82 NAUTICAL CHART MANUAL 



To simplify correction work along channels, buoy symbols should be placed at an angle 

 of about 65 degrees from the channel lines, and mth the symbol pointing toward the top of 

 the chart wherever possible. The lettering pertaining to channel buoys should be placed far 

 enough away from the channel lines to permit slight changes in the positions of the buoy 

 symbols without disturbing the lettering. 







6s. 



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The orientation' of the buoy symbols, other than those along dredged channels, should be 

 about 25° from the vertical. 



Unlighted buoys along dredged channels shall be charted in their true position on large- 

 scale charts. On small-scale charts, when the widths of channels are exaggerated, the buoys 

 are charted in their correct relation to the edge of the channel. 



Buoy symbols marking the limits of fish trap areas should be oriented so as to fall inside 

 the area and, in general, at an angle of 65° from the limiting lines. 



Mooring buoys, whether lighted or unlighted cans, nuns, or spars, should be shown by the 

 mooring buoy symbol. (L-22) 



The purpose for which a buoy is to be used determines the symbol for charting. Buoys 

 having a ring to which a boat is to be tied, shall be represented by the mooring buoy symbol. 

 A white can, nun or spar, lighted or unlighted buoy marking a position for dropping anchor 

 or marking anchorage area limits shall be represented by the standard open buoy symbol. 



Racing buoys shall not be charted. In areas where racing buoys are established, the 

 following note shall be charted : 



RACING BUOYS 

 Racing buoys within the limits 

 of this chart are not shown hereon. 

 For location and description see the 

 Coast Guard Local Notices to 

 Mariners and Light List, 



DAYBEACONS (Fig. 20) (L-52) 



Daybeacons on large-scale charts shall be shown in black on Compilations, and red on 

 Drawings, in their true position by the standard symbol. Black beacons shall be shown in 

 solid color and all other beacons shall be shown open. Red beacons shall be overprinted in 

 magenta. The abbreviation "Bn" should be shown only at beacons which do not have identi- 

 fying numbers or letters. The abbreviations on both land and water should be in vertical 

 lettering. The abbreviation for black shall be omitted, but the abbreviation for color shall be 

 shown and placed above the number, or above or after "Bn," thus: a„'^„ Ag''^ ^Bn r 

 The center of the symbol is the geographic position. 



