An embodiment of torpedo, providing increased explosive energy, comprises: a casing encapsulating a rubber container, having frontal cumulative cavities with peripheral magnetic rings, said container containing an elongated type explosive charge, an axle, a bushing slidely mounted on the axle, spokes associated with the bushing and container's front, cumulative cups with press-detonators; a formatter, joined with the container's rear portion, slidely disposed on the axle, capable to displace the charge from the rear to the middle of container thereby converting it into a cumulative type charge; a magnetic cup slidely disposed on the axle; an engine unit including a cylindrical shell, fixed to the casing, the shell containing aluminum thin double-wall pipes furnished with ignition detonators. The pipes are innerly stuffed with compressed pyroxylin gunpowder; the internal space between the pipes' double-walls is filled with water, gasified during the torpedo's launch and outlet from the rear, increasing the torpedo's speed.