This document describes a 1:48 scale model of the Grosse Yacht, a Dutch type yacht from 1678 that belonged to the Brandenburg fleet and served as the yacht for Elector Frederick Wilhelm. The model was built in 2010 by Tadeusz Probulski and includes details on the double-planked hull construction, equipment like the ship's boat and guns, and the techniques and materials used to sculpt and build each component of the ship.