In February 1915, after many months of static warfare, M. Boirault built this queer but ingenious machine to crush barbed wire entanglements and to cross 6 footwide trenches. Built with 6 metal frames sliding on a pyramidal structure. In trials his machine showed its limitations as it can only be driven straight ahead with no ability to turn. Re-fitted with lifting jacks to allow it to turn, the machine was still difficult to control and impossible to fit with weapons or armour.
Technical data :
Height: 4 m
Base length (on ground): 8 m
Weight : 30 tonnes
Power : 80 HP
Max. speed : 3 kph
