Sites related to ships with hull classification AGER. Most ships in this hull classification have been decommissioned. USS Pueblo has been maintained on nominal active duty as a protest that it is still in the custody of North Korea.

Sites related to past and present U.S. Navy oceanographic research ships (with hull classification AGOR).

Sites related to past and present U.S. Navy submarine research ships (with hull classification AGSS).

Sites related to past and present U.S. Navy surveying research ships (with hull classification AGS).

For ships with hull classification AGTR. This hull classification code is not used anymore, so all ships in this class are decommissioned.