John Penn
... that John Penn, the engineer famed for introducing wood bearings for screw-propeller shafts in steam-powered ships, was also president of the Institution of Mechanical Engineers on two occasions?
... that <b id="mwDKQ"><a href="./John_Penn_(engineer)" id="mwDKU" rel="mw:WikiLink" title="John Penn (engineer)">John Penn</a></b>, the engineer famed for introducing wood bearings for screw-propeller shafts in steam-powered ships, was also president of the <a href="./Institution_of_Mechanical_Engineers" id="mwDKY" rel="mw:WikiLink" title="Institution of Mechanical Engineers">Institution of Mechanical Engineers</a> on two occasions?