Have a read of this - and relate it to how long Bullimore survived !
"Locator beacons activated by the crew indicated the ship was 1,000 miles east of Massachusetts early Friday, amid 15-foot seas and winds surpassing 50 knots. The air temperature was 59 degrees and the water was 60 degrees, Popiel said.
Based on those conditions, and assuming that best-case emergency equipment was utilized, the Coast Guard estimated they could not have survived more than 20 hours beyond the initial distress call. Crews from North Carolina, Georgia and Canada spent 53 hours searching an area of more than 4,000 square miles. At least one commercial liner, the 1,000-foot Maersk Kure, also took part in those efforts and located an overturned hull that matched the description of the Cheeki Rafiki, but found no sign of the sailors.
“Air and sea crews continued to search throughout the afternoon and night and into the next morning for any small indication of debris or search objects,” Popiel said in a statement. “After more than two days of searching and no indication of surviving crew members, the U.S. Coast Guard made the difficult decision to suspend search efforts.”"
Search called off for 4 Britons on 40-foot yacht missing in mid-Atlantic | Fox News