Dep-O Magazine

Famous Ferrari Hydroplane For Sale

Simon Charlesworth February 20, 2012 No Comments on Famous Ferrari Hydroplane For Sale

RM Auctions will be selling the famous 1953 Arno XI hydroplane at its Monaco sale (11th – 12th May, 2012).

Built with assistance from Ferrari, Arno XI set a world water speed record of over 150mph. The hydroplane comes with well-documented provenance, including just three owners from new.

ARNO XI was the brainchild of Achille Castoldi, who, wanting to establish a world water speed record, set about developing the ultimate powerboat.

During 1952 and 1953, Mr. Castoldi, a friend of the famous Ferrari Grand Prix drivers Alberto Ascari and Luigi Villoresi, succeeded in convincing Enzo Ferrari to provide knowledge and technical assistance to develop the boat.

Powered by a 4.5-litre V12 engine, based on the Ferrari 375 GP car, the engine was modified to run twin superchargers. This resulted in a spectacular power output of around 502bhp @ 6000rpm.

On 15th October, 1953, ARNO XI achieved 241.70 km/h (150.19 mph) on Lake Iseo in northern Italy, establishing a world speed record for an 800kg boat. The record, incredibly, still stands today.

The current owner acquired the racing boat over 20 years ago, restoring it to concours condition. ARNO XI has been in the water many times since and is not only an impressive sight when seen in action but also sounds magnificent. (Arno XI limbering up!)

This remarkable and unique machine is estimated to achieve between €1.000.000 – €1.500.000 when it crosses the auction podium in May.

Ahead of the auction, ARNO XI will be displayed at the Milano Autoclassica, 17-19 February. Please visit or call + 44 (0) 20 7851 7070 for further information on the upcoming Monaco auction or to discuss consignment opportunities for RM’s Monaco sale.


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