Aviation Readiness Requirements Oriented to Weapon Replaceable Assemblies (ARROWS)

​Multi Echelon/Multi Indenture RBS sparing model for aviation weapon systems. The ARROWS model is the Navy standard consumer-level planeside RBS model and will be used for all aviation systems. The Service Planning Optimization (SPO) model within the Navy Enterprise Resource Planning (Navy ERP) program will replace legacy ARROWS. Operational needs, logistics infrastructure, and hardware information are input into the model. The sparing to availability model calculates the number of each type of spare part to be kept at each maintenance level site in order to satisfy an Ao target value. The model divides the spares budget target by the failure rate for each spare part candidate. This creates an index representing readiness per dollar spent for each part. The part with the highest index is selected. The calculations and selections are repeated until the Ao target is reached, constrained by the spares budget target.

Note: This tool has no direct link. Update is currently pending. 

Processes Supported

• Diminishing Manufacturing Sources & Material Shortages (DMSMS)
• Failure Modes & Effects Analysis (FMEA) / Failure Modes Effects & Criticality Analysis (FMECA)
• Level of Repair Analysis (LORA)
• Supply Chain Management (SCM)

Departments Associated

• Navy / Marine Corps

Integrated Product Support Elements Addressed

• Maintenance Planning and Management
• Supply Support

Disclaimer
This tool was identified as part of a product support analytical tools database provided solely to assist defense acquisition workforce professionals to identify best value product support solutions which optimize system readiness and life cycle cost. Neither the Department of Defense or the Defense Acquisition University provide any warranty of these tools whatsoever, whether express, implied, or statutory, including, but not limited to, any warranty of merchantability or fitness for a particular purpose or any warranty that the contents of the item will be error-free. This analytical tools database should under no circumstances be considered as being all-encompassing, and is in no-wise meant to endorse the capabilities or products of any particular individual, company, or organization.