The production prototype, designated Viima II, was first flown by Jorma Visapää on October 12, 1937. Subsequently 20 production aircraft were ordered by the Ministry of Defense, all being delivered between July and December 1939. Another two were donated by the Finnish Air Defence Guild, while a third (civil) aircraft (ex OH-ILM/OH-VKJ c/n VI-5) was added in 1953 with serial VI-40. The sturdy aircraft had an exceptional long service with the Finnish AF, the last were withdrawn in the mid-sixties.
The pictured aircraft served with s/n VI-3, withdrawn from service it was sold and registered in Finland as OH-VIG on August 20, 1963, it was deregistered on 9 April, 1970. It appeared on the UK CAA Registry as G-BAAY on August 12, 1972, and after six consecutive owners it was sold to Belgium were it was registered OO-EBL.
Span: 30 ft 2.2 in (9.20 m)
Length: 24 ft 1.4 in (7.35 m)
Height: 8 ft 11.5 in (2.73 m)
Wing area: 215.3 sq.ft (20 sq.m)
Weight empty: 1,191 lb (540 kg)
Loaded weight: 1,929 lb (875 kg)
Max speed: 115 mph (185 kmh)
Cruise speed: 90 mph (145 kmh)
Landing speed: 47 mph (75 kmh)
Service ceiling: 14,764 ft (4,500 m)
Climb: to 9,842 ft (3,000 m) 19 min
Range: 435 mls (700 km)