V2 Charts Download !!top!! Install - Cm93
: Official support for CM93 v2 ended around 2014, and many versions found online are outdated or distributed via peer-to-peer sites. For safety, always cross-reference these with official, up-to-date NOAA ENC charts or o-charts . Where to Download CM93 v2 Charts
: Set your display category to Standard or Mariner's Standard . Selecting "All" displays every single underwater cable and minor point, which heavily slows down screen panning.
: Ensure your final path looks similar to C:\Charts\CM93\GENCAT.DAT . Avoid nested folders like C:\Charts\CM93\CM93_2015\CM93\ . Double folders will prevent the software from reading the charts correctly. Step 3: Installing CM93 v2 in OpenCPN cm93 v2 charts download install
Add the chart folder via DOTS → Chart Folders → Add , select "Full update," and click Accept. The app shares OpenCPN's chart engine, so the process is very similar.
| Risk | Explanation | |------|-------------| | | Many ports changed since 2015; new buoys, dredged channels missing | | No official support | Cannot be used for commercial navigation under SOLAS or local regulations | | Legal liability | If an incident occurs using CM93 v2, your insurance may be voided | | Corrupted copies | Common CRC errors in .A/.B/.C files cause missing cells | | Cell boundary jumps | Discontinuities at chart cell edges due to old compilation | : Official support for CM93 v2 ended around
The ethical sailor treats CM93 v2 as a , not a primary source. The responsible workflow is:
). Do not leave them in your "Downloads" folder to avoid accidental deletion. Open OpenCPN Settings: Launch OpenCPN and click the (wrench icon) button. Add Chart Directory: Chart Files Add Directory Navigate to and select your main Update the Database: Ensure "Scan Charts and Update Database" is checked. Selecting "All" displays every single underwater cable and
The world appeared.
Official CM93 v2 is obsolete. C-MAP has long since moved to subscription-based, updated vector charts (e.g., C-MAP MAX, C-MAP Reveal) with continuous updates, high-resolution bathymetry, and official hydrographic data. However, for many users, the barriers are significant:
CM93 version 2 charts use a unique data structure unlike standard S-57 ENC charts. A complete global dataset typically includes 144 subdirectories, each covering a geographic area.