Even as the domestic demand for the D.XXI was being questioned, the type had attracted the attention of a number of foreign governments [REF].
Throughout 1940 and 1941, the Finnish State Aircraft Factory set about reconditioning the aircraft that had been used in the Winter War for continued service; an additional 50 D.XXIs were ordered in 1941, which were powered by the Pratt and Whitney Twin Wasp Junior engine, acquired via Sweden [REF].