Hugh was very very rich, and had a very very big yacht built... so nice that when the Presidential yacht USS Potomac was deemed unfit for open water duty, the US Navy decided the next best yacht (or the best, as we just read that the Potomac wasn't in good condition) was Hugh's private yacht that had been custom built for him by the Bath Iron Works (same shipyard that built submarines for the US Navy)
" President Truman spent more time aboard than any president spent on a presidential yacht "
http://www.globalsecurity.org/military/systems/ship/pg-56.htm
