Back to modules
10

Essential Navigation module 10 of 10

Electronic Navigation and Engine Checks

Basic GPS/chart plotter awareness, phone backup limits, and simple pre-start engine checks.

GPS basicschart plotter limitsphone backupengine checks

What to know for Electronic Navigation and Engine Checks

Use electronic navigation as an aid while still doing basic human checks on position and machinery.

Basic GPS/chart plotter awareness, phone backup limits, and simple pre-start engine checks. This module is mapped to the published course boundary for Essential Navigation and Seamanship Revision and written as an independent revision aid, not official training material.

Key Points

  • GPS position is useful but not a substitute for lookout
  • Zoom level can hide hazards
  • Phones can fail, overheat, or lose battery
  • Basic engine checks reduce avoidable breakdowns

Last reviewed: 6 July 2026 by Compass Revision curriculum review

Source notes

Unlock the full Essential Navigation course

Get every section, module quiz, flashcards, and the full curriculum map for this Compass course.