What is NOT a basic shiphandling rule for...

🔍 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?

What is NOT a basic shiphandling rule for navigating in ice concentrations on the Great Lakes?

Transit ice along pressure ridges when possible.

Excessive speed means ice damage.

Work with the ice movement, not against.

Keep moving - even very slowly, but keep moving.

🔍 Key Concepts

💭 Think About

✅ Before You Answer