🔍 Key Concepts
• Difference between light displacement, heavy displacement, and what is included in each
• What items (fuel, water, stores, cargo) are counted as deadweight versus part of the light ship
• Setting up a simple subtraction to find cargo capacity from total loaded condition
💭 Think About
• First, think about what the heavy displacement represents for this vessel and what is already included in that number when the ship is fully loaded.
• Ask yourself: which weights given in the problem are not cargo, but still part of the ship’s loaded condition?
• Once you know total loaded weight and you subtract all the non‑cargo items (including the light ship), what is left over for cargo?
✅ Before You Answer
• Be clear on the definition: light displacement is the ship itself without fuel, water, stores, or cargo.
• Confirm that heavy displacement here means the displacement when the ship is fully loaded with fuel, water, stores, and cargo.
• Before picking an answer, calculate: cargo capacity = heavy displacement − light displacement − (fuel + water and stores) and check that your arithmetic matches one of the choices.