Not suggesting you are. I can only assume that the capsize was the charter boat that was overwhelmed in the Needles Channel. One crew survived in the boat. A liferaft was not deployed and it is unlikely that a liferaft would have made any difference to the outcome because two of the crew were swept overboard and the other drowned by being trapped underwater in the boat which stayed afloat and was washed ashore.

Still interested in the Thames estuary incident as it does not sseem to appear on any MAIB report.