You are taking the bow line from the port...

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Question 1 of 2066636ee728f7522a1c51829f

You are taking the bow line from the port bow of a large vessel that is underway when the stern of your tug comes in contact with the vessel. The forward motion of both vessels causes your tug to be turned toward the other vessel and contact the stem thereby being "stemmed". Which action should you take?

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Question 1 of 20

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🔍 Key Concepts

• Effect of forward motion and hydrodynamics when a small tug is alongside a large moving hull • How prop wash and rudder angle affect a tug’s bow and stern when close to a ship’s stem • Danger of losing steerage or going astern when your stern is already being sucked toward the ship’s bow

💭 Think About

• Think about what happens to your tug’s heading and control if you suddenly go astern when your stern is already being pulled in toward the ship’s bow • Consider which engine order gives you the strongest, quickest control over your tug’s heading when very close to another vessel’s stem • Ask yourself how rudder position changes the direction your bow will swing when you have strong prop wash over the rudder

✅ Before You Answer

• Will going astern increase or decrease your ability to steer when your stern is already near the ship’s bow? • Do you need more water flow over the rudder or less to quickly swing your bow away from the ship? • Verify which rudder position (amidships vs hard over) will most rapidly move your bow away from danger when you apply power.

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