 I'm Adam Griffith and I'm a final year mechanical engineering student. I've been undertaking a aerodynamic and fluid dynamic analysis of Spirit of Australia 2. So the Spirit of Australia 2 is a hydroplane, that is it's a boat that travels very quickly and skips over the top of the water like a stone. It's been designed and built by David Warby with help from his father Ken Warby. Ken Warby is the current world water speed record holder and has held the record since 1977. It currently stands at 511 kilometres an hour. Spirit of Australia 2 team is trying to increase that to 550. At about 200-250 kilometres their steering would experience an odd kick. That was a bit disconcerting so they approached the university to get some help with diagnosing cause and solving the problem. So I've been undertaking an aerodynamic and hydrodynamic analysis. I've been using ANSYS CFX software which is a computational fluid dynamic software for this process. So I set out to find the stall angle and drag force experienced by the boat's rudder and then later in the process my goal changed to determining the centre of pressure of the boat following design changes to its tail. So I installed some accelerometers in the boat to try to gauge just how bad the steering issue was. But my major problem has been trying to model the cavitation accurately and then trying to get some qualitative data to confirm my model. I now know that the rudder's drag contributes a significant proportion of the overall drag of the boat. So I'm 700 kilograms worth of drag while travelling at top speed. And I'm now working towards finding the boat's centre of pressure. That's very important because depending on where the location of the boat's centre of pressure is to the centre of gravity it can have a great effect on the boat's stability.