François Denhaut
...that François Denhaut built the world's first flying boat, or seaplane with a hull?
...that <b id="mwB5k"><a href="./François_Denhaut" id="mwB5o" rel="mw:WikiLink" title="François Denhaut">François Denhaut</a></b> built the world's first <a href="./Flying_boat" id="mwB5s" rel="mw:WikiLink" title="Flying boat">flying boat</a>, or <a href="./Seaplane" id="mwB5w" rel="mw:WikiLink" title="Seaplane">seaplane</a> with a <a href="./Hull_(watercraft)" id="mwB50" rel="mw:WikiLink" title="Hull (watercraft)">hull</a>?