Kubíček BB srs
The Kubíček BB Series were originally type certificated in the Czech Republic under CZ TC No. 93-01. (Kubíček Balloons was formed in 1989. Prior to that Mr Kubíček worked under the supervision of Aerotechnik, which was owned by the state military organization.)
The model designation reflects the size of the envelope in cu.m x 102 and the cutting style.
Note the latter was originally missing from the model designation of N-type balloons, but has been added at Change 5 of the TCDS. (Only O-type now have no suffix letter.)
The balloons are natural shaped polyester with either vertical gore or horizontal form (Z-type), and have a range of optional deflation systems. The Flight Manual Limitations Section 2 and the TCDS specifies approved envelope/burner/basket/fuel cylinder combinations. The Kubíček BB have traditional canework basket certified under EASA BA.003.