Posted by Groundloop:
All of the above are flying boats, not seaplanes. A flying boat has a fuselage which is hull shaped and sits in the water. A seaplane has floats which lift the entire fuselage above the water.
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I beg to differ - "flying boats" have boat hulls, and "floatplanes" are (generally)landplanes with floats attached, but both of these are SEAPLANES.