Emrax 228

The Emrax 228 is a Slovenian electric motor for powering electric aircraft and other applications, designed and produced by Emrax d.o.o of Kamnik. The company was formerly called Enstroj and based in Radomlje.[1]

Emrax 228
Type Electric aircraft engine
National origin Slovenia
Manufacturer Emrax

Design and development

The Emrax 228 is a brushless 130 volt design producing a peak of 100 kW (134 hp), 55 kW (74 hp) continuous, with an outrunner coil. It has a 98% 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][2]

Specifications (Emrax 228)

Data from Tacke and manufacturer[1][2]

General characteristics
  • Type: Brushless electric aircraft engine
  • Length: 86 mm (3.4 in)
  • Diameter: 228 mm (9.0 in)
  • Dry weight: 12 kg (26.5 lb)

Components

Performance
  • Power output: 100 kW (134 hp) peak, 55 kW (74 hp) continuous
  • Voltage: 130V nominal
  • Best efficiency: 98%
  • Power-to-weight ratio: 8.3 kW/kg

See also

Related lists

References
  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
  2. Emrax. "Emrax 228". emrax.com. Retrieved 29 April 2018.
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