Evektor EPOS

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EPOS
Role Electric aircraft
National origin Czech Republic
Manufacturer Evektor-Aerotechnik
First flight March 2013
Introduction 2013
Status Under development (2015)

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 of 67 hp (50 kW) at 330 volts. In 2014 the design was upgraded with a , a brushless, DC, liquid cooled powerplant that produces 100 hp (75 kW) at 3,000 rpm and weighs 20 kg (44 lb). 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+)[]

Data from Tacke and manufacturer[1][2]

General characteristics

  • Crew: one
  • Capacity: one passenger
  • Length: 5.980 m (19 ft 7 in)
  • Wingspan: 10.462 m (34 ft 4 in)
  • Height: 2.476 m (8 ft 1 in)
  • Empty weight: 285 kg (628 lb) without battery containers, 316 kg (697 lbs) with four batteries.
  • Gross weight: 600 kg (1,323 lb)
  • Powerplant: 1 × brushless, DC, liquid cooled electric motor, 75 kW (101 hp)
  • Propellers: 3-bladed model V332-3A1 composite, 1.625 m (5 ft 4 in) diameter

Performance

  • Maximum speed: 260 km/h (160 mph, 140 kn)
  • Cruise speed: 170 km/h (106 mph, 92 kn)
  • Stall speed: 72 km/h (45 mph, 39 kn)
  • Endurance: 1 hour with four battery units

References[]

  1. ^ a b c d e Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, page 48. Flying Pages Europe SARL, 2015. ISSN 1368-485X
  2. ^ a b c Evektor-Aerotechnik (2017). "SportStar EPOS+". Retrieved 18 February 2017.

External links[]

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