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World Trade Center Ship Documentation

World Trade Center Ship Remains 3-D modelled

When the timbers first arrived to the CRL in April of 2011, they were inventoried and photographed. In addition to this, shipwreck timbers are typically traced at a 1:1 scale, and measurements and details are added to those drawings.

Ship timber readied for scanning

For this project, we decided to try something new, and create a high-definition laser scanned 3D model of each timber using a FARO arm with a laser scanner attachment. Each timber was scanned at least twice, and then scientists at the lab processed the scan data to create highly accurate 3D models of each and every timber.

Using a scanner to digitally map the shape of one of the ship timbers

Once the timber models were complete, researchers virtually reassembled the ship, and used that virtual model to derive a set of ships lines for the part of the hull that survived. Those lines were then used as the basis for a theoretical reconstruction of the ship, and a wooden model of the ship is now being constructed.

Screen image of the 3-D rendering software showing the ship remains

Additionally, the digital models were 3D printed at a 1:10 scale, and these 3D prints are being used to build a physical model of what the ship looked like as it was found.

3-D model printed copy of the ship remains

Below is an example of the types of models produced for each timber.

These models were also used to make traditional 2D timber drawings, as seen below:

traditional 2-D timber drawings of the remains

Additionally, several of the timbers have been X-rayed to help researchers understand how the ship was built. The world trade center ship was built with very few transverse fasteners between the floors and the futtocks; i.e. the segments of the 'ribs' that make up the skeleton of the ship were not attached to one another, they were only attached to the planking. By X-raying the floors and futtocks, we were able to determine the pattern of transverse fasteners used.

X-ray of ship showing pattern of fasteners used in building


Conservation Stages

⇒ Stage 1: Documentation
Stage 2: Mechanical Cleaning
Stage 3: Chemical Chelation
Stage 4: Bulking
Stage 5: Freeze Drying
Stage 6: Final cleaning and assembly


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