| Lange EA 42 | |
|---|---|
| Type | Electrical aero-engine | 
| National origin | Germany | 
| Manufacturer | Lange Aviation | 
| First run | 1995 | 
| Major applications | Lange Antares 20E | 
The Lange EA 42 is an electrical aero engine designed for self launching gliders.[1] 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.[1] 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

Antares 20E
Specifications (EA 42)
EM42 electrical engine
Data from TCDS[1]
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)
 
References
- 1 2 3 "Type Certificate Data Sheet EA E-015 EA 42 series engines". European Aviation Safety Agency. 31 January 2006. Retrieved 1 May 2018.
 
External links
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