1 decal variant:
1. Avia B-322 / Bš. 122.45/, Praha Kbely, říjen 1937
The first Bš-122 was flown on September 10, 1936, from July 1937 Bš-122 were assigned to the training squadron of the 4th Air Regiment and the VLU. A total of 45 pieces were produced. After the occupation, the machine was also used by the Luftwaffe and several pieces were sold to Bulgaria. Other prototypes were Bš-322 and B-322 / Bš.122.45 /. The B-322 had a covered cabin and the Rk-17 engine had a Townend-type ring cover.