🔍 Key Concepts

• Effect of speed on cargo movement and stability in a towing situation • How sea direction (head seas, beam seas, following seas) affects vessel motion and cargo shift • Behavior of a jack-up unit in transit versus on its legs (dynamic vs fixed)

💭 Think About

• Think about what happens to loose or adrift cargo when the tow maintains high speed in a seaway. Does it move more or less? • Would changing course relative to the seas or changing speed have the most immediate impact on cargo movement on deck? • Which option would a prudent mariner choose first to quickly reduce dynamic forces acting on the jack-up and its cargo?

✅ Before You Answer

• Which choice most directly reduces the accelerations and dynamic loads acting on adrift cargo? • Which action can be taken immediately without creating new stability or handling problems for the tow or jack-up? • Eliminate any options that would increase motion or impact forces on the adrift cargo.