The fire-control system of the "Le Hardi" class as designed was identical to that of the larger s with a director equipped with a OPL Modèle PC.1936 stereoscopic rangefinder built around the base of the foremast above the bridge. The director sent the range to the where it was fed into a Modèle 1929 electro-mechanical computer which calculated the firing solution and transmitted it to the turrets. The intended to equip the turrets so they could be controlled by the director, but abandoned the effort in 1942 after equipment trials were unsuccessful and it concluded that the ships lacked the necessary electrical capacity.