Keel depth
Distance from water surface to the keel of a ship
Keel depth (sometimes given as Depth to keel) is the depth (or draft) of water from the water surface to the keel of a vessel, the deepest part. The keel establishes a commonly defined reference point to measure to.
Keel depth is useful for determining safe operating depth in shallow water.
References
- A WW II submarine depth gauge displaying "Depth to keel"
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