[Code of Federal Regulations] [Title 33, Volume 1] [Revised as of July 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 33CFR62.39] [Page 147] TITLE 33--NAVIGATION AND NAVIGABLE WATERS CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY PART 62--UNITED STATES AIDS TO NAVIGATION SYSTEM--Table of Contents Subpart B--The U.S. Aids to Navigation System Sec. 62.39 Large navigational buoys. Large Navigational Buoys (LNB's) may be considered floating lighthouses. They generally provide light, sound, and radiobeacon signals, and some are equipped with radar beacons (racons). LNB's are red in color, have a forty foot diameter hull, and a tower approximately forty feet in height.