• Source: LIBIS KB-6

The LIBIS KB-6 Matajur was a 1950s Slovenian two-seat light monoplane designed and produced by LIBIS aircraft during Yugoslavian period.




Design and development


The aircraft design office of LIBIS 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 135 hp (101 kW) Regnier 4L.00 inline engine.
KB-6T Matajur-Trised
Three-seat development powered by a 160 hp (120 kW) 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 1953-54General characteristics
Crew: 2
Length: 8.36 m (27 ft 5 in)
Wingspan: 10.60 m (34 ft 9 in)
Height: 2.15 m (7 ft 1 in)
Wing area: 14.0 m2 (151 sq ft)
Aspect ratio: 8:1
Empty weight: 659 kg (1,453 lb)
Gross weight: 979 kg (2,158 lb)
Fuel capacity: 141 L (37 US gal; 31 imp gal)
Powerplant: 1 × Régnier 4L.00 inverted four-cylinder air-cooled inline piston engine, 101 kW (135 hp)
Propellers: 2-bladed fixed pitch wooden propeller, 1.95 m (6 ft 5 in) diameter
Performance

Maximum speed: 222 km/h (138 mph, 120 kn) at sea level
Cruise speed: 200 km/h (120 mph, 110 kn)
Stall speed: 88 km/h (55 mph, 48 kn) (flaps down)
Range: 820 km (510 mi, 440 nmi)
Service ceiling: 4,500 m (14,800 ft)
Rate of climb: 3.50 m/s (689 ft/min)




Notes






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.
Taylor, John W R (1964). Jane's All the World's Aircraft 1964-65. London: Sampson Low, Marston & Co. Ltd.

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