Electronic Charts? Humber Mouth, Humber Approaches and Humber River. Download 7 files and Unzip into Root Directory (usually C:\) nav1.zip (1.2 MB) nav2.zip. (1.6 MB) nav3.zip. (456 KB). These 3 together deploy and control the charts. mouth.zip (1.7 MB) approaches.zip (1 MB) river.zip (1.1 MB). They need the 3 "nav" files and "mouth.zip". windowssystem.zip (1.4 MB) ".dll" files allow it all to work.
