The Czechoslovak Military Aircraft Factory, known under the trade name Letov, was one of the main suppliers of military aircraft to the Czechoslovak army. At the end of the 1930s, the main focus of Letov's production was the supply of Letov Š.328 multi-purpose biplanes. The Czechoslovak army ordered the first batch in 1934 and received the machines the following year. Seven Š.328 production batches were ordered in succession, but the last one was already ordered by the German occupiers. The individual series differed in equipment and armament. The main change, first implemented on the III. batch, was the replacement of the aluminium-made turtledeck with a plywood one covered with fabric. The Avia VR-36 inline engined Š.428 remained just a prototype.
The Czechoslovak army considered, in the intentions of the time, Š.328 as a multi-purpose aircraft, capable of pursuit (bombers or night pursuit), bombing, reconnaissance or combat operations. Until the occupation of the republic in 1939, they formed the main armament of observation and light bomber squadrons. At that time, they were of course already obsolete and their replacement with more modern types was expected.
However, four examples of the Letov Š.328 differed significantly from the others. In the entire history of the Czechoslovak Air Force, these machines were exceptional. They were intended for towing targets. However, because, due to the agreement with the Kingdom of Yugoslavia, the gunnery exercises took place over the Adriatic in the Bay of Kotor (Boka Kotorska), these machines were equipped with a pair of Short floats. In the winter months, they were used in Czechoslovakia with a classic wheeled undercarriage.
- rare and interesting version
- only limited quantity re-release