IT-ASL-EN-L2.1

The Mercator chart and the 1:100,000 scale

IT-ASL-EN-M2 · Chart and compass · IT-ASL-EN-M2-A Projection, scale, coordinates and distance; declination, deviation and converting headings and bearings.

On a Mercator chart **you measure miles on the latitude scale, at the same latitude**. Measure on the longitude scale and you are a quarter out.

Independent study. xplor is not affiliated with the Italian Ministry of Infrastructure and Transport (MIT), the Guardia Costiera / Capitanerie di Porto or any marine protected area, is not an approved nautical school (scuola nautica) or training centre, and awards no licence, title, certificate or endorsement. The chartwork paper is sat in Italian before a board appointed by the Capitaneria di porto, on clean IIM charts 5/D and 42/D that you bring, and the practical needs hours attested by a nautical school; this course counts towards no school hours and no part of the exam. AI-drafted content pending subject-matter-expert review.