The Tritone was the most important model in the Riva stable, the largest and most expensive boat, and the only to be equipped with twin engines. Its size, power and long range (thanks to large fuel tanks) made it an ideal boat for sea-cruising, and it did much to forge Riva’s reputation in the Mediterranean. Evolving from the BQ 69 designed in 1950 it was given its name in 1953. Its hull design drew on the Corsaro, with the addition of a second row of seats in the cockpit, behind which the stern area was completely decked and used as a sun bed.

Hacker-Craft is the name given to boats built by The Hacker Boat Co., the oldest builder of wooden motorboats in the world. It is an American company, founded in Detroit, Michigan in 1908 by John Ludwig Hacker (known as John L. Hacker or just “John L.”)

Alongside the Aquarama, the Ariston is perhaps Riva’s best known model, and certainly one of its most popular. When production ceased in 1974, twenty-four years after the model was first conceived, over 1,000 boats had been built. Over this period, many modifications were made, not least its length – which ranged from 6.2 to almost 7 meters – and the size of the single engine fitted, which ranged from 105 hp to 350 hp in the Super Ariston, powerful enough to take it to a top speed of 80 km/h