The Formula 1 Powerboat World Championship (also F1) is an international motorboat racing competition for powerboats organised by the Union Internationale Motonautique (UIM) and promoted by H2O Racing, hence it often being referred to as F1H2O. It is the highest class of inshore powerboat racing in the world, and as such, with it sharing the title of F1, is similar to Formula One car racing. Each race lasts approximately 45 minutes following a circuit marked out in a selected stretch of water, usually a lake, river, dock, or sheltered bay. Qualifying periods decide the formation of the grid, and timing equipment records the performance of competitors to decide the final classification and allocation of championship points. History The concept of a single unified championship for inshore powerboats had been conceived three years previously in 1978 when David Parkinson, an experienced PR manager, was offered the support of Mercury Marine, one of his clients, if he could establish such a series. The concept became the Canon Trophy, sponsored by another of Parkinson's clients, Canon Inc. A steady escalation in engine development between Mercury and arch-rival OMC was already underway as the Canon Trophy was formed, and this arms race ultimately resulted in massively powerful V8 engines being used and led to the creation of the OZ class. Each manufacturer offered as many as half a dozen drivers with a free supply of these OZ class engines in a bid to succeed. The OZ engines differed from the ON class which was centred around a standard 2-litre capacity and consequently OZ machines, with their superior power, swept all before them. Matters came to a head when, in an attempt to extract an even greater advantage, Renato Molinari turned up with two engines on the back of his boat at the Italian Grand Prix. A petition was signed by 28 drivers in 1980 to outlaw the OZ boats and the Formula ON Drivers Association (FONDA) was born. Mercury withdrew their T4 engine and the split was confirmed. OZ and ON classes would have their own championships in 1981. Somewhat understandably, both championships attempted to use the title of Formula 1 to market themselves as the pinnacle of powerboat racing. For much of 1981 however it was largely irrelevant. John Player had chosen to support the OMC-powered OZ championship, giving it not only an advantage in speed and technology, but also marketing. The championship