News of Barras' departure led the British to realize that the Chesapeake was the probable target of the French fleets. By 31 August, Graves had moved his five ships of the line out of New York harbor to meet with Hood's force. Taking command of the combined fleet, now 19 ships, Graves sailed south, and arrived at the mouth of the Chesapeake on 5 September. His progress was slow; the poor condition of some of the West Indies ships (contrary to claims by Admiral Hood that his fleet was fit for a month of service) necessitated repairs en route. Graves was also concerned about some ships in his own fleet; "Europe" in particular had difficulty manoeuvring.