AIDS TO NAVIGATION 81 



BUOYS (Figs. 1, 21) (L) 



In general, the positions of floating aids should be taken from the latest Aid Proof of the 

 largest scale chart available. However, survey positions should be given careful consideration. 

 Any floating aid taken from sources other than the Aid Proof should be left in pencil for checldng 

 by the Aids Section. The Aids Section shall ink all such aids accepted and call for deletion 

 of the corresponding presently charted aid. 



The position of a navigational buoy or mooring buoy is indicated by the dot or small circle 

 at the base of the symbol. 



In congested areas and on smaller scale charts, omissions of characteristics at buoys shall 

 be made in the following order: 



Lighted Buoys Unlighted Buoys Daybeacons 



R"22" R R 



FlR4secBELL N"2A" Bn"12" 



9nd R"22" lSr"2A" -^ 



"^^ FIR BELL ^ ''^ "12" 



Fl TJ 



3rd N "12" 



BELL"22" ^ ^"^ 



^fv. Fl R 

 ^'^ BELL 



5th BELL 



All buoj's, except mooring buoys, black buoys (and red buoys which are colored red instead 

 of magenta on Small-craft and folded Intracoastal Waterway Charts), should carry the abbrevi- 

 ation indicating their color. 



Periods (cj^cles) of the lights on buoys must be indicated on the charts, but the visibility 

 need not be shown. 



Lighted buoys are indicated on the printed chart by a magenta disc, 2.5 mm. in diameter, 

 and centered on the dot at the base of the buoy symbol. (See L-2 .) 



For the present, buoys carrjdng radar reflectors are indicated on the charts, thus: Ra Ref 

 The symbol for radar reflector is: .>^ (See M-13.) 



Buoys, with their numbers and characteristics, should be sho\vn on the Compilations in 

 black, and on Drawings in red, clear of rock sjonbols and the least depth on shoals. 



