Letov S-428
Powered by an Avia VR-36 V-12 liquid-cooled inline piston engine of 740 hp, the Letov S-428 was a close support version of the Letov S-328. Only one prototype was built.
Letov S-428
Letov S-328
Letov S-328
Initially developed for a Finnish requirement for a two seat biplane reconnaissance, the Letov S-28 first flew in 1929. Although not taken up by the Finish Air Force, Czechoslovakia bought 12 production Letov S-128s. These were followed by 4 S-228s for Estonia which were delivered in 1932. Production then shifted to the main S-328 version. A total of 470 of all versions were built.
Following the Sudetenland Crisis and the splitting of Czechoslovakia, the new state of Slovakia inherited a large number of S-328s while Germany took control of the rest. Some of these and new built machines were sold to Bulgaria.
More details of each countries use of the Letov S-328 and photos can be found in the links below.
Photographs of scale models of the Letov S-328 can be found here.
Variants
- Letov S-28
- Letov S-128
- Letov S-228
- Letov S-328
- Bulgaria
- Czechoslovakia
- Estonia – (Letov S-228)
- Germany
- Slovakia
- Letov S-428
- Letov S-528
Letov S-528
Letov S-528
Planned as a replacement for the successful Letov S-328, the S-528 was a reconnaissance and light bomber aircraft. The structure of the S-328 was strengthened and the powerplant was upgraded to a 800 hp (597 kW) Gnome-Rhône Mistral Major. Due to the German annexation of Czechoslovakia, only six were built.
