Elliott Bay Design Group (EBDG) is using today’s scanning technology to help in the restoration of one of Puget Sound’s oldest surviving wooden tugs, the Parthia. Built in 1906 by James Hall, the tugboat had a long-life servicing ships that called at Washington State’s capital city, Olympia. A true icon of the city’s waterfront, she is also a five-time winner of the Olympia Harbor Days vintage tugboat races.
From an article in MarineLog by Nick Blenkey.
Unfortunately, in the summer of 2017 the tugboat sank in Hood Canal while under private ownership. Thanks to several members of the Puget Sound Maritime and Olympia’s South Sound Maritime Heritage Association (SSMHA), the Parthia was salvaged and is now being restored to her original glory. After restoration, she will be permanently located on Olympia’s waterfront as a historical maritime exhibit.
In April, EBDG traveled to the shipyard, where the vessel is undergoing repairs, to scan the exterior of the hull as well as sections of the vessel’s interior. Engineers used a FARO laser scanner, which was graciously donated for use on the project by Foss Maritime, to create a “point cloud” of the hull’s exterior. The data is used to create a 3D surface model in Rhino and a conventional 2D lines plan drawing for the owner. These models will aid in the restoration of the Parthia. The scan was completed safely while abiding by the state’s social distancing rules and guidelines set during the COVID-19 pandemic.
EBGD says 3D scanning is a valuable tool used to gather data with ultimate accuracy. Scanning a vessel is a quick process that delivers a wealth of knowledge and provides our engineers the ability to evaluate data and solve problems more precisely. The result is an effective visual communication tool that vessel owners, operators and shipyards can use to make better, more informed decisions.
EBDG has found the technology especially helpful during the coronavirus pandemic. One engineer can conduct a 3D scan while following social distancing guidelines. The finished product can then be shared digitally and accessed by many. This eliminates the need for an outsider to board a vessel.
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