The Royal Norfolk and Suffolk Yacht club, where Roger Pratt was a member, have released a statement following his death in St Lucia.
They said 'the club was stunned to hear of the tragic death of Roger Pratt on his boat the Magnetic Attraction.
The commodore of the club sends his sincere condolences to Mrs Pratt and the family at this time.'
The club's flag is today flying at half mast.
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A part of the facility is already complete with the rest of the work expected to be ready by 17 April at the latest.
A milder night tonight, feeling warm with sunny spells tomorrow.
Fine and dry tonight. Another warm, bright day on Wednesday.