You are on a single-screw vessel with a...

Question 1 / 2707066636ee728f7522a1c518963

Question 1 of 2707066636ee728f7522a1c518963

You are on a single-screw vessel with a left-handed propeller making no way in the water. How will your vessel react when you apply right rudder?

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Question 1 of 27070

You are on a single-screw vessel with a left-handed propeller making no way in the water. How will your vessel react when you apply right rudder?

🔍 Key Concepts

• Propeller side force (transverse thrust) on a single-screw, left-handed propeller • Effect of rudder when there is no water flow past it (vessel making no way) • Difference between what moves first: bow vs. stern when only propeller is working

💭 Think About

• Think about whether the rudder can create turning force if the vessel is stopped in the water with no flow past the rudder • On a left-handed propeller, when you first go ahead from a stop, which way does the stern tend to "walk"? How about when you go astern? • Does the rudder or the propeller side force dominate when there is no headway or sternway?

✅ Before You Answer

• Verify what left-handed propeller means (direction of rotation in ahead gear and its side effect on the stern) • Confirm whether rudder angle alone can move a stopped vessel without flow over the rudder • Decide whether the initial movement should be described as a kick of the bow or a kick of the stern, and to which side

Question 1 of 27070

You are on a single-screw vessel with a left-handed propeller making no way in the water. How will your vessel react when you apply right rudder?

Stern will kick to port, then slowly swing to starboard

Bow will kick to starboard

Rudder alone has no effect on the vessel

Bow will kick to port

Question 1 / 2707066636ee728f7522a1c518963

Question 1 of 2707066636ee728f7522a1c518963

You are on a single-screw vessel with a left-handed propeller making no way in the water. How will your vessel react when you apply right rudder?

Back

Question 1 of 27070

You are on a single-screw vessel with a left-handed propeller making no way in the water. How will your vessel react when you apply right rudder?