Cm93 V2 — Charts Download !new!

Always treat CM93 v2 charts as a secondary, reference backup. Never rely on them as your sole source of navigation. How to Install CM93 v2 Charts in OpenCPN

Because these charts are no longer officially distributed by C-Map, they are typically found through third-party cruising community sites or archive links: Cruising Community Archives: Sites like S/V Soggy Paws cm93 v2 charts download

While commercial ECDIS uses licensed, updated C-MAP sets, many sailors look for older or archival versions for cruising. Always treat CM93 v2 charts as a secondary, reference backup

: The main directory must contain a single empty verification file featuring an extension format of YYYYMMDD.EXD . This file serves as the edition or release stamp for that specific historical dataset. Why Version 2 Matters : The main directory must contain a single

: The top-level directory must contain an empty file with the extension, such as 20110803.EXD , which indicates the release date. Chart Detail Level : Folders are sub-divided into categories from (world overviews) to (highly detailed harbour plans). ⚠️ Safety and Security Warnings

: A complete set typically consists of a "CM93" root directory containing approximately 144 subdirectories (e.g., "00300000" to "04501020") and an edition file with a .EXD extension (e.g., 20110803.EXD ).

Mariners in forums have reported that some CM93 v2 cells are , the global standard for GPS. This means your plotted position might not be accurate on the chart display for certain areas, a fault that has been noted for years. Even correct data on an offset grid is useless for navigation.