During 1937, the superb performance of the B-534 was demonstrated at a flying exhibition. The aircraft was tested against the best in the world at the IV International Air Meeting at Zurich's Dübendorf airport. The B-534 entered three of the competitions. The first of these tested climbing and diving. A GermanBf 109 took first place and a Henschel Hs 123 pilot pushed his biplane to claim second. The B-534 took the next three positions. The 534 outflew every other fighter participating, bar the Messerschmitt Bf 109 – and even then, the Avia was only 11 km/h slower than the German aircraft. Four subtypes were produced during the B-534's production run, all with mostly minor improvements.