2 decal variants:
1. Avia Ba.422.2 OK-AVC, František Novák, Meeting St. Germain-en-Laye, France 1938
2. Avia Ba.422.1, OK-AVB, Oldřich Košař, Beograd, 1938
The upper and lower wings have been modified to improve visibility when flying on their backs. The competition in France in April 1938 was a great duel of the lieutenant Novak and German acrobat von Hagenburg. Novák got the most points, but the controversial decision of the French referee penalized him for exceeding the time limit. After that, he completed a successful tour of France. Flight 422.1 OK-AVB was demonstrated in the summer of 1938 by pilot Oldřich Košař in Yugoslavia.