Analysis of churn and excess material at the Pearl Harbor Naval Shipyard

Abstract

For a Naval Shipyard, the amount of material ordered after beginning an availability (churn) and the amount of material ordered but not used (excess) are key performance indicators. Pearl Harbor Naval Shipyard's metrics indicate that an average of 50% of material ordered during an availability is ordered after the start of the availability and that 15% of material is excess. The NAVSEA goal for both metrics is 5%. We investigate the causes of high rates of material churn and excess at Pearl Harbor Naval Shipyard and provide recommendations for reducing them.