As already stated rather repeatedly throughout this thesis, it is not enough to simply have a weight based analysis in order to determine costs. In an effort to produce lower costs, DDG-51's deckhouse was built with thin plate. This resulted in excessive plate distortion due to the welding process. This distortion made the assembly of blocks highly labor intensive requiring the use of hydraulic rams. Figure 39 shows the clear benefit of using a non weight based system to analyze ship construction costs.