The VL-3 Evolution also called the Aveko VL-3 Sprint is a

Czech Czech may refer to: * Anything from or related to the Czech Republic, a country in Europe ** Czech language ** Czechs, the people of the area ** Czech culture ** Czech cuisine * One of three mythical brothers, Lech, Czech, and Rus' Places * Czech, ...

ultralight aircraft, designed and initially produced by Aveko of Brno. The design is now produced by JMB Aircraft of Choceň. The aircraft was originally supplied by Aveko complete ready-to-fly, but is now owner-completed through a factory assistance program.Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', page 30. WDLA UK, Lancaster UK, 2011. ISSN 1368-485XTacke, Willi; Marino Boric; et al: ''World Directory of Light Aviation 2015-16'', page 64. Flying Pages Europe SARL, 2015.

Design and development

The aircraft was designed to comply with the Fédération Aéronautique Internationale microlight rules. 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 planes. A monoplane has inherently the highest efficiency and lowest drag of any wing confi ...

a two-seats-in-

side-by-side configuration Tandem, or in tandem, is an arrangement in which a team of machines, animals or people are lined up one behind another, all facing in the same direction. The original use of the term in English was in ''tandem harness'', which is used for two ...

enclosed cockpit, fixed or retractable

tricycle landing gear Tricycle gear is a type of aircraft undercarriage, or ''landing gear'', arranged in a tricycle fashion. The tricycle arrangement has a single nose wheel in the front, and two or more main wheels slightly aft of the center of gravity. Tricycle g ...

and a single engine in

tractor configuration In aviation, the term tractor configuration refers to an aircraft constructed in the standard configuration with its engine mounted with the propeller in front of it so that the aircraft is "pulled" through the air. Oppositely, the pusher co ...

. The aircraft is made from composites. Its span wing has a small wing area of . The standard engine is the

Rotax 912ULS The Rotax 912 is a horizontally-opposed four-cylinder, naturally aspirated, four-stroke aircraft engine with a reduction gearbox. It features liquid-cooled cylinder heads and air-cooled cylinders. Originally equipped with carburetors, later ...

four-stroke powerplant. A fixed gear version with a larger wing span and area as well as a higher gross weight was developed for the US light-sport aircraft category and was marketed from about 2009 to 2016 by Gobosh Aviation as the Gobosh 800XP. By 2016 the Gobosh Aviation company website had been taken down and the company had likely gone out of business.

Operational history

A VL-3 set a world two-seat ultralight class record of in 2005.

Variants

;VL-3 FG :Fixed landing gear model ;VL-3 RG :Retractable landing gear model ;VL-3C-1 :Model with fixed landing gear and a slower wing and take-off weight for the light-sport aircraft category.

Specifications (VL-3 Sprint)

References

External links

*{{Official website, http://www.jmbaircraft.com/ 2000s Czech ultralight aircraft Single-engined tractor aircraft