The arm in front would secure itself on the opposite bank of a trench to be crossed, preventing the tank from falling in. The tank would then drive over the trench, folding the forward arm, while the back arm would lodge itself on the bank of departure and unfold, pushing the vehicle safely across. In this way a trench two metres wide could be crossed. The system was tested on 3 April 1935 and 21 March, 30 April and 4 May 1936 and finally in March 1938. It proved to be quite effective but in 1938 the Commission de Vincennes rejected the project as the small gain in trench-crossing capacity did not make up for the higher weight. Smoke-laying tank In 1938 a smoke-laying system was tested, using the AMR 33. An AM5 apparatus was fitted by the Chaubeyre factory. It was not taken into production, despite a favourable report by the Section Technique de la Cavalerie. See also Tanks in France Notes References External links WWII vehicles - Renault Modèle 1933 VM, AMR 1933 Chars-francais.net old Chars-francais.net Light tanks of France Cavalry tanks Light tanks of the interwar period Military vehicles introduced in the 1930s