I have Navionics on the iPad and it is reasonably good performance and amazingly good value. (Most of Europe
for $60) I have not tried iNavX
, but most users report it similar.
One of the advantages of electronic mapping is that multiple systems can be used.
Originally Posted by seacap
You must have a non electronic backup.
Originally Posted by letsgetsailing3
This is the traditional view, but with many boats having multiple devices with electronic mapping, many with their own battery
supply, views are gradually changing.
You do need to take some precautions such as having multiple backups and one system in a faraday cage is a good idea. With the low cost of both the software and hardware
this is now quite feasible.
In many ways it is not a black and white issue with some boats carrying a small number of small scale (or out of date) paper charts.
Check the legal
requirements if you do plan to do this.