Always looking to improve its product line,
the company joined forces with Diab some
five years ago as its technology partner in order
to move from contact molding to closed
molding in an effort to produce lighter
and stronger boats. Moreover Motonautica
Vesuviana wanted to improve the environment
for its build team by virtually eliminating
VOCs (volatile organic compounds)
from the molding process.
One of the newest vessels in its range
is the stylish Mito 31, a 9.35 meter (30.67 ft)
RIB that is capable of carrying 16 people at
up to 60 knots. The Mito 31 is believed to be
the first Italian RIB to be built entirely with
closed molding technology.
The vessels hull, deck, console, roll bar and engine cover are all produced using core infusion based on Divinycell structural cores whereas smaller
parts such as drawers are manufactured using RTM Light.
Probably another unique feature of the
Mito 31 is that through the combination of
structural engineering optimisation, the use
of sandwich cores and the infusion process,
Motonautica Vesuviana has been able to
eliminate the longitudinal and transverse
stiffeners that are normally present in boats of
this type and still achieve the required levels
of strength and stiffness. In other words the
hull is a true monocoque structure.
This approach not only speeds the manufacturing
process – the complete infusion
molding process is carried out in just 10 days
by a two person team – but also significantly
reduces the weight of the vessel. Motonautica
Vesuviana estimates that the Mito 31 (without
engine) is over 30% lighter than similar vessels
of this type.
This reduction in weight has been
translated into higher maximum speed,
lower fuel consumption (80 litres per hour
[21.2 g/h] at 40 knots) and a greater range.
Motonautica Vesuviana also maintains that
the Mito 31 offers a more comfortable ride
due to the stiffness of its hull and the higher