The Rolandas Kalinauskas RK-5 Ruth, also called the Viltis ( en, hope), is a

Lithuania Lithuania (; lt, Lietuva ), officially the Republic of Lithuania ( lt, Lietuvos Respublika, links=no ), is a country in the Baltic region of Europe. It is one of three Baltic states and lies on the eastern shore of the Baltic Sea. Lithuania ...

n light aircraft, designed and produced by Rolandas Kalinauskas, of Prienai. The aircraft is supplied as a complete ready-to-fly-aircraft.Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', page 168. WDLA UK, Lancaster UK, 2011. ISSN 1368-485XTacke, Willi; Marino Boric; et al: ''World Directory of Light Aviation 2015-16'', page 158. Flying Pages Europe SARL, 2015.

Design and development

The RK-5 is derived from the Rolandas Kalinauskas RK-3 Wind. The RK-5 features a

strut-braced In aeronautics, bracing comprises additional structural members which stiffen the functional airframe to give it rigidity and strength under load. Bracing may be applied both internally and externally, and may take the form of strut, which act in ...

high wing, a four-seat enclosed cabin accessed via doors, fixed tricycle landing gear and a single engine in tractor configuration. The aircraft fuselage is made from welded steel tubing supplemented by wooden stringers, while the wing is of wooden structure, all covered in doped aircraft fabric. The span wing has an area of and mounts flaps. The wing is supported by a single strut on each side with a single jury strut. The standard engine employed is the Avia M 332 four-cylinder, inverted, air-cooled,

supercharged In an internal combustion engine, a supercharger compresses the intake gas, forcing more air into the engine in order to produce more power for a given displacement. The current categorisation is that a supercharger is a form of forced induct ...

, inline,

four-stroke A four-stroke (also four-cycle) engine is an internal combustion (IC) engine in which the piston completes four separate strokes while turning the crankshaft. A stroke refers to the full travel of the piston along the cylinder, in either directio ...

powerplant. The aircraft has an empty weight of and a gross weight of , giving a useful load of . It is supplied with a wide range of standard equipment, including leather seats and tinted windows.

Specifications (RK-5)

References

External links

* {{Rolandas Kalinauskas aircraft 2000s Lithuanian ultralight aircraft Single-engined tractor aircraft