Of the FCM design no details are known but it seemed to have had the general outline of the FCM 36, though with its dimensions about 20% larger and equipped with a FCM F4 fortification turret.
FCM公司提出的設計細節不明，但似乎擁有與FCM 36相近的輪廓，雖然依照尺寸來看可能比FCM 36大上20%左右，另外還安裝了一個屬於FCM F4的強化炮塔。