The first prototype Żak-1 was first flown on March 23, 1947. It was powered by the Czechoslovak 65 hp straight engine Walter Mikron III and carried markings SP-AAC.
The first Żak-1 model made its maiden flight on March 23, 1947. Powered by a 65-horsepower Czechoslovakian engine called Walter Mikron III, it was identified with the call sign SP-AAC.