The "Carta Nautica 1111" (often simply called La Legenda or INT 1) is not a map of a specific place; rather, it is the dictionary of the map. It is the key that allows a navigator to read any nautical chart produced by IHO member states (including the Istituto Idrografico della Marina in Italy).
Without understanding these symbols, a navigator cannot distinguish between a safe anchorage and a prohibited area, or a rocky bottom and a sandy one.
While "Carta 1111" refers to paper chart standards, modern navigation uses ECDIS (Electronic Chart Display and Information System). simboli carta nautica 1111 pdf
Legally acquiring the official PDF is crucial. Here is the step-by-step process:
| Symbol | Meaning |
|--------|---------|
| Fl(2) 5s 15m 10M | Group flashing (2 flashes every 5 sec), height 15m, range 10 nautical miles |
| Oc | Occulting |
| Iso | Isophase |
| Arc with dashed lines | Light sector (colored: R, G, W) | The "Carta Nautica 1111" (often simply called La
Even if you are sailing, the coastline is your reference.
| Symbol | Meaning |
|--------|---------|
| Tidal diamond (purple square with letter) | Refer to tidal stream table |
| Arrow with speed | Dominant current direction & rate |
| HW / LW | High/Low water heights at specific point | Rock awash (Scoglio affiorante): A solid star-like symbol
Le carte nautiche usano simboli standardizzati per rappresentare fondali, ostacoli, segnali e servizi: conoscere questi simboli è essenziale per la navigazione sicura. Qui trovi una guida compatta e pratica sui principali simboli della carta nautica 1111 (formato/scala usato in molte pubblicazioni), con suggerimenti di utilizzo e un link per scaricare un PDF pronto da stampare.
The reason you need the PDF legend. These symbols are small but deadly.
+ inside a circle. Depths vary, always check the sounding next to it.