It’s been nearly five years since Practical Sailor took an in-depth look at PC navigation software, and it’s high time that we revisited the subject. The most notable change since our last test has been NOAA’s recent release of a full set of vector charts that can be downloaded for free from the NOAA website, which greatly enhances the value of the programs that work with these charts. For this review, as in the previous one, our evaluation focused on real-time nautical navigation software aimed at U.S. recreational boaters. …