About 50 yacht clubs around New Zealand have made some simple changes recommended by LiteClub which has saved them more than $250,000.

Boat design was in Alan Warwick's blood and there was seldom a moment when he wasn't thinking about new concepts and challenges.

Dr Tom Mulholland is about to set off on a six-month circumnavigation of New Zealand to follow his V8 ambulance to 16 ports around the country to measure and manage the wellbeing of hundreds of Kiwis.