Final answer:
The Mk 46 Mods torpedo can be assembled into several REXTORP configurations, depending on mod variant and training goals, to simulate performance in a realistic setting without using explosive warheads.
Step-by-step explanation:
The Mk 46 Mods torpedo can be configured into several different recoverable exercise torpedo (REXTORP) configurations. The precise number of configurations can vary depending on the specific mod variant and the desired training objectives.
For example, a REXTORP configuration may include the fitting of inertial measurement units, data recording devices, and other non-warhead equipment that allows the torpedo to be used in exercises and then recovered. These configurations are designed to simulate the torpedo's performance without the use of explosive warheads, thus providing a safe and cost-effective means for training and evaluation of systems and operators in a realistic operational environment.