🔍 Key Concepts

• Safe shiphandling in ice on the Great Lakes (general principles from ice navigation guidance) • Difference between what you usually avoid versus what you try to take advantage of in ice (e.g., leads vs. ridges, thinner vs. thicker ice) • Relationship between speed and hull/propeller damage in ice

💭 Think About

• Which options describe behavior that generally reduces stress on the hull and rudder when in ice? • In practice, do mariners prefer to follow weaker, more open ice features or stronger, more compressed features when choosing a track? • Think about each statement: would an experienced ice navigator teach this as a core principle or warn you not to do it?

✅ Before You Answer

• Identify which choice mentions using a type of ice feature that is typically stronger and more dangerous rather than weaker and easier to navigate. • Double-check which statements clearly match the idea of gentle, cautious progress in ice versus taking unnecessary structural risk. • Ask yourself: if you were protecting your hull, rudder, and propeller in heavy ice, which one of these suggestions would you be most suspicious of?