According to the original Operation Overlord plan, Cherbourg was supposed to be captured within eight days of D-Day (D+8) and, despite the expectation that the Germans would carry out systematic demolitions, be opened within three days.[33] Pipe laying was to commence four days later,[34] with the Bambi system fully operational by D+75 (seventy-five days after D-Day).[35] The discovery of an additional German division in the vicinity in May led to the expected capture being pushed back ten days from D+8 to D+18.[36] In the event, the port of Cherbourg was captured on 27 June (D+21),[37] and due to the extensive damage the first POL tanker did not discharge there until 25 July (D+49).[38] In the meantime, fuel was supplied through the small port of Port-en-Bessin by coastal tankers, and from ocean-going tankers using two Tombola lines at Port-en-Bessin for the British and five at Sainte-Honorine-des-Pertes for the Americans. The Tombola lines had a tendency to break, and the Chants fared poorly in the rough weather of the English Channel. By 28 July sixteen of them were laid up for repairs at a special tanker repair facility that had been established at Hamble-le-Rice.[35]