🔍 Key Concepts

• Fixing a position by bearings on the chart • Difference between floating aids to navigation (like buoys) and fixed objects • Why stability and reliability of the reference point matters for plotting

💭 Think About

• Think about which objects are most likely to be exactly where the chart shows them over time. • Consider which objects are more likely to move due to wind, current, or maintenance. • Ask yourself: when you take bearings to plot a fix, what type of objects give you the most trustworthy, repeatable position?

✅ Before You Answer

• Verify which of the listed objects are fixed to the Earth and shown precisely on the chart. • Consider whether buoys can shift or be moved and how that affects plotting accuracy. • Check if the best practice for plotting is to use charted, permanent, identifiable features.