PIK-11

The PIK-11 Tumppu ("Mitten") was a single-seat, single-engine sport aircraft developed in Finland in the 1950s.^[1] It was a low-wing, cantilever monoplane of conventional design with an enclosed cockpit and fixed, tailwheel undercarriage.^[2] It was to be the first powered aircraft produced by Polyteknikkojen Ilmailukerho,^[1] with the objective being building an aircraft for club use that was cheap to build and easy to fly.^[2]

Design work was started in 1948 by Kai Mellen and Ilkka Lounanmaa under the direction of Professor Arvo Ylinen.^[2] The first of four machines made its first flight on 15 March 1953.^[2] The prototype is preserved at the Finnish Aviation Museum,^[3] and another example was still listed on the Finnish Civil Aviation Authority registry in 2008.^[4]

In the early 21st century, a flying replica was under construction, to be powered by a Rotax 912 engine.^[5]

Specifications

Data from "Lentokoneen rakennusprojekti PIK-11 'Tumppu'"

General characteristics

• Crew: One
• Length: 5.40 m (17 ft 9 in)
• Wingspan: 8.00 m (26 ft 3 in)
• Height: 2.60 m (8 ft 6 in)
• Empty weight: 250 kg (550 lb)
• Gross weight: 415 kg (913 lb)
• Powerplant: 1 × Continental A65, 49 kW (65 hp)

Performance

• Maximum speed: ~280 km/h (175 mph)

Notes

References

• "Aircraft". The Finnish Aviation Museum website. Retrieved 2009-01-12. 
• "Lentokoneen rakennusprojekti PIK-11 'Tumppu'". Vaasan Lentokerho website. Retrieved 2009-01-12. 
• "PIK-sarjan lentokoneet". Polyteknikkojen Ilmailukerho website. Retrieved 2009-01-12. 
• "Summary of the Finnish Aircraft Register". Finnish Civil Aviation Authority website. Retrieved 2009-01-12. 
• Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions.