HMS Endymion
... that a plan to use HMS Endymion as a flagship at Harwich was abandoned due to the loss of HMS Vanguard?
... that a plan to use <b id="mwhg"><a about="#mwt17" data-mw='{"parts":[{"template":{"target":{"wt":"HMS","href":"./Template:HMS"},"params":{"1":{"wt":"Endymion"},"2":{"wt":"1865"},"3":{"wt":"6"}},"i":0}}]}' href="./HMS_Endymion_(1865)" id="mwhw" rel="mw:WikiLink" title="HMS Endymion (1865)" typeof="mw:Transclusion">HMS<span typeof="mw:Entity"> </span><i>Endymion</i></a></b> as a <a href="./Flagship" id="mwiA" rel="mw:WikiLink" title="Flagship">flagship</a> at <a href="./Harwich" id="mwiQ" rel="mw:WikiLink" title="Harwich">Harwich</a> was abandoned due to the loss of <a about="#mwt18" data-mw='{"parts":[{"template":{"target":{"wt":"HMS","href":"./Template:HMS"},"params":{"1":{"wt":"Vanguard"},"2":{"wt":"1870"},"3":{"wt":"6"}},"i":0}}]}' href="./HMS_Vanguard_(1870)" id="mwig" rel="mw:WikiLink" title="HMS Vanguard (1870)" typeof="mw:Transclusion">HMS<span typeof="mw:Entity"> </span><i>Vanguard</i></a>?