The Letov S.328 was used as a light bomber and reconnaissance plane.
Czechoslovakian Air Force
The Letov S.328 was in use by the Czechoslovakian Air Force from 1934 to 1939.
The Letov S.328s were confiscated by the Luftwaffe and used as trainers and were used until 1944.
The Bulgarians received some of the Letov S.328s from Germany.