French submarine X
... that the French submarine X was the first to use twin shafts?
... that the <b id="mwBrg"><a href="./French_submarine_X" id="mwBrk" rel="mw:WikiLink" title="French submarine X">French submarine <i id="mwBro">X</i></a></b> was the first to use <a href="./Drive_shaft" id="mwBrs" rel="mw:WikiLink" title="Drive shaft">twin shafts</a>?