Renault FT
The remaining Renault FT vehicles, though having shown themselves to be very effective in trench warfare, were not well adapted in their present state of technological development to peacetime conditions. The main problem was their low top speed, which necessitated special tank transporters whenever the vehicles had to be moved outside their base area and made them fundamentally unsuited to patrolling duty in the colonies. It was therefore decided to modify a number of existing vehicles, by fitting them with a more effective suspension system. The first modifications were of the Renault FT Kégresse-type, which featured the suspension of the Kégresse half-track, fitted with a special rubber steel-reinforced track. In 1925 42 vehicles were rebuilt this way and deployed in 1926 during the Berber insurrection in Morocco. The modification allowed for a top speed of 17 km/h but field experience showed that the track was liable to suddenly snapping at top speed with often catastrophic consequences and the modification project was therefore discontinued. Nine Renault FT Kégresse vehicles were later sold to Yugoslavia and five to Poland.