Which navigation tools are standard on the RBS II and how is position established?

• A. GPS/chart plotter, compass, charts; position is fixed by GPS and confirmed by landmarks or dead reckoning as needed.
• B. Sextant and stars only.
• C. Radar alone with no GPS.
• D. Alphabetic tool known as a 'spyglass'.

Answer: (A)

On the RBS II, you establish and maintain your position with a GPS/chart plotter, a compass, and charts. The GPS/chart plotter provides your precise location on the chart and helps you plot a safe course. The compass gives your heading, which you translate onto the chart to keep your route accurate. Charts are essential for understanding hazards, depths, and navigation aids, and they’re used to plot and monitor your course.

Position is established primarily by GPS, giving a real-time fix. If GPS data is uncertain or unavailable, you verify or refine your position by identifying recognizable landmarks from shore or known features and by dead reckoning—calculating where you should be based on your last known position, speed, course, and time. This combination of electronic positioning with chart work and situational checks provides reliable navigation and redundancy. The other options rely on outdated or incomplete methods and wouldn’t provide the necessary accuracy or practicality for routine navigation on the RBS II.