The lashings used on Ro-Ro vessels should be...

Question 1 / 2707066636ee728f7522a1c517f06

Question 1 of 2707066636ee728f7522a1c517f06

The lashings used on Ro-Ro vessels should be capable of withstanding the forces of __________.

Question 1 of 27070

The lashings used on Ro-Ro vessels should be capable of withstanding the forces of __________.

🔍 Key Concepts

• Ro-Ro vessels (Roll-on/Roll-off) carry wheeled cargo that must be secured against ship motions • Ship motions include rolling, pitching, and heaving among others (surge, sway, yaw) • Cargo securing manuals and lashing requirements are based on worst-case combined sea conditions

💭 Think About

• Think about how a vehicle or trailer would move on a car deck in heavy seas—would it only move in one direction, or in several? • If lashings were designed for just a single type of ship motion, what could happen when the ship experiences a different motion? • On a Ro-Ro deck, is the main concern just side-to-side movement, or the overall effect of the ship’s motions on cargo?

✅ Before You Answer

• Verify which ship motions are most critical for vehicles on an open deck that can roll, pitch, and heave in a seaway • Consider whether regulations and good seamanship plan for single-motion conditions or combined motions acting together • Ask yourself: would safe practice ever ignore any major axis of vessel motion when designing lashings for Ro-Ro cargo?

Question 1 of 27070

The lashings used on Ro-Ro vessels should be capable of withstanding the forces of __________.

rolling

pitching

heaving

All of the above