<Ul> <Li> Ships at anchor display one or two white anchor lights (depending on the vessel's length) that can be seen from all directions . If two lights are shown then the forward light is higher than the aft one . </Li> <Li> Boats classed as "small" are not compelled to carry navigation lights and may make use of a handheld torch . </Li> </Ul> <Li> Ships at anchor display one or two white anchor lights (depending on the vessel's length) that can be seen from all directions . If two lights are shown then the forward light is higher than the aft one . </Li> <Li> Boats classed as "small" are not compelled to carry navigation lights and may make use of a handheld torch . </Li> <P> Aircraft navigation lights are placed in a way similar to that of marine vessels, with a red navigation light located on the left wingtip leading edge and a green light on the right wingtip leading edge . A white navigation light is as far aft as possible on the tail or each wing tip . High - intensity strobe lights are located on the aircraft to aid in collision avoidance . </P>

Where are anti collision lights located on aircraft