Evektor EPOS
{{Short description|Czech electric ultralight}}
{{Use dmy dates|date=February 2023}}
{{Use British English|date=February 2023}}
{{Notability|date=January 2023}}
| {{Infobox aircraft begin
| name= EPOS | image= | caption= }}{{Infobox aircraft type | type=Electric aircraft | national origin=Czech Republic | manufacturer=Evektor-Aerotechnik | designer= | first flight=March 2013 | introduced=2013 | retired= | status=Under development (2015) | primary user= | more users= | produced= | number built= | developed from= | variants with their own articles= }} |
The Evektor EPOS ("Electric powered small aircraft"),{{cite web | title=First flight of the SportStar EPOS | publisher=Evektor | date=28 March 2013| url=https://www.evektor.com/post/first-flight-of-the-sportstar-epos}} also called the SportStar EPOS, is a Czech electric ultralight and light-sport aircraft under development by Evektor-Aerotechnik of Kunovice. It was introduced at the AERO Friedrichshafen show in 2013.Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, page 48. Flying Pages Europe SARL, 2015. {{ISSN|1368-485X}}
Design and development
The EPOS is based upon the Evektor SportStar RTC, a Fédération Aéronautique Internationale microlight and CS-LSA light-sport aircraft. It uses the RTC model's fuselage, mated to a new wing of longer span. It features a cantilever low-wing, an enclosed cockpit with two-seats-in-side-by-side configuration under a bubble canopy, fixed tricycle landing gear and a single electric motor in tractor configuration.
The aircraft is predominantly made from aluminum sheet. The initial electric motor employed was the Rotex RE X907 of {{convert|67|hp|kW|0|abbr=on}} at 330 volts. In 2014 the design was upgraded with a Rotex RE BB 90-5, a brushless, DC, liquid-cooled powerplant that produces {{convert|100|hp|kW|0|abbr=on}} at 3,000 rpm and weighs {{convert|20|kg|lb|0|abbr=on}}. It is controlled by a MGM Compro HBC-Series V7, 300400/EPOS1 controller with a maximum continuous current of 300 amperes and a maximum supply voltage of 400 volts. Power is supplied by 4 battery containers each with 45 Kokam Company, Ltd. SLPB100216216H cells of 40Ah capacity{{Cite web|url=https://liionbms.com/pdf/kokam/SLPB100216216H.pdf|title=Cell Specification Data - SLPB 100216216H|publisher=Kokam Company, Ltd.}} connected in series, producing 378 volts.{{cite web|url = https://www.evektoraircraft.com/en/sportstar-epos|title = SportStar EPOS+|accessdate = 18 February 2017|author=Evektor-Aerotechnik|year = 2017}}
Specifications (EPOS+)
{{Aircraft specs
|prime units?=met
|genhide=
|crew=one
|capacity=one passenger
|length m=5.980
|length ft=
|length in=
|length note=
|span m=10.462
|span ft=
|span in=
|span note=
|height m=2.476
|height ft=
|height in=
|height note=
|wing area sqm=
|wing area sqft=
|wing area note=
|aspect ratio=
|airfoil=
|empty weight kg=285
|empty weight lb=
|empty weight note=without batteries, 316 kg (697 lbs) with four battery containers.
|gross weight kg=600
|gross weight lb=
|gross weight note=
|fuel capacity=7,200Ah (4 containers each with 45 cells of 40 Ah capacity)
|more general=
|eng1 number=1
|eng1 name=Rotex RE BB 90-5
|eng1 type=brushless, DC, liquid cooled electric motor
|eng1 kw=75
|eng1 hp=
|prop blade number=3
|prop name=VZLÚ model V332-3A1 composite
|prop dia m=1.625
|prop dia ft=
|prop dia in=
|prop note=
|perfhide=
|max speed kmh=
|max speed mph=
|max speed kts=140
|max speed note=
|cruise speed kmh=
|cruise speed mph=
|cruise speed kts=92
|cruise speed note=
|stall speed kmh=
|stall speed mph=
|stall speed kts=39
|stall speed note=
|never exceed speed kmh=
|never exceed speed mph=
|never exceed speed kts=
|never exceed speed note=
|range km=
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|endurance=1 hour with four battery containers, each with 45 cells
|ceiling m=
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|g limits=
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|climb rate ftmin=
|climb rate note=
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}}
References
{{reflist}}
External links
- {{Official website|https://www.evektoraircraft.com/en/sportstar-epos}}
{{Evektor-Aerotechnik aircraft}}
Category:2010s Czech ultralight aircraft