Explain the Small Scale Charts. Classify Chart Scales types.

Question

Explain the Small Scale Charts. Classify Chart Scales types.

Or

Explain the term ‘Radar

Monjur Alahi

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2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Chart Scales.

Charts are generally published in three different scales, they are:-

(a) Small Scale Charts. These are charts covering a very vast area and the information such as sounding, lights etc. are not given in detail. These charts are generally used for passage planning and never should be used for navigation.

(b) Medium Scale Charts. These charts are used for passage. The information for navigation including dangers is clearly shown on these charts. These charts cover a general area of about 50 – 70NM.

(c) Large Scale Charts. These charts are generally of harbours and their approaches. These charts contain all information’s required for precise navigation. These charts cover an area of 5 – 7NM.

OR

Radar. Radio aided Direction and ranging i.e. with the help of radio waves, the direction and range of objects are obtained. This Instrument is Used for Navigation.