Cm93 V2 Charts Download //free\\ Install May 2026

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

| Problem | Likely cause | Fix | |---------|--------------|-----| | No charts shown | Wrong folder selected | Ensure folder contains .DAT files | | Black or missing areas | Corrupt or incomplete set | Re-download another source | | Red X on chart | Chart cell not licensed | Use Chart Files tab → Force Unlock All | | Very slow zooming | SENC rebuild needed | Delete ~/.opencpn/SENC/ folder (Linux/macOS) or C:\ProgramData\opencpn\SENC (Windows) | cm93 v2 charts download install

4.2 Steps

Assuming you have a legitimate or archived copy of CM93 charts, here is how they are typically installed and configured in OpenCPN, the most popular software supporting this format. CM93 v2 charts are a legacy worldwide vector

1. Launch OpenCPN → Go to Options (gear icon) → Charts tab.
2. Chart Files tab → Click Add Directory.
3. Navigate to and select your CM93_v2 folder (not its subfolders).
4. Ensure Force Full S-63 SENC Rebuild is unchecked (unless errors appear).
5. Click OK – OpenCPN will scan and index the charts.
6. Go to Advanced tab → Verify CM93 Offset (usually 0.0).
   Set CM93 Detail Level to All for full range.

Step 1: Locate the Chart Files

Configuring OpenCPN:

v2 Indicators

: The directory should contain approximately 144 subdirectories (named with 8-digit numbers) and a specific .EXD file (e.g., 20110803.EXD ). Launch OpenCPN → Go to Options (gear icon)

Step 2: Add the CM93 Chart Directory