It was designed in 1929. The design was similar to De Havilland Gipsy Moth. Of conventional biplane configuration, wooden construction, it featured wings that could be folded to allow it to be towed to and from airfields by automobile (width 2.91 m).
A prototype (registration L-BASO) had an 85 hp Walter Vegaradial engine. It took part in the Challenge 1929 international contest (piloted by Josef Novak), but had to withdraw due to engine failure and crash landing on August 8, 1929.
Seven A.34s and its variants were built, with different engines: three A.34J had the Walter Junior engine, and three A.134 the 100 hp Walter Venus. They were used as trainers and sportsplanes in Czechoslovak civilian and military aviation.