The authors of this most important paper are to be commended on their excellent presentation of a most important topic. The paper carefully identifies areas where research and development have resulted in improved productivity and reduced costs. The incentives to such development are the greatest when they result in the user gaining a competitive edge. In the case of the shipbuilding industry, the Navy's effort to acquire a 600-ship navy has provided such an incentive. As has been pointed out in the paper, the industry has responded with an impressive number of improvements.

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