The PIK-20 is a Standard Class sailplane designed at the Helsinki University of Technology by Pekka Tammi with advice from Ilkka Rantasalo and Raimo Nurminen. The prototype first flew in October 1973. It was produced initially by Molino Oy who were taken over by Eiri-Avion Oy between 1974 and 1980. Later production was taken over by the French company Siren SA under the name Siren PIK-20. The first models were notable for using flaps instead of air-brakes for approach control.
Made by Eiri-Avion.