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The PIK-3 (Polyteknikkojen Ilmailukerho – Finnish institute of technology students flying club) was a sailplane produced in Finland in the 1950s and 60s.Taylor 1989, p.726 It was designed to be a cheap and easy-to-build aircraftCoates 1978, p.24 to equip the country's gliding clubs as their standard single-seat machine.Hardy 1982, p.74 It was a conventional design for its day, with a high wing and conventional empennage. Construction was of wood throughout, skinned in plywood.
Design work commenced in 1942,"PIK-sarjan lentokoneet" but the prototype did not fly until 1950. Antti Koskinen refined the design for production as the PIK-3A and then further modified the design by replacing the flaps with air brakes, which was designated the PIK-3B.
By the end of the 1950s, a third modification of the original design was carried out by Olavi Roininen as the PIK-3C. This had completely new wings of 15 m (49 ft 3 in) to allow it to compete in the Standard Class. The prototype flew on 20 May 1958, and the design was then modified for production by Suomen Ilmailuliitto.
Variants PIK-3 – first prototype with wingspan of 13 m (47 ft 8 in) PIK-3A Kanttikolmonen – initial production version of PIK-3 PIK-3B – PIK-3A with air brakes in place of flaps PIK-3C Kajava – PIK-3B with new wings of 15 m (49 ft 3 in) span
Specifications (PIK-3c)
See also
Notes
References