 The designs I submitted , and which were finally approved , were of a vessel 210 feet ( 64 m ) long ( being about 20 feet ( 6 @.@ 1 m ) longer than any vessel of her class had been built ) , and 37 • 6 beam with a displacement of 1918 tons on the load water @-@ line of 15 • 9 . The only change made by authorities at the Admiralty in these designs was the position of the paddle shaft , which they ordered to be moved several feet more forward ; the change was unfortunate as it makes the vessel , unless due care is taken in stowing the hold , trim by the head . With this exception , I am answerable for the model , specification , displacement and general arrangement of the hull of the vessel . 
