SHIP DESIGN FOR MAINTAINABILITY: EXPERIENCE ON FFG 7 CLASS

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Abstract
The maintenance philosophy for the FFG 7 Class ships was developed by the Navy as part of the Integrated Logistics Support (ELS) Program. This philosophy prescribed the use of rotatable pools of equipment for the replacement of shipboard equipment and modules during periods of planned maintenance and the “off—ship” repair of units after failure. The objective of this philosophy was to reduce the maintenance at the shipboard level while enhancing the ship's availability.The novel aspect of the FFG 7 maintenance philosophy was the requirement to integrate maintenance planning from the outset of the ship's design. The development of the FFG 7 maintenance philosophy Design Criteria for Logistic Elements (DCLE) and maintenance accessibility effort during the Preliminary and Contract Design Phases were previously reported in the Journal. [1]. This paper provides a follow—up to that article by presenting the procedures and problems of implementing the ship maintainability requirements during Detail Design. The organizational effort and methods used to implement the program during Detail Design are described.

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