Furuno 520 Manuales De Servicio

An autopilot is an automatic device for steering a vessel and maintaining its 
heading in an intended direction. Boat and ship operators can really appreciate 
the advantages of the autopilot – It steers the boat for you so that you are free to 
carry out navigational checks, trim adjustments, etc. or to simply relax and enjoy 
the ride. 
 
The NAVpilot-511/520 autopilot utilizes a proportional rate system to steer the 
boat. This system is similar to the highly accurate and reliable systems used on 
aircraft, missiles and space vehicles. The proportional rate autopilot provides the 
necessary course correction to the steering system relative to the speed and 
amount that the boat moves off course. 
 
Dead band is the area (in degrees) that an autopilot is allowed to drift before 
correcting the vessel’s course. Since your NAVpilot-511/520’s advanced 
processor does not utilize a dead-band, it will not drift or wander, and will steer 
the boat reliably and accurately, taking action if even a minute course error 
occurs. 
 
Because wandering is eliminated, the proportional rate autopilot uses less power 
and lowers wear and tear on the steering system. Course correction is smooth, 
and consistent, and the boat will not jerk back and forth at any speed.