When conducting life raft search, the 10nm range scale on MMR should be used how?

• A. Only briefly to investigate a target
• B. Throughout the search
• C. Only at the start
• D. Never

Answer: (A)

Use the 10 nm range scale as a quick initial screening tool to scan a broad area and spot potential targets. Its wide view helps you cover more ground fast, which is important at the start of a life raft search. However, because the scale is coarse, it isn’t reliable for detailed detection or tracking of small objects like life rafts. Therefore you shouldn’t stay on this scale for the entire search. Switch to shorter ranges to get finer detail and confirm any target you suspect, then continue your search with the appropriate scales as you close in. This approach balances broad coverage with the ability to verify and precisely locate a target.