Study on the evolution of large yacht project and construction as consequence of environmental rules.

Italy is a leader in the production of yachts, especially in the range between 50 and 70 m, but with the capability to deliver yachts of over 100 m Internationally this field of industry, internationally, has to deal with the environmental rules, and these have a severe impact on the project and the industrial choices. The paper aims at presenting a study about the main rules that became effective in last years, especially the ones becoming operational in 2020 and the consequent impacts in the methodology of project and construction. As a case study I examined a project, where the yachts examined are sister ships, delivered in last 5 years, where the ship and the project have been modified from the first yacht to the following, in order to already respect some of the criteria expected (exhaust pollution with SCR, ballast water treatment etc) in order to verify the changes in design and impact in the construction.