Mobile submarine simulator
The mobile submarine simulator (MOSS) is a sonar decoy used by
submarines of the United States Navy. It is a 21-inch torpedo,
without an explosive warhead, but
able to generate a strong sound signature recorded to be
extremely similar to that of the launching submarine.
The MOSS first entered service in 1976 and has been deployed on all
American ballistic missile submarines since the 1980s. It has been
progressively improved through its service life; an extended-range variant
is known as the LEMOSS -- the long-endurance mobile submarine simulator.
