During the Crimean war and the first defense of Sevastopol for an obstacle of an input on internal spot-check to warships of England, France, Turkey in two lines between Konstantinovskoj and Aleksandrovskoj batteries, and then between Mihajlovskoj and the Nikolaev batteries have been flooded in current of all defense of 15 warships of the Black Sea fleet: the linear ships: Twelve Apostles , Sv