At 6.15 p.m. on 4th June, 1970, a member of the crew of the Helensburgh, Dunbartonshire, IRB saw a sailing dinghy with one man on board in difficulties three quarters of a mile off shore. The IRB was launched at 6.20.

There was a fresh easterly breeze with a moderate sea. It was low water. The man who was in an exhausted condition was taken on board the IRB and landed at the IRB station where first aid was rendered by the crew. He was subsequently conveyed by the police to the Victoria Infirmary. The IRB then recovered and beached the dinghy, returning to her station at 7.30..