IALA systemInternational coding system of light signals, buoys and top marks
ICAO.International Civil Aviation Organization, international phonetic alphabet used in maritime and air navigation in order to compose letters and numbers in all languages.
InboardEverything inside the hull; it is often used to indicate the engine
Inboard engineEngine installed inside the boat
Inboard-outboardUsually referring to specific engines, it indicates what is partially in and out of the hull
Inboard-outboard engineEngine whose mechanical parts are both inside and outside the boat
IncatastataMainsail blocked on the mast. Anchor got caught on the bottom.
InclinometerInstrument used to measure the angle of heeling.
India.Term which represents ‚I‚ in the international phonetic alphabet.
InterfaceTwo or more electronic devices which exchange data through a NMEA 2000 or 183 connection.
International nameGroup of 4 letters which identify a craft.
International spellingRadiotelegraphic phonetic alphabet, often called NATO phonetic alphabet, used to articulate words
InverinarsiA rope which is spiral-twisted because it hasn't been rolled up properly.
Isolated danger signalIt indicates a limited danger surrounded by navigable waters.