Lotnicze Warsztaty Doświadczalne (LWD) was the Polish aerospace manufacturer and construction bureau, located in Łódź, active between 1945 and 1950.
World War II and German occupation destroyed the whole Polish aviation industry.
On April 1, 1945, the bureau established the Aircraft Experimental Workshops (LWD), subordinated to the Ministry of Communication.
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.
Chief designer Tadeusz Sołtyk organized a new construction bureau in the Aviation Institute in Warsaw.