Letov Š-18

The Letov Š‑18, produced by the Czech firm Letov Kbely in the early 1930s, was a versatile two‑seat single‑engine trainer that played a crucial role in Central European aviation development. Designed by Alois Šmolik, the Š‑18 first flew in 1932 and quickly entered service with the Czechoslovak Air Force, where it replaced obsolete biplane trainers and introduced pilots to modern monoplane handling. Its wooden frame, fabric covering and low‑wing layout combined simplicity with respectable performance; the aircraft was powered by a 120‑horsepower Walter Minor radial engine, delivering a top speed of about 190 km/h and a range of 600 km. The tandem cockpit offered excellent visibility and dual controls, making it ideal for elementary and advanced flight instruction, aerobatics, and liaison duties. Over 500 units were built, some being exported to neighboring countries such as Poland and Yugoslavia. The Š‑18’s rugged construction and forgiving flight characteristics earned it a reputation for reliability, influencing later trainer designs in the region. Even after World War II, surviving examples continued to serve in civilian flying clubs, cementing the Letov Š‑18’s legacy as a cornerstone of interwar pilot training.

Letov Kbely

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Design & Classification