Lange Antares
{{Short description|German single-seat motor glider, 2003}}
{{no footnotes|date=May 2019}}
| {{Infobox aircraft begin
|name=Antares |image=Lange Flugzeugbau Antares 20E.jpg |caption=Lange Aviation Antares 20E }}{{Infobox aircraft type |type=Open Class and 18 m Class sailplane |national origin=Germany |manufacturer=Lange Aviation GmbH |designer= |first flight=2003 |introduced= |retired= |status= |number built=50 as of April 2009 |developed from= |variants with their own articles=}} |
The Lange Antares is a glider built by Lange Aviation produced with three different wingspans, 18, 20 and 23 meters. The 20 and 23 meter variants can be equipped with a 42-kW electric motor and SAFT VL 41M lithium-ion batteries.
The EM 42 is a fixed-shaft brushless DC electric motor 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 two-blade fixed-pitch propeller, LF-P42, constructed of composite materials, having a diameter of two meters.
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 be 3000 cycles or 20 years. The capacity of the 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, and can climb 3,000 meters on one battery charge; in reality, in warm climates, motor and electronics temperature limitations can limit the achievable climb height. The charger is integrated inside the fuselage so when landing elsewhere the pilot merely has to find a (16A) electric outlet socket. The glider has a modem connected to its main computer so that Lange technicians can, in theory, run diagnostics remotely. The same modem allows the pilot remote control & monitoring of the battery charging process.
The undercarriage and engine doors are electro-hydraulically operated. The tailwheel is steerable. The wing has an elliptical planform, with winglets and wing-tip wheels. The glide polar shows excellent high speed performance.
Variants
- Antares 18S - 18 meter wingspan pure glider.
- Antares 18T - 18 meter wingspan glider with Solo 2350 two-stroke gasoline sustainer engine.
- Antares 20E - 20 meter wingspan with 42 kW electric self-launch capable engine.
- Antares 23E - 23 meter wingspan with 42 kW electric self-launch capable engine.
Specifications
=Antares 20E=
{{Aircraft specs
|prime units? = met
|crew=one pilot
|capacity=100 L water ballast
|length m=7.40
|length ft=24
|length in=3
|span m=20.00
|span ft=65
|span in=7
|height m=1.64
|height ft=5
|height in=5
|wing area sqm=12.6
|wing area sqft=135.6
|aspect ratio=31.7
|empty weight kg=460
|empty weight lb=1014
|gross weight kg=660
|gross weight lb=1455
|eng1 number=1
|eng1 name= Lange EM 42
|eng1 kw=42
|eng1 hp=57
|max speed kmh=280
|max speed mph=174
|glide ratio=56
|climb rate ms=4.4
|climb rate ftmin=866
|sink rate ms=0.49
|sink rate ftmin=96}}
=Antares 23E=
{{Aircraft specs
|prime units? = met
|crew=one pilot
|capacity=250 L water ballast
|length m=7.48
|length ft=24.54
|span m=23.00
|span ft=75.46
|height m=1.89
|height ft=6.2
|wing area sqm=14.75
|wing area sqft=158.76
|aspect ratio=38.26
|empty weight kg=510
|empty weight lb=1124
|gross weight kg=850
|gross weight lb=1873
||eng1 number=1
|eng1 name= Lange EM 42
|eng1 kw=42
|eng1 hp=57
|max speed kmh=280
|max speed mph=174
|glide ratio=60
|climb rate ms=4.0
|climb rate ftmin=787
|sink rate ms=0.48
|sink rate ftmin=94.5}}
See also
References
{{commons category|Antares 20E}}
- [http://www.lange-aviation.com/ Lange Aviation website]
- [https://web.archive.org/web/20081216043002/http://lange-aviation.com/htm/english/products/antares_20e/technical_data.html Specification of Antares 20E]
- [https://web.archive.org/web/20141027121230/http://www.lange-aviation.com/htm/deutsch/produkte/antares_23e/technische_daten.html Specification of Antares 23E]
- [https://web.archive.org/web/20110718205455/http://www.saftbatteries.com/doc/Documents/liion/Cube572/54042_VLM_cells_0305.d0d8d859-9174-42f2-84b2-19632e4b0760.pdf SAFT VL41M Data sheet]
- [https://web.archive.org/web/20180318184608/https://www.easa.europa.eu/sites/default/files/dfu/EASA-TCDS%20A%20092%20E1%20Antares%20issue%202.pdf E1 Antares Type-certificate data sheet]
- [http://www.easa.eu.int/ws_prod/c/doc/Design_Appro/Engines/TCDS_E_015_EA_42.pdf Lange EA 42 engine Type-certificate data sheet]{{dead link|date=December 2017 |bot=InternetArchiveBot |fix-attempted=yes }}
- [http://www.easa.eu.int/ws_prod/c/doc/Design_Appro/Propellers/TCDS_P_015_LF_P42.pdf LF-P42 propeller Type-certificate data sheet]{{dead link|date=December 2017 |bot=InternetArchiveBot |fix-attempted=yes }}
Category:2000s German sailplanes