🔍 Key Concepts
• Lightweight condition definition for a vessel or MODU (no variable loads such as fuel, water, consumables, cargo, etc.)
• Where to find the lightweight draft for DEEP DRILLER in the Trim & Stability Booklet or Hydrostatic Data tables/curves
• Difference between displacement/lightship and operating/loading conditions (variable deadweight)
💭 Think About
• Are you looking at a condition that includes fuel, ballast, or consumables, or is it strictly the lightship (lightweight) condition with only fixed structure, machinery, and equipment?
• On the stability or hydrostatic data page for DEEP DRILLER, which line in the table or which point on the curve is explicitly labeled as the lightweight (or lightship) condition?
• Do the drafts for loaded conditions around the same displacement help you confirm whether the number you are considering is reasonably low enough to be the true lightweight draft?
✅ Before You Answer
• Confirm you are reading the correct condition name (it must say lightweight/lightship, not departure, arrival, damaged, or ballasted).
• Verify that the draft units are in feet (not meters) before comparing with the choices.
• Double‑check that you are reading the mean draft (or the draft specified in the question) for that condition, not the forward or aft draft unless the table clearly equates them in lightweight.