Description: Submarine Tenders furnish maintenance and logistic support for nuclear attack submarines.
Features: Submarine tenders are the largest of the active auxiliaries. Their crews are made up mostly technicians and repair personnel.
Background: The L.Y. Spear class is designed and fitted to accommodate attack submarines and can service up to four submarines moored alongside simultaneously. The Simon Lake class was configured especially to service ballistic missile submarines, the last of this class was decommissioned June 25, 1999.