The Ivanov ZJ-Viera (Faith) 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 *Czech (surnam ...

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 ...

that was designed by Marek Ivanov and produced by Ivanov Aero s.r.o. of

Hradec Králové Hradec Králové (; ) is a city of the Czech Republic. It has about 94,000 inhabitants. It is the capital of the Hradec Králové Region. The historic centre of Hradec Králové is well preserved and is protected as an Cultural monument (Czech R ...

. The aircraft was supplied as a kit for amateur construction or complete and ready-to-fly.Tacke, Willi; Marino Boric; et al: ''World Directory of Light Aviation 2015-16'', page 63. Flying Pages Europe SARL, 2015. Ivanov Aero seems to have been founded about 2008 and gone out of business in 2016. The design is apparently out of production.

Design and development

The ZJ-Viera was designed to comply with the European single seat deregulated rules and US

FAR 103 Ultralight Vehicles Ultralight aircraft exist outside of the United States. In most countries, ultralights are a class of aircraft. A completely different legal concept is valid within the USA. The FAA makes explicitly clear that ultralight vehicles are not air ...

rules, with an empty weight of just . 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 ...

, a single-seat open cockpit with a windshield, fixed monowheel landing gear with wingtip wheels, or optionally

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 engine 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 ...

, mounted on a short nose pylon. The aircraft is made from

composite materials A composite or composite material (also composition material) is a material which is produced from two or more constituent materials. These constituent materials have notably dissimilar chemical or physical properties and are merged to create a ...

. Its span wing has an area of and the design has a swept

cruciform tail The cruciform tail is an aircraft empennage configuration which, when viewed from the aircraft's front or rear, looks much like a cross. The usual arrangement is to have the tailplane, horizontal stabilizer intersect the vertical tail somewhere ...

. The standard engine used is the

Hirth F-33 The Hirth F-33 is a Single cylinder engine, single cylinder, two stroke, carburetor, carburetted aircraft engine designed for use on ultralight aircraft, including Powered paragliding, powered paragliders and ultralight trikes. the engine is n ...

two-stroke A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a power cycle with two strokes of the piston, one up and one down, in one revolution of the crankshaft in contrast to a four-stroke engine which re ...

powerplant, although a engine can be used. Before the company went out of business in late 2013, InterPlane Aircraft acted as distributor for the design, touting it for the US FAR 103 Ultralight category and the

category. As of February 2017, the design does not appear on the

Federal Aviation Administration The Federal Aviation Administration (FAA) is a Federal government of the United States, U.S. federal government agency within the United States Department of Transportation, U.S. Department of Transportation that regulates civil aviation in t ...

's list of approved special light-sport aircraft.

Operational history

Reviewer Marino Boric described the design in a 2015 review as "the dream of ultralighting returns, but with a 21st century feel! Ultralight on the wallet, too, thanks to a combination of simple design and modern all-composite construction...this airplane shows every sign of becoming a landmark design".

Specifications (ZJ-Viera)

References

External links

Official website archives
on

Archive.org The Internet Archive is an American non-profit organization founded in 1996 by Brewster Kahle that runs a digital library website, archive.org. It provides free access to collections of digitized media including websites, software applic ...

{{InterPlane Aircraft InterPlane aircraft 2000s Czech ultralight aircraft Homebuilt aircraft Light-sport aircraft Single-engined tractor aircraft