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.