OCEAN ELECTRONIC NAVIGATIONAL AIDS 7 



mitting stations. The daytime range is approximately 750 nautical miles. 

 In addition to the range of individual pairs of stations, the integrated Loran 

 system is so arranged that coverage is available over most of the major 

 shipping lanes of the world. 



(2) The accuracy of Loran fixes is of high order. Results comparable to 

 those obtained by means of good celestial observations are consistently 

 effected. 



(3) Loran operation is nearly independent of the weather. It is not 

 affected by conditions of the sea or air and does not suffer from doubtful 

 effects encountered with older types of radio navigational devices such as 

 direction finders. 



(4) The time required to obtain a Loran fix is short. Experienced operators 

 seldom require more than 2 to 3 minutes to establish a fix. 



(5) Operation of Loran shipboard and aircraft equipment is relatively 

 simple and navigators may be trained in Loran technique in a very short time. 



Figure 1-6. — Vessel making port on Loran line of position 



