In 1953, a wealthy
boat privateer named Achille Castoldi was determined
to set world speed record on water. He
commissioned an 800kg-class three-point hydroplane
hull. For the engine, he turned to the new up and
comers of the auto racing scene – Scuderia Ferrari.
Ferrari supplied Castoldi
with a type 375 V-12 Grand Prix engine that
displaced 4494cc, making 385 brake
horse power. This engine could spin the hydroplane's twin bladed
propeller at 10,000 rpm!!
At the January 1953 Campione
d’Italia races, prior to the official two-way
run, Castoldi piloted his Arno XI to an
unofficial top speed in excess of 124mph during the
shakedown testing. However, his rival, Mario Verga achieved a
speed record of 125.68mph. Two weeks later, Mario Verga surpassed his own record with a two-way top speed of
In preparation for breaking Verga’s new record, Castoldi had
a new engine built. Arno XI’s new methanol burning,
twin supercharged 4.5L Ferrari power plant produced
600 brake horse power.
Ferrari sent Stefano Meazza,
the chief race engineer, to help
prepare the new supercharged engine. Grand Prix
champion Alberto Ascari showed support by attending
the event. On the morning of October 15, 1953, Achille Castoldi succeeded in smashing the 800kg
class speed record with an average “flying
kilometer” two-way speed of 150.49 mph. He followed
up the performance later that day by setting another
record in the “24 nautical miles” event.
This Ferrari hydroplane model features:
construction (very important).
- The hood is wooden
plank-on-frame, not a piece of plastic.
Heartwood Honduras Mahogany.
- 11 layers of paint and varnish. Each was left to
dry and micro sanded before apply another layer.
Hundreds of brass nails.
- Epoxy waterproof.
Hood can be
opened up for your RC conversion