26 



NAUTICAL CHART MANUAL 



FLAGSTAFF FS. (J-19) 



D 



Because of its non-permanence, a flagpole rising from a building 

 is not desirable as a landmark. Although it is desirable in lo- 

 cating a building to observe upon the most definite part (such 

 as the flagstaff), it is not necessarily the most important part 

 for charting piuposes. 



FLAG TOWER F. TR. (J-Jc) 



Any scaffold-like tower on which flags are hoisted, such as a 

 Coast Guard skeleton steel flagpole. Do not use signal tower. 



LOOKOUT TOWER LOOK. TR. (J-4) 



Any tower surmounted by a small house in which a watch is 

 habitually kept, such as a Coast Guard Lookout Tower or a 

 Fire Lookout Tower. The term must not be substituted for 

 OBSERVATION TOWER, or part of a building in which no 

 watch is kept. 



TOWER TR. (1-41) 



DD IZD DO 



QDJDLnp 



That part of a structure higher than the rest, but having verti- 

 cal sides for the greater part of its height. Any structure, 

 whether or not its sides are vertical, with base on tne ground 

 and high in proportion to its base. 



RADIO TOWER R. TR. (M-9) 



A tall pole or structm-e for elevating antennas. For more than 

 one tower use RADIO TOWERS. 



Chart FM stations thus: 

 Do not chart call letters, 

 if relatively low. 



Chart AM stations thus: 



O RADIO TOWER 415 FT 



Omit height above Mean High Water 



R TR 

 O (KAGT) 

 1340 KC 



If it is a commercial broadcasting station the call letter and 

 frequency should be added. As AM radio towers are usually 

 lower than FM or TV, the elevation may usually be omitted. 



TELEVISION TOWER TV TR. (M-Mb) Otv tower 415 ft 



A tall, slender structure for elevating antennas. Do not chart 

 call letters. Height above Mean High Water-shoidd be charted 

 if exceptionally high. 



Obstruction lights on radio or television towers are omitted 

 unless especially requested and their characteristics are known. 



