Karhumäki Karhu 48B

The Karhumäki Karhu 48B was a Finnish 1950s four-seat monoplane.

Karhu 48B
Karhumäki Karhu 48B in Finnish Aviation Museum
Role	Light aircraft
Manufacturer	Veljekset Karhumäki O/Y
First flight	1948

Development

The Veljekset Karhumäki O/Y company had been formed in 1924 and concerned itself with licence manufacturing. In 1948 the company designed and built a prototype of the Karhu 48, a high-wing four-seat monoplane of mixed construction, with a fabric-covered steel-tube fuselage and fabric-covered wooden wings. This was followed up in 1949 with a second example, the Karhu 48B. A small number were built including a number on floats.

Specifications (Karhu 48B)

Data from Jane's All The World's Aircraft 1955–56

General characteristics

• Crew: 1
• Capacity: 3 passengers
• Length: 7.85 m (25 ft 9 in) (landplane)
• Wingspan: 11.54 m (37 ft 10 in)
• Wing area: 17.31 m² (186.3 sq ft)
• Empty weight: 813 kg (1,792 lb)
• Max takeoff weight: 1,310 kg (2,888 lb)
• Powerplant: 1 × Avco Lycoming O-435A 6-cyl. air-cooled horizontally-opposed piston engine, 140 kW (190 hp)
• Propellers: 2-bladed Aeromatic 220 variable-pitch

Performance

• Maximum speed: 229 km/h (142 mph, 124 kn)
• Cruise speed: 186 km/h (116 mph, 100 kn)
• Range: 700 km (430 mi, 380 nmi)
• Service ceiling: 4,800 m (15,700 ft)

References

• Bridgman, Leonard (1955). Jane's All The World's Aircraft 1955–56. New York: The McGraw Hill Book Company.
• Green, William; Pollinger, Gerald (1965). The Aircraft of the World (3rd ed.). London: Macdonald & Co. (Publishers) Ltd.
• Gunston, Bill (2005). World Encyclopedia of Aircraft Manufacturers (2nd ed.). Stroud, UK: Sutton Publishing Ltd. ISBN 0-7509-3981-8.
• The Illustrated Encyclopedia of Aircraft (Part Work 1982–1985). Orbis Publishing.