Rotex Electric REB 90

Type	Electric aircraft engine
National origin	Czech Republic
Manufacturer	Rotex Electric
Major applications	Ultralight aircraft

The Rotex Electric REB 90 is a Czech electric motor for powering electric aircraft, designed and produced by Rotex Electric of Prague.^[1]

Design and development

The REB 90 is a brushless 350 volt design producing 80 kW (107 hp). Its rotational speed of 1800-2400rpm allows it to turn a propeller at efficient speeds without the need for a reduction drive.^[1]^[2]

Specifications (REB 90)

Data from Tacke and manufacturer^[1]^[2]

General characteristics

Type: Brushless electric aircraft engine
Length: 212 mm (8.3 in)
Diameter: 270 mm (10.6 in)
Dry weight: 20 kg (44.1 lb)

Components

Cooling system: air or water
Reduction gear: none

Performance

Power output: 80 kW (107 hp) at 2400 rpm
Voltage: 350–380 V
Power-to-weight ratio: 4.0 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
^ ^a ^b Rotex Electric. "REB Series". www.rotexelectric.eu. Retrieved 1 May 2018.

External links

Official website

[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

[REB90-2] Rotex Electric. "REB Series". www.rotexelectric.eu. Retrieved 1 May 2018.

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[2]