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] Design work was started in 1948 by Kai Mellen and Ilkka Lounanmaa under the direction of Professor Arvo Ylinen.

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

Data from Jane's all the World's Aircraft 1955-56[7] & [8]General characteristics Performance