Central London Railway
... that at 44 tons, the locomotives of the Central London Railway's first underground trains were so heavy that they shook buildings as they passed 60 feet below and were scrapped after three years?
... that at 44 <a href="./Long_ton" id="mwFbc" rel="mw:WikiLink" title="Long ton">tons</a>, the locomotives of the <b id="mwFbg"><a href="./Central_London_Railway" id="mwFbk" rel="mw:WikiLink" title="Central London Railway">Central London Railway</a></b><span about="#mwt43" class="nowrap" data-mw='{"parts":[{"template":{"target":{"wt":"`s","href":"./Template:`s"},"params":{},"i":0}}]}' id="mwFbo" typeof="mw:Transclusion"><span typeof="mw:Entity">'</span>s</span> first underground trains were so heavy that they shook buildings as they passed 60 feet below and were scrapped after three years?