EASA NAV(A)intermediate
Which statement describes a Mercator chart?
Answer
Scale increases with latitude; great circles are curved and rhumb lines straight
Explanation
Mercator projection is conformal and represents constant-bearing rhumb lines as straight lines. Its scale increases with latitude, and great-circle paths generally appear curved. **Key takeaway:** Mercator is convenient for constant-bearing routes but distorts scale at high latitude. **Glossary:** **Conformal**: Preserving local angles; **projection**: A mathematical representation of Earth's surface on a plane.
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