Depth sounding 1970-01-01
Diaphone 1970-01-01
Direction determination 1970-01-01
Distances Between Ports 1970-01-01
Diver navigation 1970-01-01
Draft (hull) 1970-01-01
Drift (navigation) 1970-01-01
Earth inductor compass 1970-01-01
Electro Gyrocator 1970-01-01
Electronic navigation 1970-01-01
Ex-meridian 1970-01-01
Fairway (navigation) 1970-01-01
Fisheries monitoring control and surveillance 1970-01-01
Fog signal station 1970-01-01
Foghorn 1970-01-01
GPS/INS 1970-01-01
Geographic Data Files 1970-01-01
Global Maritime Situational Awareness 1970-01-01
Gnomonic projection 1970-01-01
Great-circle navigation 1970-01-01