Which light pattern is used by a trawling vessel?

Which light pattern is used by a trawling vessel?

• A. Yellow-White
• B. Red-White
• C. White-Red
• D. Green-White

Answer: (D)

A vessel that is actively fishing with gear such as trawls uses a distinctive light combination to signal other mariners about its activity. For trawlers, the pattern shown is a green light paired with a white light. The white light provides a clear forward-visible signal of the vessel’s presence and movement, while the green light indicates the fishing operation. This pairing helps other ships recognize that the trawler is engaged in gear deployment and may maneuver in ways that differ from normal navigation, so they can take appropriate action to avoid a collision. The other color pairings don’t convey this specific signaling used for trawling in standard practice.

A vessel that is actively fishing with gear such as trawls uses a distinctive light combination to signal other mariners about its activity. For trawlers, the pattern shown is a green light paired with a white light. The white light provides a clear forward-visible signal of the vessel’s presence and movement, while the green light indicates the fishing operation. This pairing helps other ships recognize that the trawler is engaged in gear deployment and may maneuver in ways that differ from normal navigation, so they can take appropriate action to avoid a collision. The other color pairings don’t convey this specific signaling used for trawling in standard practice.