Lotnicze Warsztaty Doświadczalne

Lotnicze Warsztaty Doświadczalne (LWD) was the Polish aerospace manufacturer and construction bureau, located in Łódź, active between 1945 and 1950. The name meant Aircraft Experimental Workshops. It was the first Polish post-war aerospace construction bureau.

The World War II and German occupation destroyed the whole Polish aviation industry. As soon as eastern part of Poland was liberated, in October 1944 a group of designers gathered in Lublin in a Design Bureau of Ministry of Communication. It was directed by Aleksander Sułkowski, but the main designer became Tadeusz Sołtyk. In primitive conditions, the bureau started works upon a utility aircraft Szpak-1. In early 1945 the construction bureau moved to liberated Łódź and on April 1, 1945 there were created the Aircraft Experimental Workshops (LWD), subordinated to the Ministry of Communication (a trivia is, that the name in Polish equals to Doświadczalne Warsztaty Lotnicze - pre-war manufacturer of RWD planes).

The Szpak-1 was not built, but there was designed and built its development variant, the LWD Szpak-2 utility plane. It first flew on October 28, 1945, as the first Polish post-war plane. Szpak-2 and Szpak-3 remained in single units, but in 1947 there was designed the LWD Szpak-4, which was the first Polish post-war plane built in series - a short series of 10 was manufactured in PZL-Mielec.

The next design was LWD Żak, two-seater touring and trainer plane of 1947. A series of 10 Żak-3 was built in LWD in 1948, plus prototypes of Żak-1, Żak-2 and Żak-4.

Most successful design of LWD was a military and civilian trainer LWD Junak of 1948. Its improved variants Junak-2 and Junak-3 were produced from 1951 in the WSK-4 Okęcie in Warsaw (a total of 252), although its further development was carried out outside of LWD. A civilian aerobatics and trainer variant of Junak was LWD Zuch of 1948; it was a successful design, but only 7 were built in LWD because of lack of proper engines.

...
Wikipedia