sentences:  After their refits, their standard crew consisted of 30 officers and 561 enlisted sailors, with an additional 9 officers and 48 enlisted men as flagships.They carried a number of small boats, including a pair of picket boats, two launches, one pinnace, two cutters, two yawls, and two dinghies.The ships' propulsion system consisted of two 3-cylinder triple-expansion engines with steam provided by twelve coal-fired, transverse Scotch marine boilers.