S-31, Letov S-31 a S-131

The Military aircraft factory Letov successfully launched in the mid-20s a series of fighters Letov S-20 for the Czecosovak Air Force, which were also exported abroad. All the knowledge and experience of flying the prototype S-20J with the Jupiter engine was used by the factory when designing a new fighter aircraft called the S-31. The Flight Factory offered its new fighter aircraft to the military administration on April 19, 1928. It responded and the first four S-31s were ordered on September 3, 1928 but the military ultimately favoured the Avia fighte

21 Ba-33 and Letov S-31 were produced in all versions. The book describes in detail the development, production and service of these fighters in the 1930s and the history of each machine produced.

A4, hard binding, 112 pages, color sideboards, 230 photos including machine details.
Please note, this is a Czech text only publication!