Your vessel is port side to a pier with a...

Your vessel is port side to a pier with a...

Question 1 of 2707066636ee728f7522a1c5182cf

Your vessel is port side to a pier with a spring line led aft from the bow. How will the vessel respond in calm weather, with the engines ahead and hard left rudder?

Question 1 of 27070

Q

Your vessel is port side to a pier with a spring line led aft from the bow. How will the vessel respond in calm weather, with the engines ahead and hard left rudder?

🔍 Key Concepts

• Pivot point and mooring lines – how a spring line led aft from the bow controls the ship’s movement • Effect of engines ahead with rudder over when secured by a single spring line • Which end of the vessel is held close to the pier by the spring line and which end is freer to move

💭 Think About

• Picture the spring line: it runs from the bow, aft along the ship, to a bollard on the pier. If you put engines ahead, which way does that line try to walk the ship? • With the rudder hard left and engines ahead, which direction is the propeller wash pushing the stern, and how does the spring line resist that movement? • Ask yourself: which end is ‘tied in place’ by the spring line, and which end swings like a door around that point?

✅ Before You Answer

• Identify which end of the vessel is effectively the pivot point because of the spring line • Decide whether the bow can move away from the pier or is held in, given that the line is led aft from the bow • Confirm how engines ahead + hard left rudder would tend to move the stern relative to the pier if the ship were not moored at all