Junkers Ju 87 late 1934. It was to have been completed in April 1935, but, due to the inadequate strength of the airframe, construction took until October 1935. The mostly complete Ju 87 V1 W.Nr. 4921 (less non-essential parts) took off for its maiden flight on 17 September 1935. The aircraft was later given the registration D-UBYR. The flight report, by "Hauptmann" Willy Neuenhofen, stated the only problem was with the small radiator, which caused the engine to overheat. The Ju 87 V1, powered by a Rolls-Royce Kestrel V12 cylinder liquid-cooled engine, and with a twin tail, crashed on 24 January 1936 at
Junkers Ju 290 were constructed for "special purposes" by Junkers. Their works numbers are unknown. What those "special purposes" were, or if they ever came to be, is unknown. A number of Ju 290s survived the war, the Allies evaluating at least three examples, none of which was known to have survived intact into the 21st century. Junkers Ju 290 The Junkers Ju 290 was a German large, four-engine long-range transport and maritime patrol aircraft used by the Luftwaffe late in World War II that had been developed from an earlier airliner. The Junkers 290 was developed directly from the Ju 90 airliner,