The US Coast Guard has suspended its search for four missing British crew members, including two from Somerset. They located the Cheeki Rafiki a week after the vessel went missing and later discovered its life raft still secured aboard.
The loss of two Somerset sailors and their crew mates in the Atlantic last May was a "tragic accident", the head of the Marine Accident Investigation Branch (MAIB) has said.
But, Chief Inspector Steve Clinch, said the disaster also identified important safety issues that should reduce the chances of anything similar happening.
Paul Goslin and Steve Warren, were onboard the Cheeki Rafiki with James Male from Romsey and Andrew Bridge from Farnham, when the yacht went missing in rough seas after leaving Antigua.
Mr Clinch said that during the investigation "it became clear that opinions were divided as to whether or not Cheeki Rafiki's return passage across the Atlantic Ocean was a commercial activity".
He added that he made a recommendation to the Maritime and Coastguard Agency to improve the guidance on when small vessels are required to have commercial certification and that this "should help resolve what has, for too long, been a grey area".
With no sign of a life raft or of debris, and with nearly 20,000 square miles having been searched, the hunt continues for another day.
Veteran yachtsman Tony Bullimore tells ITV News that there is a "strong possibility" the yachtsmen are still alive in the life raft.
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