In Sea Power, a torpedo can use both passive and active sonar seekers, detecting targets using our acoustic model. Torpedo acoustic detection is modeled just as other types of sonar in the game are, considering how much noise a target makes, how that noise is transmitted to the torpedo, and the torpedo’s own ability to detect said noise. Noise produced or reflected off of a target is dependent on the aspect and distance to the target, as well as the target’s type and class. Transmission then depends on the local speed sound profile (SSP), alongside layer and surface duct effects, controlling how much of the generated noise can get to the torpedo’s position. Finally, each torpedo has its own detection threshold. Wake homing torpedo guidance, as originally developed by the Soviets in the 1960’s, is to come soon.