A shipyard, constructing an excursion vessel for an owner, was approached by a second owner that wished to contract for a second of the same vessel. Using the same contract drawings and specifications, the shipyard priced the second vessel assuming the benefit of a production learning curve and that nearly all the engineering for the first vessel would be directly applicable to the second vessel. This proved to be an erroneous and costly assumption. In the process of reviewing the construction details and testing/trials agendas, none of which were contractually defined with specificity, the second owner’s representatives were far more demanding than those of the first owner. These greater demands resulted in significant rework, excess engineering hours and more extensive tests and trials.
Lesson learned: even if the same drawings and specifications are being used for two or more vessels, the shipyard should consider each vessel to be the first of a series when it is being constructed for a different owner.