plate keel

The ship had a flat plate keel and was shaped very flat and full to maximize cargo capacity.

The most common type of keel is the "flat plate keel", and this is fitted in the majority of ocean-going ships and other vessels.

Arrows, spears and rocks bounced vainly off the plated keel, unable to stop the corsairs' battering ram striking Marshank's gates with tremendous force.

If a double bottom is fitted, the keel is almost inevitably of the flat plate type, bar keels often being associated with open floors, where the plate keel may also be fitted.