Hollow truncated cone filament

From International Dictionary of Marine Aids to Navigation
Revision as of 10:07, 25 February 2009 by Oferiks (talk | contribs) (1 revision)
Jump to navigation Jump to search

2-3-215

No English Term

A filament (usually of multi-vee formation) in the form of a hollow truncated cone, generated around the axis of the lamp.

Ch2 Fig30.jpg


Note: The filament may be fully closed in plan, or may embrace an arc of less than 360 degrees.

In the latter case, the French term is Grille Tronconique Incomplete or Filament Tronconique Incomplet and the English term is"Bunch filament" (2-3-220).




Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)