The Siemens SP90G is a German electric motor for powering electric aircraft, designed and produced by Siemens of Erlangen. ^[1]

Design and development

The SP90G is a brushless design producing 65 kW (87 hp), with an outrunner coil. The design uses a planetary gear mechanical gearbox reduction drive. ^[1]

Specifications (SP90G)

Data from Tacke ^[1]

General characteristics

• Type: Brushless electric aircraft engine
• Length: 180 mm (7.1 in)
• Diameter: 224 mm (8.8 in)
• Dry weight: 13 kg (28.7 lb)

Components

• Coil type: Outrunner
• Cooling system: air
• Reduction gear: planetary gear mechanical gearbox

Performance

• Power output: 65 kW (87 hp)
• Voltage: V nominal
• Power-to-weight ratio: 5.0 kW/kg

See also

• Siemens SP260D

Related lists

• List of aircraft engines

References