Are port side lights flashing?
Just so, what are the blinking lights on airplanes?
Strobe lights are bright, flashing lights on the wingtips. They serve to augment the airplane's visibility at night. They are the brightest airplane lights and are visible from miles away. They are turned off when operating in proximity to other aircraft, or in clouds, where the strobes can cause temporary blindness.
Also asked, what does a flashing white light on a boat mean?
The red light indicates a vessel's port (left) side; the green indicates a vessel's starboard (right) side. Sternlight: This white light is seen only from behind or nearly behind the vessel. Masthead Light: This white light shines forward and to both sides and is required on all power-driven vessels.
Red buoys must be kept on the right side of a craft when proceeding in the upstream direction. A simple rule is red to the right when returning, or the three “R's”: red, right, return. In many places, the direction of the current is determined by consensus or by the tide.