Shortly after the end of WWII, the Military Vocational School for Aviation Mechanics (VOŠLM) was established in Liberec. The designers came up with the BAK-01, which set a world record in the H category at the time (1948 (1949?)) with a performance of 252 km/h. After VOŠLM moved to Slovakia the project was shelved and BAK-01 stored. In 1969 the plane was acquired by VHU, the Czech Institute for Military History (the agency that runs (amongst others) the museum at Kbely). Upon restoration, it was placed on display at Kbely but in 2017 moved to the excellent Liberec Technical Museum.