Lange EA 42
# Lange EA 42

The Lange EA 42 is an electrical aero engine designed for self launching gliders. It is produced in Germany by Lange Aviation for their Antares 20E glider.

## Development

The EA 42 combines an EM 42 brushless 42 kW electric external rotor motor with a related engine control system and power electronics. The motor drives a two-bladed composite fixed pitch propeller with a diameter of 2 m (7 ft). It is powered by a battery pack.

## Applications

* Lange Antares 20E
* Lange Antares 23E
* Schempp-Hirth Arcus E

## Specifications (EA 42)

### EM42 electrical engine

Data from TCDS

### General characteristics

* Type: Brushless electric aircraft engine
* Length: 272 mm (10.7 in)
* Diameter: 250 mm (9.8 in)
* Dry weight: 29.12 kg (64.2 lb)

### Components

* Coil type: Outrunner
* Cooling system: air
* Reduction gear: none

### Performance

* Power output: 38.5 kW (52 hp)
* Voltage: V nominal
* Power-to-weight ratio: 1.3 kW/kg

### LE 42 power electronics

* Length: 422 mm (16.6 in)
* Width: 169 mm (6.7 in)
* Height: 208 mm (8.2 in)
* Mass: 9.58 kg (21.12 lb)
