Although Czechoslovakia was a land locked nation, a floatplane variant was necessary for a Czechoslovak anti-aircraft artillery training depot in the Bay of Kotor (now in Montenegro) and four were built as the Š-328v.
Sergey Letov | Yegor Letov | Letov Š-4 | Letov Š-1 | Letov L-101 |
The first indigenous aircraft, the Letov Š-1, was designed and built in 1920, and some 50 aircraft types were built by 1939.
The Letov Š-1 was a Czechoslovak single-engined, two-seat biplane surveillance aircraft, it was first military aircraft built in Czechoslovakia.
It took part in the International Meeting at Zurich in 1922 with modest success but the Military Aircraft Works decided to concentrate its efforts on the biplane Letov Š-4 and the development of the Š-3 ended.
The sole Š.331 and 22 out of 24 produced Š.231s were sold to representatives of the Spanish Republican government.
On 26 June 1934, one of these (registered OK-ADB) crashed during final approach to Karlovy Vary, killing all three on board, most notably the famous Austrian actor Max Pallenberg.