Scott Dickson wrote in news:a3429a83-471d-435d-aa5a-
:

..."deadrise" to me? I know zip about boat terms, and see this often.
I'll expect the usually fires to start...batten down the
hatches!!!!!!!!!!


It's the angle at the keel between the left and right bottom of the hull
measured in cross-section at a given point along the keel. A flat-bottomed
boat like a jonboat or a punt has no deadrise, while a deep-V hull has lots
of deadrise. Being an angle, deadrise is measured in degrees. By the way,
the outer parts of the hull adjacent to the keel are called the 'floors' of
the hull, so the deadrise is just the angle between the floors. Another
way to say it is deadrise is the chine-keel-chine angle measured in cross
section at some given point along the keel. Lots of deadrise gives a
smoother ride, but makes it harder to plane.