Emergency and Electronic Backup Navigation

• Explain navigation without electronics, log records, dead reckoning, astro fallback, and equipment failure planning.
• Apply emergency navigation to a realistic onboard situation.
• Recall the core check: keep a DR plot or written track alive.

A self-guided revision companion that explains essential concepts, then helps you practise and test them. It supports—but does not replace—recognised instruction, practical training, assessment or certification. Access is a one-time payment, not a subscription.