🔍 Key Concepts
• Day shapes in the Navigation Rules for different vessel types (Rule 26 – Fishing Vessels, Rule 27 – Vessels Not Under Command or Restricted in Ability to Maneuver, Rule 25 – Sailing Vessels)
• The specific shape used for sailing under power (motor sailing) versus shapes used for fishing or trawling operations
• Typical day shapes for mine clearance and dredging operations (balls and diamonds, not cones)
💭 Think About
• First, recall which vessel type uses a single cone, apex down as a day shape, and eliminate that choice from the answers.
• Then think about which operations under Rule 26 (fishing/trawling) use two cones with apexes together as a day signal, and match that to the closest answer choice provided.
• Consider what shapes are normally associated with mine clearing and dredge operations—are they cones, balls, or diamonds?
✅ Before You Answer
• Verify from the Navigation Rules that mine-clearing vessels display a pattern of balls, not cones.
• Confirm that a sailing vessel under power shows one cone, apex down, not two cones apexes together.
• Check Rule 26 to see which type of fishing operation (including trawling) uses two cones with apexes together as its day shape.