Siemens SP260D

SP260D
Type	Electric aircraft engine
National origin	Germany
Manufacturer	Siemens

The Siemens SP260D is a German electric motor for powering electric aircraft, designed and produced by Siemens of Erlangen.^[1]

Design and development

The SP260D is a brushless design producing 261 kW (350 hp), with an inrunner coil. It has a 95% efficiency. The low working rpm of the engine means that it can turn a propeller at efficient speeds without the need for a reduction drive.^[1]

Specifications (SP260D)

Data from Tacke^[1]

General characteristics

Type: Brushless electric aircraft engine
Length: 300 mm (11.8 in)
Diameter: 418 mm (16.5 in)
Dry weight: 50 kg (110.2 lb)

Components

Coil type: inrunner
Cooling system: air
Reduction gear: none

Performance

Power output: 261 kW (350 hp)
Voltage: V nominal
Best efficiency: 95
Power-to-weight ratio: 5.22 kW/kg

References

^ ^a ^b ^c Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, pages 262-263. Flying Pages Europe SARL, 2015. ISSN 1368-485X

[WDLA15-1] Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, pages 262-263. Flying Pages Europe SARL, 2015. ISSN 1368-485X

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