CM93 refers to a proprietary vector chart format originally developed by
from Navico/C-MAP. Legitimate users would have purchased MaxSea with the chart DVD, but that product is discontinued. cm93 v2 charts download
If you have searched for the phrase you are likely a sailor on a budget, a student learning navigation, or a long-distance cruiser preparing for an offshore passage. This article will explain exactly what CM93 v2 is, where to find it (legally and otherwise), how to install it, and the critical risks and legalities you must understand before using these charts for real-world navigation. CM93 refers to a proprietary vector chart format