Evektor EPOS
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The Evektor EPOS ("Electric powered small aircraft"), also called the SportStar EPOS, is a Czech
electric Electricity is the set of physical phenomena associated with the presence and motion of matter possessing an electric charge. Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described by Maxwel ...
ultralight Ultralight aviation (called microlight aviation in some countries) is the flying of lightweight, 1- or 2-seat fixed-wing aircraft. Some countries differentiate between weight-shift control and conventional three-axis control aircraft with aile ...
and
light-sport aircraft A light-sport aircraft (LSA), or light sport aircraft, is a category of small, lightweight aircraft that are simple to fly. LSAs tend to be heavier and more sophisticated than ultralight (aka "microlight") aircraft, but LSA restrictions on weigh ...
under development by
Evektor-Aerotechnik Evektor-Aerotechnik is a Czech aircraft manufacturer based in Kunovice, Czech Republic. The company produces a range of light sport aircraft, training, advanced ultralight aircraft and electric aircraft. Evektor-Aerotechnik is also develop ...
of
Kunovice Kunovice (; ) is a town in Uherské Hradiště District in the Zlín Region of the Czech Republic. It has about 5,600 inhabitants. Geography Kunovice forms a conurbation with neighbouring Uherské Hradiště. It lies on the border between the Viz ...
. It was introduced at the
AERO Friedrichshafen AERO Friedrichshafen is a trade show dedicated to European general aviation. It is held yearly in April on the shores of Lake Constance at the exhibition center of Friedrichshafen, Germany Germany, officially the Federal Republic of Ger ...
show in 2013.Tacke, Willi; Marino Boric; et al: ''World Directory of Light Aviation 2015-16'', page 48. Flying Pages Europe SARL, 2015. The aircraft first flew at the end of March 2013.


Design and development

The EPOS is based upon the Evektor SportStar RTC, a
Fédération Aéronautique Internationale The World Air Sports Federation (; FAI) is the world governing body for air sports, and also stewards definitions regarding human spaceflight. It was founded on 14 October 1905, and is headquartered in Lausanne, Switzerland. It maintains worl ...
microlight and CS-LSA light-sport aircraft. It uses the RTC model's
fuselage The fuselage (; from the French language, French ''fuselé'' "spindle-shaped") is an aircraft's main body section. It holds Aircrew, crew, passengers, or cargo. In single-engine aircraft, it will usually contain an Aircraft engine, engine as wel ...
, mated to a new wing of longer span. It features a cantilever
low-wing A monoplane is a fixed-wing aircraft configuration with a single mainplane, in contrast to a biplane or other types of multiplanes, which have multiple wings. A monoplane has inherently the highest efficiency and lowest drag of any wing config ...
, an enclosed cockpit with two-seats-in-
side-by-side configuration Tandem, or in tandem, is an arrangement in which two or more animals, machines, or people are lined up one behind another, all facing in the same direction. ''Tandem'' can also be used more generally to refer to any group of persons or objects w ...
under a
bubble canopy A bubble canopy is an aircraft canopy constructed without bracing, for the purpose of providing a wider unobstructed field of view to the pilot, often providing 360° all-round visibility. The designs of bubble canopies can vary drastically; so ...
, fixed
tricycle landing gear Tricycle gear is a type of aircraft undercarriage, or ''landing gear'', that is arranged in a tricycle fashion. The tricycle arrangement has one or more nose wheels in a single front undercarriage and two or more main wheels slightly aft of th ...
and a single
electric motor An electric motor is a machine that converts electrical energy into mechanical energy. Most electric motors operate through the interaction between the motor's magnetic field and electric current in a electromagnetic coil, wire winding to gene ...
in
tractor configuration In aviation, a tractor configuration is a propeller-driven fixed-wing aircraft with its engine mounted with the propeller in front, so that the aircraft is "pulled" through the air. This is the usual configuration; the pusher configuration ...
. The aircraft is predominantly made from
aluminum Aluminium (or aluminum in North American English) is a chemical element; it has chemical symbol, symbol Al and atomic number 13. It has a density lower than that of other common metals, about one-third that of steel. Aluminium has ...
sheet. The initial electric motor employed was the Rotex RE X907 of at 330 volts. In 2014 the design was upgraded with a Rotex RE BB 90-5, a brushless, DC, liquid-cooled powerplant that produces at 3,000 rpm and weighs . 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 Capacity or capacities may refer to: Mathematics, science, and engineering * Capacity of a container, closely related to the volume of the container * Capacity of a set, in Euclidean space, the total charge a set can hold while maintaining a giv ...
connected in series, producing 378 volts.


Specifications (EPOS+)


References


External links

* {{Evektor-Aerotechnik aircraft EPOS 2010s Czech ultralight aircraft Light-sport aircraft Single-engined tractor aircraft Electric aircraft