The document categorizes various types of navigation charts based on their scale and intended use, explaining that large scale charts provide detailed information for small areas, while small scale charts are used for larger areas and deep sea navigation. Coastal charts are used when navigating near the coast, depicting details like lights and beacons, while harbor charts are specifically for navigation within ports and small waterways. The scales for these charts range from 1:50,000 up to 1:600,000, depending on the chart type.

1. CLASSIFICATION OF
CHARTS AREAS
RANGES
Bryan M. Tabefranca

2. CHART
• Is such a representation intended primarily for
navigation. It generally shows the depths of water,
aids to navigation, dangers and the outline of
adjacent land and such features that are useful to
the navigator.

3. Large Scale Charts = Large Details
Small Area Shown
Small Scale Charts = Small Details
Large Area Shown
1 : 10,000
Is a larger scale than
1 : 200,000

4. • are small scale charts used for deep sea navigation
while proceeding on a long voyage.
• Scale Range
1 : 600,000 to smaller scale
SAILING CHARTS OR OCEAN
CHARTS

5. SAILING CHART

6. GENERAL CHARTS
• These charts are intended use in coastwise
navigation outside of outlying reefs and shoals
when the vessel is generally within the sight of land
or aids to navigation and his course can be directed
by plotting.
• Scale Range
1 : 150,000 to 1 : 600,000

7. GENERAL CHART

8. COASTAL CHARTS
• These are large-scale charts used in navigating in
close proximity to the coast. Many details of the
coast are depicted such as nature of the coastline,
position and characteristics of lights, radio
telegraph stations, towers, beacon and other
floating aids to navigation are also depicted.
• Scale Range
1 : 50,000 to 1 : 150,000

9. COASTAL CHART

10. HARBOR CHARTS OR PLAN
CHARTS
• are intended for navigation and anchorage in
harbors and small waterways.
• Scale Range
1 : 50,000 to larger scale

11. HARBOR CHARTS