A wooden training and competition glider, developed in 1952-53 at the Glider Research Centre in Bielsko-Biala by engineers Wladyslaw Okarmus, Zbigniew Badura and Jan Dyrek. It was created as a development of the IS-2 Mucha glider, designed by engineers Franciszek Kotowski and Irena Kaniewska, which first flew in 1948.
It was intended for cross-country and high-altitude flights, training flights and qualifying flights for the Gold Gliding Badge. The prototype with registration SP-1400 was first flown by Adam Zientek on 14 November 1953. Serial production was undertaken by the Sports Aviation Equipment Works No. 5 in Krosno.
Mucha 100 gliders were also produced in Gdansk and Wroclaw. In 1958, the improved Mucha 100A version entered production. It was a popular glider, well-liked by pilots. 290 examples were produced, of which 73 were exported to Switzerland, Italy, East Germany, the USSR and China. China undertook licensed production.
Restored gliders of this type are still flying today.
The exhibited example, serial number 95, SP-1463, was operated by the Krakow Aero Club from 1955 to 1978, and
subsequently donated to the collection of the Polish Aviation Museum.
| Wingspan | 15.0 m |
| Length | 7.0 m |
| Wing area | 15 m2 |
| Empty weight | 195 kg |
| Takeoff weight | 290 kg |
| Glide ratio | 24 at optimum speed of 70 km/h |
| Sink rate | min. 0.76 m/s at economy speed of 62 km/h |
| Minimum speed | 55 km/h |
| Max. dive speed | 220 km/h |
