PORTICELLO, Sicily — Divers looking out the wreck of a superyacht that sank off Sicily recovered at the very least one physique Wednesday, because the search continued for extra lacking passengers and questions intensified about why it sank so shortly.
Divers and rescue crews unloaded a physique bag from one of many rescue vessels that pulled into port at Porticello. The invention confirmed that the operation to look the wreckage on the seabed 50 meters (164 ft) underwater was a restoration one, not a rescue.
The Bayesian, a 56-meter (184-foot) British-flagged yacht, went down in a storm early Monday because it was moored a few kilometer (a half-mile) offshore. Civil safety officers mentioned they believed the ship was struck by a twister over the water, often called a waterspout, and sank shortly.
Fifteen individuals escaped in a lifeboat and had been rescued by a close-by sailboat. One physique was recovered Monday — that of the ship’s Antigua-born chef, Recaldo Thomas.
Six individuals remained unaccounted for, together with British tech magnate Mike Lynch, his 18-year-old daughter and associates who had efficiently defended him in a current U.S. federal fraud trial.
What prompted the ship to sink so shortly?
Investigators from the Termini Imerese Public Prosecutor’s Workplace, in the meantime, had been buying proof for his or her legal investigation, which they opened instantly after the tragedy though no formal suspects have been publicly recognized.
Questions abound about what prompted the superyacht, which was in-built 2008 by Italian shipyard Perini Navi, to sink so shortly, when the close by Sir Robert Baden Powell sailboat was largely spared and managed to rescue the 15 survivors.
Was it merely the case of a freak waterspout that knocked the ship to its aspect and allowed water to pour in by means of open hatches? What was the place of the keel, which on a big sailboat such because the Bayesian may need been retractable, to permit it to enter shallower ports?
“There’s a lot of uncertainty as to whether it had a lifting keel and whether it might have been up,” mentioned Jean-Baptiste Souppez, a fellow of the Royal Institute of Naval Architects and the editor of the Journal of Crusing Know-how. “But if it had, then that would reduce the amount of stability that the vessel had, and therefore made it easier for it to roll over on its side,” he mentioned in an interview.
Yachts such because the Bayesian are additionally required to have watertight, sub-compartments which are particularly designed to stop a speedy, catastrophic sinking even when some elements fill with water.
“So for the vessel to sink, especially this fast, you are really looking at taking water on board very quickly, but also in a number of locations along the length of the vessel, which again indicates that it might have been rolled over on its side,” Souppez mentioned.
Italian coast guard and hearth rescue divers, in the meantime, continued the underwater search in harmful and time-consuming circumstances. Due to the depth of the wreck — which is much deeper than most leisure divers are licensed for and at a depth that requires particular precautions — divers working in tag groups can solely spend about 12 minutes at a time looking out.
The restricted dive time is designed partially to keep away from decompression illness, often known as the “bends,” which may happen when divers keep underwater for lengthy durations and ascend too shortly, permitting nitrogen fuel dissolved within the blood to kind bubbles.
“The longer you stay, the slower your ascent has to be,” mentioned Simon Rogerson, the editor of SCUBA journal. He mentioned the tight turnaround time suggests the managers of the operation try to restrict the dangers and restoration time after every dive.
“It sounds like they’re operating essentially on no decompression or very tight decompression, or they’re being extremely conservative,” he mentioned.