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NAVAL ARCHITECTURE evaluated. Glosten’s Larsen summed it up by saying, “After of the work and develop more accurate bids. Since accurate several design iterations, we believe 3D modeling has re- CAD drawings of the existing vessel were not reliable or sulted in a better overall design for both the riding public did not really exist, the cost savings from using 3D laser and the vessel operators.” scanning is at least 25% when compared to more tradi- tional shipchecking and design development methods.”

Measurable Economy For re? t work, Larsen insists that time savings are being

According to Glosten, a recently ? nished repower de- realized immediately. And, for vessels without a complete sign for an existing AMHS ro-ro passenger ferry entailed set of ‘as-built’ plans, the savings are even more signi? cant. the extensive use of 3D laser scanning early in the proj- On the other hand, says Larsen, when developing new ves- ect for all compartments impacted by the modi? cations. sel designs, Glosten is not seeing signi? cant time savings 3D models of key machinery and equipment items were from using 3D tools at the concept design level. Instead, developed and then located in the 3D models of the ex- he says, “We see more bene? t at concept design from hav- isting machinery compartments. Modi? cations impacting ing early client engagement. This client engagement and arrangements, such as large pipe routing, ventilation duct interaction leads to fewer surprises for both the client and routing, gratings, and ladder modi? cations could therefore the naval architect as the design matures. The end result is be developed to greater level of detail using the scan data a more satis? ed client whose expectations of the design are in the 3D model. Glosten’s Larsen explained, “This will al- more clearly understood.” It also promises a better bottom low the shipyards to have a more complete understanding line – for everyone involved.

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