Chart Navigation & Plotting · Chart Basics
A 'large-scale' chart compared with a 'small-scale' chart:
- ACovers a smaller area with greater detail✓ Correct
- BCovers a larger area with less detail
- CAlways uses a different projection
- DHas no soundings
Explanation
A large-scale chart (e.g., 1:20,000) shows a small area in great detail — used for harbors and approaches. A small-scale chart (e.g., 1:1,000,000) covers a large area with less detail — used for passage planning. 'Large scale, large detail.'
Authority: Bowditch, Pub. No. 9 (chart scale)
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