LIBIS KB-11
| KB-11 Branko | |
|---|---|
| |
| Role | Four-seat light trainer and tourer |
| Manufacturer | LIBIS aircraft (Letalski inštitut Branko Ivanuš Slovenija) |
| First flight | 1959 |
The LIBIS KB-11 Branko was a 1950s Slovenian four-seat monoplane designed and produced by LIBIS aircraft during Yugoslavian period.
Design and development
[edit]The aircraft design office of the LIBIS aircraft (Letalski Inštitut Branko Ivanuš Slovenija) brought together teachers and students of the Ljubljana technical high school. The KB-11 Branko was a development of the earlier two-seat KB-6 Matajur. First flown in December 1959 the KB-11 was an all-metal cantilever low-wing monoplane with retractable tricycle landing gear and an enclosed heated and ventilated cockpit for four persons. It was intended for use as an air-taxi or for business use but only small numbers were built.
Specifications (KB-11)
[edit]Data from Observer's Book of Aircraft 1962[1]
General characteristics
- Crew: 1
- Capacity: 4 total
- Length: 8.23 m (27 ft 0 in)
- Wingspan: 10.59 m (34 ft 9 in)
- Height: 2.45 m (8 ft 0 in)
- Wing area: 1.152 m2 (12.40 sq ft) [2]
- Aspect ratio: 7.76:1[2]
- Airfoil: NACA 3415 at root, USA 35B at tip[2]
- Empty weight: 800 kg (1,764 lb)
- Gross weight: 1,250 kg (2,756 lb) normal loaded without tip tanks
- Powerplant: 1 × Lycoming O-435-1 6-cylinder horizontally opposed, 138 kW (185 hp)
Performance
- Maximum speed: 214 km/h (133 mph, 116 kn) at sea level
- Cruise speed: 171 km/h (106 mph, 92 kn) at 1,525 m (5,000 ft) and 75% power
- Stall speed: 98 km/h (61 mph, 53 kn) [2]
- Range: 950 km (590 mi, 510 nmi) [2]
- Service ceiling: 5,300 m (17,500 ft)
- Rate of climb: 4.3 m/s (850 ft/min)
Notes
[edit]References
[edit]- Taylor, John W. R (1961). Jane's All The World's Aircraft 1961–62. London: Sampson Low, Marston & Company.
- Green, William (1962). Observer's book of aircraft (1962 ed.). London: Frederick Warne & Co. Ltd.
- The Illustrated Encyclopedia of Aircraft (Part Work 1982–1985). Orbis Publishing.
See also
[edit]
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