Krupp 80 cm Kanone Schwerer Gustav (Dora) Railway Gun ...
May 20, 2017· Krupp, recalling the recent report, was able to answer Hitler''s question in some detail. Krupp explained that a 33.5 in (80 cm) railway gun could be constructed and would be able to defeat the Maginot Line. After Hitler''s visit, Krupp directed his design staff to begin the layout of such a weapon.