Karhumäki Karhu 48 (Bear 48) is a Finnish 1940s four-seat touring aircraft designed and built by Karhumäki brothers. In the terms of weight and payload, it is the largest Finnish civilian aircraft ever built.
History[edit | edit source]
In the aftermath of World War II the Karhumäki factory in Kuorevesi was in need of work, so in 1946-1947 a new touring aircraft was designed. Two prototypes were built by 1948 with the first one, coded OH-VKK, making its maiden flight on 20 July 1948. OH-VKK was nicknamed "Nalle" (Little Bear) while the the second prototype OH-VKL was known as "Tavi" (Eurasian Teal). In 1951 OH-VKL was given new wings to improve its flying characteristics, and its designation was changed into Karhu 48B.
OH-VKK was cannibalized for spare parts from 1952 onwards and mostly scrapped in 1960. OH-VKL was retired in 1973.
Survivors[edit | edit source]
- OH-VKL is at the Finnish Aviation Museum in Vantaa.
- The bare fuselage of OH-VKK is at the Hallinportti Aviation Museum in Jämsä.
Variants[edit | edit source]
- Karhu 48: The original prototype.
- Karhu 48B: New wings.
Specifications[edit | edit source]
- 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)
- Max takeoff weight: 1,310 kg (2,888 lb)
- Powerplant: 1 × Avco Lycoming O-435A 6-cyl. air-cooled horizontally-opposed piston engine, 190 hp kW (140 kW)
- Propeller: 2-bladed Aeromatic 220 variable-pitch
- 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)