The Impact of Turn Around Time in Brazilian Navy Inventions
NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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This thesis analyzes how the operation of helicopters produced and supported by manufacturers in various countries affect Brazilian Navy repairable inventories levels and costs. The research is based on a scenario where the Brazilian Navy operates 68 helicopters, manufactured by contractors in USA, France, England and Italy, and the Brazilian Navy relies on these manufacturers for depot-level maintenance. We develop a simulation model representing the repair process of a group of critical helicopter components and measure the turn-around time TAT. We also develop a readiness based model to find the optimal inventory level of the selected group of helicopter components to achieve a desired operational availability under these TATs. The results were applied to a spreadsheet model to find the differences in spare levels and associated costs necessary to operate the helicopter fleet. Our research concludes that the helicopters source has a substantial impact on repairable inventories levels and costs. Furthermore, this impact is large enough to influence decisions in the Brazilian Navy acquisition process of equipment and weapons systems.
- Logistics, Military Facilities and Supplies
- Military Forces and Organizations