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240 - ATPL - How does scale change on a normal Mercator chart?

Question 240 - General Navigation - ATPL - Airline Transport Pilot license

Expands directly with the secant of the latitude.
Correct on the standard parallels, expands outside them, contracts within them.
Expands as the secant of the E/W great circle distance.
Expands as the secant^2 (1/2 co-latitude).

Training tests and timed exam simulations ATPL - Airline Transport Pilot license