Eliminatory block · max. 2 failures

Nautical charts PER: master the chart L-105 step by step

The part that gets most stuck, explained with guided exercises, support videos, PDFs and specific tests. Situations, headings, currents and tides, without stress.

Official chart L-105 15 support videos Specific Tests
Nautical chart L-105 (practice area) with plotted bearings and compass rose
The chart challenge

Turn your weak point into a guarantee of passing

The chart exercise is eliminatory: you can only fail 2. We prepare you thoroughly.

Situation

Latitude and longitude, bearings and alignments to position yourself on the chart.

Courses

From needle to true: total correction, declination and deviation.

Currents and leeway

Calculate the effective course with current and wind from the side.

Tides

Tide height and soundings at a given moment using the twelfths rule.

Guided exercises

Solve them step by step on the chart

1
Determine the position of the boat

For delays to two beacons and verification with the alignment.

2
Plot a course between two points

Measure true heading and convert it to magnetic heading.

3
Effective course with current

Compose the surface course with the intensity of the current.

Complete the first exercise
Exercise 1 · SituationStep 2 of 4
Chart with plotted bearings towards the lighthouse

Plot the true bearing to the North Point lighthouse (Dv = 045°) from your estimated position and mark the intersection.

15 support videos

Learn by watching, not just reading

Nautical chart · 12:30

Situation due to delays

RIPA · 09:15

Lights and marks of vessels

Tides · 11:40

Rule of twelfths

Frequently asked questions

About the nautical chart of the PER

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