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Maximum Navigational Draft

For surface ships, the maximum navigational draft represents the greatest depth, in feet, of the keel, including projections, when operating at the assigned draft limit.

For submarines, the maximum navigational draft corresponds to the full-load surface condition N, or condition M where applicable, with maximum oil in normal and fuel ballast tanks. Conditions N and M for submarines are defined in the Naval Sea Systems Command Manual, Chapter 29.

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