LIBIS KB-6

KB-6 Matajur

Role	Two-seat light trainer and touring aircraft
Designer	Letalski Institut Branko Ivanus Slovenija
First flight	1952
Variants	LIBIS KB-11

The LIBIS KB-6 Matajur was a 1950s Yugoslavian two-seat light monoplane designed by Letalski Institut Branko Ivanus Slovenija.

Design and development

The aircraft design office of the Letalski Institut Branko Ivanus Slovenija brought together teachers and students of the Ljubljana technical high school. The design office designed the KB-6 Matajur which was a two-seat light trainer and tourer that first flew on 4 June 1952. The KB-6 was a cantilever low-wing monoplane with fixed tailwheel landing gear and an enclosed cockpit with side-by-side seating and dual controls. The aircraft was produced for use in aero-clubs until the mid-1960s.

Variants

KB-6 Matajur: Main production variant powered by a 136hp (101kw) Regnier 4L.00 inline engine.
KB-6T Matajur-Trised: Three-seat development powered by a Walter Minor 6-III-J inline engine, eight built.
LIBIS 160: Further developed version of the KB-6T with swept vertical tail, 11 built.

Specifications (KB-6)

Data from Jane's All The World's Aircraft 1953-54^[1]

General characteristics

Crew: Two
Length: 8.83 m (27 ft 5 in)
Wingspan: 10.60 m (34 ft 9¼ in)
Height: 2.15 m (7 ft 0¾ in)
Wing area: 14.0 m² (150.70 ft²)
Empty weight: 659 kg (1,453 lb)
Gross weight: 979 kg (2,159 lb)
Powerplant: 1 × Régnier 4L00 inverted four-cylinder air-cooled inline piston, 101 kW (136 hp)

Performance

Maximum speed: 222 km/h (138 mph)
Cruising speed: 200 km/h (124 mph)
Range: 820 km (510 miles)
Service ceiling: 4,500 m (14,800 ft)
Rate of climb: 3.5 m/s (689 ft/min)

Notes

↑ Bridgman 1953, pp.279-280.

References

The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985). Orbis Publishing.
Bridgman, Leonard (ed.) (1953). Jane's All The World's Aircraft 1953-54. London: Jane's.