Small scale navigation charts, often called General Charts, Sailing Charts, or Planning Charts offer the lowest detail but cover the largest geographic area. These charts often have a scale from 1:500,000 up to 1:5,000,000 for general charts and 1:100,000 to 1:500,000 for sailing charts.

A small-scale chart of an ocean could be printed on a smaller sheet of paper, while a large-scale chart of the same ocean would need a much larger piece of paper. A great example of a small-scale chart is NOAA chart 530 which covers much of …

A chart covering a relatively large area is called a small-scale chart and one covering a relatively small area is called a large-scale chart. Since the terms are relative, there is no sharp division between the two.

Typical small scale portrayal of ENC data showing entrances to San Francisco Bay. NOAA ENCs are vector data sets that support all types of marine navigation.

2022年3月15日 · Scale charts shrink things down to show important features. Larger scale charts will always show more detail. If you’re navigating a narrow passage or new area, you want the largest scale chart you can find. Smaller scale charts tend to show much larger spaces. Open areas of the sea will have the largest scale charts of all.

2013年5月23日 · Small scale charts are broader in terms of details and provide a much extensive representation of an area depicting the features, landmarks, harbors, and coastlines along with other important details.

2019年3月16日 · Differentiating fundamentally, the scale or the ratio of area displayed to actual area is considerably bigger than a small scale chart. An area covered by a small scale chart can be split further into 10 , 20 or 30 large scale charts showing features such as full details and characteristics of principal lights and fog signals , light vessels ...

Chart types explained. Here we list all different types of nautical charts, from large to small scale (it's counter-intuitive), to pilot and harbor charts.

2011年10月28日 · Typical nautical chart scales range from 1:2,000 (sometimes referred to as “Berthing-scale” or a “Berthing chart”) to 1:10,000,000 (“Planning-scale”). Between these extremes, charts can be collected into groups like these: Harbor, Approach, Coastal, General, and …

2012年5月27日 · There are four basic scale categories: sailing charts (crossing an ocean); general charts (coastwise navigation outside off-lying dangers and usually in sight of land); coastal charts (navigation near shore and entering harbors); harbor charts (details of harbors).