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PIK-11 Tumppu
PIK-11 Tumppu.JPG
PIK-11 Tumppu in Finnish Aviation Museum
Role Sport aircraft
National origin Finland
Manufacturer Polyteknikkojen Ilmailukerho
First flight 15 March 1953
Number built 4

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]


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)


  • Maximum speed: ~280 km/h (175 mph)


  1. ^ a b Taylor 1989, p.726
  2. ^ a b c d "PIK-sarjan lentokoneet"
  3. ^ "Item Collection: Aircraft"
  4. ^ Summary of the Finnish Aircraft Register 2008, Part I page 44
  5. ^ <"Lentokoneen rakennusprojekti PIK-11 'Tumppu'"