1994: Design: Architects, CAD, the Design Database

Design Team: The design process has been a collaboration between the Naval Architects, the Builder and the “Owner” (i.e., Dorothy & Steve). There are about 200 construction drawings completed so far. The first 70-odd drawings were developed by the Naval Architects, the remaining 130 drawings and documentation by the Owner.

CAD Drawings: Morrelli & Melvin developed the Adagio design in 3D in AutoCAD, incorporating the overall yacht layout design developed by Carl Schumacher. We have continued the detailed design in 3D using DenebaCAD/MacOS – using the Morrelli & Melvin AutoCAD 3D model as the starting point. All of the examples on this website are from DenebaCAD, including the renderings. When Adagio launched in June, 2000 Steve had developed another 200 or so CAD drawings detailing systems, sail handling, and interior designs.

Database: Perhaps one-half of our design effort is reflected in a FileMaker Pro® database. The Bill of Material (BOM) is the foundation layer . There are 36 other tables, resulting in a total database size of about 18MB. There are about 100 pages of bill-of-material/weight-analysis which itemize (hopefully) every gram of construction materials, equipment, stores, spares and personal gear (and X,Y locations of same). For short we call this the BOM, which is the master FileMaker Pro® database for the project. One of the key motivations for building and updating such a detailed breakdown is to ensure that the true sailing displacement and center of gravity of the vessel are known (both before the final lines are drawn, and as construction proceeds).

1993: Design: Original Requirements

It’s surprising that our original requirements [PDF] still hold today. Sure, we could write a more comprehensive requirements document today — but that is really the role of specifications, which we developed over a four-year period while awaiting building to begin.

For the record, there is little of the 1993 requirements that we would amend today. The only item that comes to mind is “resistance to striking floating trees”. We simply had no idea that British Columbia {and to a lesser degree, Alaska} have forestry policies that allow timber companies to just forget about any logs or whole trees that are left for other vessels to ram.

That requirement would probably have eliminated our choice of saildrives and spade rudders — both important contributors to performance.