(57) A boat, particularly a service-boat for crafts, ships or the like having at least
a central part of the hull made like a rigid shell (1, 1') and being combined with
hollow peripheral floating elements (2, 2', 22). According to the invention, the peripheral
floating elements (2; 2', 22) are secured to a central shell-like rigid part (1, 1')
of the hull, in a overturning way, alternatively in a active floating position, in
which they are placed outside over the rigid part of the hull (1, 1') and in a storage
or transport position in which said floating elements (2', 22) are placed inside the
rigid part (1, 1') of the hull.
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