CM93 v2 charts are a legacy worldwide vector chart format commonly used with OpenCPN . While officially obsolete and often shared through unofficial channels, they remain popular for hobbyist marine navigation. 1. Verification of Format
Recent satellite imagery (such as Google Earth overlays in OpenCPN). Local NtM (Notices to Mariners). Are you planning to use these on a device so I can provide specific file path tips? cm93 v2 charts download install
That said, many cruisers use CM93 v2 for trip planning or backup in remote regions. If you choose that path, understand the risks (stale data, missing ports, zero legal liability). CM93 v2 charts are a legacy worldwide vector