While the design and building processes for new yachts have become an exact science, whereas a refit requires more experience and improvisation, all based on a healthy dose of professional knowledge. The course of a refit mainly depends on the scope of the project and the location where it is performed. The scope can vary from a small adaptation to a complete rebuild, including lengthening the hull and superstructure decks or installing a completely new engine room.
The refit process itself generally starts with a feasibility study, a new General Arrangement and, if desired, outline sketches and renderings. A report is compiled showing the consequences of the refit including an overview of all necessary activities (engineering and workshop). This provides a solid starting point for a quotation for the complete refit.
The next phase starts with fairing the new lines and determining the new (hull) shape, followed by making detail and class approval drawings for construction, outfitting and technical systems. This phase also includes the making of all required class and strength calculations.
If desired we can supply a complete set of cutting files, including nestings and product information of plates and profiles. To accelerate the refit process even further, you can opt to have this ‘package’ translated into an actual metal building kit, a so-called 3D puzzle, so the yard can have the new section(s) ready before the ship arrives at the yard.
To guarantee a seamless connection to the existing shape and construction, we always survey the yacht first using a combination of common sense and 3D laser equipment. After the refit an inclination test and sea trials are performed as input to produce all the required documents and approvals.