The hydromill module is constituted by a heavy steel frame on which two milling drums and a centrifugal mud pump are mounted. In order to correct the module verticality deviation, 12 independent mobile flaps are positioned on the module surface. Furthermore, a simultaneous or independent tilting plate can be installed as optional for the best verticality correction, especially in case of leaned layers of rock. All Soilmec modules are set with a 2D or 3D sensor developed for the module positioning control, which is managed by the Hydromill DMS.
New rubbing strakes, new toe rails, completely re-built cockpit with new curved coamings. New mahogany winch islands, new stainless steel fuel tank with new fuel line and fuel filter. New rudder fastenings, new teak cabin top handrails, mast re-built and new lower section added. New galvanised chain plates, new forepeak sole, new saloon upholstery, new self-draining cockpit sole with new hoses and through hull fittings. Full interior re-paint. Gally re-fitted. Underwater hull payed with hemp and sealed with red lead putty. Iron keel sand blasted and re-painted. All exterior surfaces of the vessel taken back to bare wood and re-painted or varnished.