Antique's attachment is a reference to Chuck Cunningham's landmark article which is the rosetta stone for float-flying. It is applicable to floats, but the article I sent has information pertinent to flying boats. ...Only one float-the fuselage.

Dead Rise , as I understand,is the angle the hull adopts when not making any lift. V-bottom hulls have deadrise, flat-bottom hulls don't, but they skip when they land.