Ardpol 48-012 BĄK II

Bąk I and II were Polish sports-performance motor gliders with a wooden structure in the dorsal wing configuration. The drive - in Bąk II - was provided by a single engine Sarolea "Albatros" with 32 HP. The flight of the prototype took place in 1938, and serial production continued in 1938-1939. In total, by September 1939, about 10 Bąk I and Bąk II motor gliders had been built

The Bąk I and II motor gliders were developed by Eng. Antoni Kocjan, whose design was similar to the pre-war Mewa and Orlik gliders. Moto sailplanes differed primarily in the engines they used: Bąk I was powered by an 18 HP engine, and Bąk II - 32 HP. Both types of motor gliders turned out to be avant-garde constructions, using many technical and technological innovations that were ahead of the competition by several or several years. Many international aviation records in the motor glider class, such as altitude and flight duration, have been established on them. These great constructions were used in the years 1938-1939 by gliding schools in Poland, and their licensed production was undertaken by plants in Estonia. The outbreak of World War II destroyed the possibility of developing the structure and its further production.