AIS Intelligence
Live Map
Ports
Docs
Get API Key
← Glossary
Freeboard
The distance from the waterline to the main deck - related to a vessel's
draught
and load.
More terms
AIS (Automatic Identification System)
MMSI
IMO Number
SOG (Speed Over Ground)
COG (Course Over Ground)
Heading
Class A transponder
Class B transponder
Dark ship
AIS gap
Bounding box (bbox)
Draught