The Tupolev ANT-20 Maxim Gorky was a Soviet eight-engine aircraft the largest in the 1930s. Only the Dornier Do X flying boat of a few years earlier was heavier (at 56 metric tons maximum takeoff weight) than the ANT-20 in the inter-war years but the Do X needed twelve engines to get it off the water versus the eight powerplants of the ANT-20 landplane.
Made by Tupolev.
It is the successor of the Tupolev ANT-16 .