🔍 Key Concepts

• Local harbor regulations and speed zones that can differ from general state or federal limits • The difference between harbor entrance channels and open water speed expectations • Why authorities often choose lower speed limits in narrow, traffic‑dense channels

💭 Think About

• Which of these speeds seems most consistent with safe maneuvering and stopping distance in a narrow, potentially congested channel? • How would wake, visibility, and reaction time be affected at each of the listed speeds? • If you were the harbor authority, which speed range would you likely select to balance traffic flow and safety in a main entrance channel?

✅ Before You Answer

• Compare each option to typical no‑wake / slow‑speed limits used in many harbors. • Ask whether the highest speeds listed are realistic for an area where vessels may be entering, leaving, crossing, or anchoring nearby. • Remember that in exam questions about specific harbors, the tested value is usually a distinct posted limit, not a general rule of thumb—so think in terms of a clearly posted harbor speed.