You are going ahead on twin engines with...

Question 1 / 2707066636ef128f7522a1c522ce9

Question 1 of 2707066636ef128f7522a1c522ce9

You are going ahead on twin engines with rudder amidships. Your starboard engine stalls. To continue on course, which action should you take?

Back

Question 1 of 27070

You are going ahead on twin engines with rudder amidships. Your starboard engine stalls. To continue on course, which action should you take?

🔍 Key Concepts

• Effect of a stalled engine on a twin-screw vessel’s heading • How thrust from port and starboard propellers affects turning tendency when rudder is amidships • Using rudder to counteract asymmetric thrust and maintain a straight course

💭 Think About

• If only the port (portside) engine is driving ahead and the starboard engine has stalled, which way will the vessel naturally tend to swing with the rudder amidships? • To keep the ship on the original straight course, should your rudder input oppose or assist that natural swing? • How does applying left rudder versus right rudder change the water flow over the rudder when only one engine is powering?

✅ Before You Answer

• First decide which way the bow will tend to turn with only the port engine ahead and rudder amidships • Confirm that the rudder you choose will counteract the yaw caused by asymmetric thrust, not increase it • Eliminate any option that does nothing to correct the turning moment created by losing thrust on one side

Question 1 of 27070

You are going ahead on twin engines with rudder amidships. Your starboard engine stalls. To continue on course, which action should you take?

Apply left rudder

Apply right rudder

Increase engine speed

Keep your rudder amidships

Question 1 / 2707066636ef128f7522a1c522ce9

Question 1 of 2707066636ef128f7522a1c522ce9

You are going ahead on twin engines with rudder amidships. Your starboard engine stalls. To continue on course, which action should you take?

Back

Question 1 of 27070

You are going ahead on twin engines with rudder amidships. Your starboard engine stalls. To continue on course, which action should you take?