pilot. The EPSI570 also communicates with the Battery-
Management-System (BMS) and delivers information about the state of charge (SOC) and monitors
the charging. All components communicate via the CAN interface with a proprietary communication
protocol. The battery state of health (SOH) is displayed in the display incorporated in each battery
pack.
Motor:
TEMPERATURE °C PEM 60MVLC
Maximum takeoff power (1 min) 56 kW
Maximum continuous power 50 kW
Maximum operating temperature 95 °C
Maximum ambient temperature 40 °C
RPM PEM 60MVLC
Maximum allowable 2500
Takeoff RPM (typical) 2400
Climb RPM (typical) 2250
Power controller:
POWER CONTROLLER H300A
Nominal power 60 kW
Maximum operating temperature 65 °C
Maximum ambient temperature 40 °C
WARNING! Do not, under any circumstances, attempt to use any other batteries other than
Pipistrel factory-supplied batteries. Only use them with the motor and power controller men-
tioned in this POH.
Propeller type:
FP03-60E three blade, fixed pitch composite propeller, diameter 64 9/16’’(1640 mm)
Aircraft & systems
7-7