Floating, Moored and Unlit Navigational Aids

When we consider all those objects afloat in the seas that might be included in the term, navigational aid, there are many possibilities. Of course, there are many floating artifacts that are not navigational aids. We believe, the great majority of these can be described as buoys or marks, where the two are distinguished as follows. A mark is defined as a floating artifact on which there is some kind of pole with an indicator of some kind (cross, arrow, triangle etc), whilst a buoy is a floating can (round, square or cylindrical) without such an indication. As it is not intended to include these in the lighthouse database, it is not proposed to develop this definition any further.

© 2003 Ken Trethewey