BOTH INTERNATIONAL & INLAND You are heading due east (090°) and observe a vessel's red sidelight on your port beam. The vessel may be heading in which direction?

Question

BOTH INTERNATIONAL & INLAND You are heading due east (090&deg;) and observe a vessel's red sidelight on your port beam. The vessel may be heading in which direction?

Accepted Answer

Option D: southwest (225&deg;). A red sidelight covers the port sector of 112.5 degrees. If you are heading 090° and see the red light on your port beam (000°), the vessel is positioned to your north. For you to see its port side, the vessel must be heading in a southwesterly direction (225°).

BOTH INTERNATIONAL & INLAND You are heading due east (090&deg;) and observe a vessel's red sidelight on your port beam. The vessel may be heading in which direction?

BOTH INTERNATIONAL & INLAND You are heading due east (090°) and observe a vessel's red sidelight on your port beam. The vessel may be heading in which direction?