The largest sailing yacht in the world was rolled out of its shed last week and word has it that Jeff Bezos is its owner.

Oceanco, a Dutch superyacht builder, rolled the 417-foot yacht onto a barge in Zwijndrecht, the Netherlands, a town near Rotterdam, and moved it to a new location in Alblasserdam for rigging. It is slated to be completed in 2022, but citing confidentiality, the builder refused to confirm that Bezos is its owner.

Currently known as Y721, the black hull with classic exterior lines and a clipper bow will receive three enormous masts and a bowsprit. Its cost is estimated to be around 500 million dollars.

Reports say a separate support vessel is being constructed by Dutch superyacht builder Damen to accommodate a helicopter, which can’t land on Y721 because of its masts. Bezos’ girlfriend has a pilot’s license and Bezos reportedly has also taken flight lessons.