Fuel and propulsion are of course not the only items to gain efficiency. The entire trim optimization deserves all the naval architects and engineers attention in the design stage. Understanding the sailing profile, influences of the weather, the crew needs, and the possible changes that can be expected. Should we design for 30 years? Or could we design for 15 years or even less? Materials, modularity, current, and future applicable fuels, all these aspects have to be taken into account. Not only does this require knowledge and experience, but also some guts and a ambitious client. Luckily we have always been in good company and have been able to push the boundaries in almost every ship we’ve ever designed.