What type of light configuration is required for motorboats less than 39.4 feet long?

For motorboats that are less than 39.4 feet long, the correct light configuration requires red and green sidelights along with an all-round white light. This specific lighting setup is designed to ensure visibility and safe navigation during both daylight and nighttime conditions.

The red and green sidelights indicate the presence and orientation of the vessel: the red light identifies the port (left) side, while the green light indicates the starboard (right) side. This color distinction is crucial for other vessels to determine how to safely navigate around the motorboat to avoid collisions.

The addition of the all-round white light enhances visibility from all directions, particularly when a vessel is at anchor or underway in the dark. This conforms to the standards set by navigation rules to promote safety on the water.

Other configurations mentioned do not meet the requirements for motorboats in this size category, as they either lack the necessary components or do not comply with proper color coding for navigation lights, which is essential for safe operation on the water.