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During the late twenties the three-engined Junkers G24s were redesigned as single engined aircraft by Luft Hansa under the designator F24. These F24s were equipped with BMW VI or BMW VII engines. One of these F24s (c/n 843) was reengined by Junkers in August 1928 with a Junkers Fo 4 oil engine and became designated as W41. It was used for experimental flights between Dessau and Cologne until it crashed in 1931.