Based on C. A. MacElrevey — Shiphandling for the Mariner (5th ed.). Each chapter becomes a top-down maneuvering bench: you command the ship step by step — set the angle, kick the engine, put the rudder over, drop the anchor, work the tug — and watch the motion unfold at the dock, exactly the way the book draws it. The best way to learn shiphandling is to see it. Tap the Brazil flag in each chapter to reveal a Portuguese translation.