The Mark 60 CAPTOR (Encapsulated Torpedo) is the United States' only deep-water anti-submarine naval mine.

[4][3][2] It uses a Mark 46 torpedo[2][3] contained in an aluminum shell that is anchored to the ocean floor.

[3] The original production contract of the CAPTOR mine was awarded to Goodyear Aerospace in 1972, and entered service in 1979.

[3] It was hoped to reduce minefield costs and used in the creation of a barrier of the "Greenland-Iceland-United Kingdom gap to interrupt Soviet submarines in the event that deterrence failed.

"[4] The mine uses Reliable Acoustic Path (RAP)[2][1] sound propagation to passively identify and track the difference between hostile submarine signatures, surface vessels and friendly submarines.