OCEAN ELECTRONIC NAVIGATIONAL AIDS 



Figure 1-5. — Loran hyperbolic pattern. 



navigator need only wait for a few moments to obtain usable data. For these 

 reasons Loran is an especially valuable asset to navigation during bad 

 weather. 



SUMMARY OF VALUABLE FEATURES OF THE LORAN SYSTEM 



The features which make Loran a valuable tool and a highly regarded sup- 

 plement to the art of navigation are inherent in the technology of the system 

 itself. It is a radio device which makes use of the speed of travel of radio 

 signals as its fundamental principle. This quality is known scientifically to 

 be the most stable and unchanging electrical characteristic of radio waves 

 and consequently the Loran system stems from a firm and proven scientific 

 foundation. 



The outstanding features of the Loran system may be summarized as 

 follows : 



(1) Loran fixes may be obtained readily at long distances from the trans- 



