Your vessel is proceeding up a narrow...

Question 1 / 2707066636ee728f7522a1c518f7e

Question 1 of 2707066636ee728f7522a1c518f7e

Your vessel is proceeding up a narrow channel. What is the effect on squat if you meet another vessel on a reciprocal course?

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Question 1 of 27070

Your vessel is proceeding up a narrow channel. What is the effect on squat if you meet another vessel on a reciprocal course?

🔍 Key Concepts

• Squat: change in a vessel’s draft and trim due to speed in shallow or confined water • Effect of narrow channels on water flow around the hull • Hydrodynamic interaction when two ships pass close on reciprocal courses (bow‑to‑bow meeting)

💭 Think About

• When two ships meet in a narrow channel, what happens to the water pressure and flow between the hulls? Does water level between them rise or fall? • If pressure between the ships decreases, how does that affect the vertical force on each ship and therefore their squat? • Compare a single ship moving alone in a narrow channel versus two ships meeting: does the interaction increase, decrease, or neutralize the downward sinkage?

✅ Before You Answer

• Review how squat changes with increasing speed and decreasing under‑keel clearance • Consider how ship‑to‑ship interaction (suction and sheer forces) behaves when vessels are close and aligned bow‑to‑bow in a narrow channel • Verify whether interaction effects from the other vessel add to, reduce, or cancel the existing squat of your own vessel

Question 1 of 27070

Your vessel is proceeding up a narrow channel. What is the effect on squat if you meet another vessel on a reciprocal course?

the squat is additive

the squat is subtractive

squat will remain the same

squat will be cancelled out

Question 1 / 2707066636ee728f7522a1c518f7e

Question 1 of 2707066636ee728f7522a1c518f7e

Your vessel is proceeding up a narrow channel. What is the effect on squat if you meet another vessel on a reciprocal course?

Back

Question 1 of 27070

Your vessel is proceeding up a narrow channel. What is the effect on squat if you meet another vessel on a reciprocal course?