Name: Arno XI ; hydroplane
Type : Racing Boat; Speedboat
The Arno XI is a hydroplane inspired by Achille Castoldi in the early 1950s. Built by the Cantiere Timossi shipyard, located in Azzano on the Lake Como.
Castoldi wanted to made a world water speed record so he convince then Ferrari racing drivers Alberto Ascari. After that, Luigi Villoresi to influence Enzo Ferrari to supply him with a 4.5-litre, V12 Ferrari engine. However, the same engine that gave Ferrari his first Grand Prix victory with the Ferrari 375 F1. The engine was installed in a Timossi three-point racing hydroplane hull. Nevertheless, Castoldi managed to further increase horsepower by connect two superchargers. In conclusion, Arno XI was later sold and raced in numerous competitions, finally retired in 1960.
Informal racing took place in Madison, Indiana as early as 1911. But the first major race didn’t occur until 1929. After that, when the now-defunct Mississippi Valley Power Boat Association conducted a race for the 725 Cubic Inch Class.
Most importantly, A speedboat or thunder boat is the fast motorboat, where the hull shape is such that at speed, the weight of the boat is supported by planing forces, rather than simple buoyancy.
Early designs of the 1920s were often built by amateurs, who employed the lightest materials available to them at the time. The aviation industry has been the main source of engines for the boats.