Emrax 228
# 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.

## 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.

## Specifications (Emrax 228)

Data from Tacke and manufacturer

### 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

* Coil type: Outrunner
* Cooling system: air and/or liquid
* Reduction gear: none

### 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
