8 



OCEAN ELECTRONIC NAVIGATIONAL AIDS 



(6) Efficiency of long-range navigation is increased. The course sailed may 

 be more direct with a resultant saving in fuel and increase in pay load. 



(7) Landfalls may be made at points close to the destination of a vessel. 



(8) Loran fixes are independent of other navigational instruments such as 

 compass, chronometer, and other radio equipment. No transmission from 



Figure 1-7. — Ship's captain obtaining positional data from a compact, lightweight type 



Loran receiver-indicator. 



the vessel or aircraft is required and only a single item of equipment is used 

 which may be installed at any point convenient for the navigator. 



(9) Safety at sea is greatly increased thrcugh Loran, and in case of dis- 

 aster, rescue operations are direct. A minimum of time is lost in searching 

 for disabled vessels when the Loran position is included in the distress 

 message. The increase in safety at sea will probably be reflected in reduced 

 msurance premiums as the application of Loran becomes more widespread. 

 This factor alone might easily compensate for the cost of the Loran 

 equipment. 



