The 57mm/60 modèle 1951 gun was a dual purpose artillery piece in use in the French Navy. They notably armed light escorts as main guns, and T47 fleet escorts. The gun was composed of twin Bofors 57mm guns installed on a custom naval mounting that maintained the system in mechanical equilibrium, even when firing. The gun were water-cooled and fed by large 80-cartridge magazines that allowed several long bursts to be fired without reloading.