Lange Antares 20E
| Antares 20E | |
|---|---|
 | |
| Lange Flugzeugbau Antares 20E | |
| Role | Open Class sailplane |
| National origin | Germany |
| Manufacturer | Lange Aviation GmbH |
| First flight | 2003 |
| Number built | 50 as of April 2009 |
The Antares 20E is a self-launching motor glider with a 42-kW electric motor and SAFT VL 41M lithium-ion batteries. It can climb to 3,000 meters on one battery charge.
The EM 42 is a fixed-shaft brushless DC electric motor (see Lange EA 42) running at 190-288 V, and drawing up to 160 A, the 42 kW motor can deliver up to 216 N.m of torque over a speed range of 160-1600 RPM with a total efficiency of 90%. Maximum continuous power is 38.5 kW, the motor weighs 29 kg, and the weight of power electronics is 10 kg. The motor turns a 2-blade fixed-pitch propeller LF-P42 constructed of composite materials with 2.00 m diameter.
The battery system consists of two battery packs positioned in the leading edges of both inner wings (72 cells divided into 24 modules containing 3 cells each). The battery life is expected to 3000 cycles or 20 years. Capacity of battery is 41 Ah (specific energy 136 Wh/kg and specific peak power 794 W/kg). The batteries can deliver 13 minutes at maximum power and maximum climb speed. The charger is integrated inside the fuselage so when landing elsewhere the pilot merely has to find an electric outlet socket. The glider has a modem connected to its main computer so that technicians can run diagnostics remotely.
The undercarriage is hydraulically operated. The tailwheel is steerable.
Specifications
General characteristics
Performance
References
- Lange Aviation website
- Specification of Antares 20E
- SAFT VL41M Data sheet
- E1 Antares Type-certificate data sheet
- Lange EA 42 engine Type-certificate data sheet
- LF-P42 propeller Type-certificate data sheet
Retrieved from : http://en.wikipedia.org/wiki/Lange_Antares_20E
