The Renault FT 17 or Automitrailleuse à chenilles Renault FT modèle 1917 was a French light tank; it is among the most revolutionary and influential tank designs in history. The FT 17 was the first tank with an armament in a fully rotating turret, and its configuration with the turret on top, engine in the back and the driver in front became the conventional one, repeated in most tanks until today; at the time it was a revolutionary innovation, causing armour historian Steven Zaloga to describe the type as 'the world's first modern tank'.
This is the Six Ton Tank Model 1917 - but used in the 1936 spanish civil war by both republican and nationalist armies .