CHARTING THE OCEANS FOR SAFE NAVIGATION 63 



Essential tools for safe aircraft navigation. 



Corps air facilities throughout the world is furnished for 

 publication in a variety of Department of Defense flight infor- 

 mation publications. 



Since 1920, the Navy has been furnishing to aviators and others 

 concerned with navigation, information on such subjects as land 

 and sea landing areas, air routes, airspace restrictions, air traffic 

 procedures, hazards to air navigation, and electronic aids to navi- 

 gation. One means of providing this service is through a world-wide 

 communications network linking Naval and Air Force air 

 facilities. This system, identified as the Notice to Airmen 

 (NOT AM) system, provides for immediate transmission of flight 

 advisory information. The Oceanographic Office monitors all 

 Navy input into this system. 



Approval of the aircraft instrument approach and departure 

 procedures established for Navy and Marine Corps air activities, 

 worldwide, is made by the Oceanographic Office. Some 1200 

 such procedures are processed annually. An associated service 



