1. Design and development

2. Specifications (EPOS+)

3. References

4. External links

The Evektor EPOS (Electric POwered Small aircraft), 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.^[1]

The aircraft first flew at the end of March 2013.^[1]

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.^[1]

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 powerlant 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. The batteries are Kokam Company, Ltd. SLPB100216216H cells, with 45 cells connected in series, producing 378 volts.^[1][2]

In February 2017 the company still described the design as "under development".^[2]

Specifications (EPOS+)

|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 battery containers, 316 kg (697 lbs) with four batteries.
|gross weight kg=600
|gross weight lb=
|gross weight note=
|fuel 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=
|range miles=
|range nmi=
|range note=
|endurance=1 hour with four battery units
|ceiling m=
|ceiling ft=
|ceiling note=
|g limits=
|roll rate=
|glide ratio=
|climb rate ms=
|climb rate ftmin=
|climb rate note=
|time to altitude=
|sink rate ms=
|sink rate ftmin=
|sink rate note=
|lift to drag=
|wing loading kg/m2=
|wing loading lb/sqft=
|wing loading note=
|power/mass=
|thrust/weight=
|more performance=
|avionics=
}}

References

External links

• {{Official website|http://www.evektoraircraft.com/en/sportstar-epos}}

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