Cm93 V2 Charts Download __hot__ Install File

CM93 v2 (C-MAP93 Edition 2) charts are a legacy worldwide vector chart database popular among mariners for use in open-source navigation software like

. Although this format is technically obsolete and replaced by CM93 v3, its lack of modern encryption makes it compatible with free software that cannot legally support newer, protected versions. Downloading CM93 v2 Charts

Official distribution of CM93 v2 has been discontinued, meaning they are typically sourced through community archives and forums. Soggy Paws Archive

: This site maintains links to various legacy chart sets, including CM93 v2 for regions like SE Asia, the Indian Ocean, and the Western Pacific. Maritime Forums : Communities such as SeaTracker

often share links (frequently via Google Drive or Mega) for specific versions, such as the "CM93 11.20.15 Mariners Guide". General Search Warning cm93 v2 charts download install

: Be cautious of "free download" sites offering executable (

) files; legitimate chart sets should be folders containing many subdirectories and a version file. Installation Guide (OpenCPN)

To install these charts, you must point your navigation software to the top-level folder of the CM93 dataset. Installing Charts - OpenCPN

What Exactly is CM93 v2?

CM93 was a proprietary vector chart format created by C-MAP (now part of Jeppesen, a Boeing company). Version 2 (v2) was released in the early 2000s. It contains: CM93 v2 (C-MAP93 Edition 2) charts are a

Crucially, CM93 v2 is not official ENC (Electronic Navigational Charts). It lacks guaranteed updates, tidal streams in some regions, and official hydrographic office approval.

Navigating the Digital Seas: A Deep Dive into CM93 v2 Chart Download and Installation

If you’ve spent any time in the open-source marine navigation world, you’ve heard the legend: CM93 v2. A single folder of vector charts that supposedly covers the entire globe, from the Suez Canal to a remote Polynesian atoll. For years, it has been the unofficial standard for cruisers using OpenCPN.

But here’s the truth no one tells you: CM93 v2 is abandonware—obsolete, legally grey, and riddled with quirks. This guide will show you how to install it, where to find it (ethically), and why you might want to move on.

The Ethical and Legal Dilemma

Here lies the crux of the matter. Hydrographic offices, private companies like C-MAP, and national maritime agencies invest millions in surveying, maintaining, and updating nautical charts. An outdated chart—even a centimeter of shifted coastline or a missing wreck—can lead to grounding, collision, or loss of life. What Exactly is CM93 v2

Using a static, decade-old chart set like CM93 v2 for primary navigation is hazardous. Sandbars shift, buoys are relocated, new wind farms appear. In many jurisdictions, using unlicensed, outdated charts can void insurance or even lead to legal liability after an incident.

The ethical sailor treats CM93 v2 as a planning and backup tool, not a primary source. The responsible workflow is:

Step 3: Force a Full Database Rebuild

Step 2: Add Chart Directory in OpenCPN

  1. Open OpenCPN → Options (gear icon) → Charts tab
  2. Click Add Directory → browse to your CM93 folder → OK
  3. Important: In the chart list, double-click the CM93 entry. Ensure:
    • Chart Group is All or Base
    • Max zoom scale: leave blank (default)
    • Visible: checked

Important assumptions

2. Legality and Copyright Warning

Before proceeding, it is crucial to address the legal status of these charts.