Aging Aircraft

USAF Workload and Material Consumption Life Cycle Patterns

by Raymond A. Pyles

Download

Download eBook for Free

Full Document

FormatFile SizeNotes
PDF file 1.1 MB

Use Adobe Acrobat Reader version 10 or higher for the best experience.

Summary Only

FormatFile SizeNotes
PDF file 0.2 MB

Use Adobe Acrobat Reader version 10 or higher for the best experience.

Errata

FormatFile SizeNotes
PDF file 0.1 MB

Use Adobe Acrobat Reader version 10 or higher for the best experience.

Purchase

Purchase Print Copy

 FormatList Price Price
Add to Cart Paperback224 pages $24.00 $19.20 20% Web Discount

Current United States Air Force (USAF) plans are to retain aircraft fleets for unprecedentedly long service lives, which may be as long as 80 years. The safety, aircraft availability, and cost implications of that fleet-retention policy are unknown. This study is part of Project AIR FORCE’s Aging Aircraft Project to improve the Air Force’s ability to foresee those implications and identify actions that will mitigate or avoid some of the more severe consequences, Using data from past RAND and industry reports and from various Air Force instructions and maintenance databases, and a regression analysis, it measures how the USAF aircraft fleets’ ages relate to maintenance and modification workloads and material consumption. It provides the foundation for future estimates of the effects of those activities on maintenance-resource requirements, aircraft availability, and annual operating cost. Maintenance workloads and material consumption generally exhibited late-life growth as aircraft aged, but the rate of that growth depended on both the aircraft’s flyaway cost and the workload category. For example, long-term, late-life growth was found in all base- and depot-level maintenance workloads and material-consumption categories, except phased and/or isochronal inspections, per-flying-hour contractor logistics support, and depot modification workloads. Where data were available, all workload and cost categories were affected by differences across using commands and early-life transitional events (e.g., break-in periods, early failures). Computational approaches are being developed to forecast aircraft availability from aggregate maintenance-workload data. Future work may address how planners can exploit the equations reported here to address near-term budget and resource-requirement forecasts. This report should be of interest to force planners, maintenance production planners, maintenance policy analysts, system program directors, and logistics and cost analysts.

Table of Contents

  • Chapter One

    Introduction

  • Chapter Two

    Previous Research on the Relationship Between Age and Maintenance Workloads or Cost

  • Chapter Three

    A Broader Perspective: Life Cycle Patterns, Not Inexorable Growth

  • Chapter Four

    Estimating Age-Related Workload and Material Growth: Approach

  • Chapter Five

    Age-Related Workload and Material Cost Growth: Findings

  • Chapter Six

    Implications

Research conducted by

The research reported here was sponsored by the United States Air Force. The research was conducted in RAND's Project AIR FORCE.

This report is part of the RAND Corporation monograph report series. The monograph/report was a product of the RAND Corporation from 1993 to 2003. RAND monograph/reports presented major research findings that addressed the challenges facing the public and private sectors. They included executive summaries, technical documentation, and synthesis pieces.

Permission is given to duplicate this electronic document for personal use only, as long as it is unaltered and complete. Copies may not be duplicated for commercial purposes. Unauthorized posting of RAND PDFs to a non-RAND Web site is prohibited. RAND PDFs are protected under copyright law. For information on reprint and linking permissions, please visit the RAND Permissions page.

The RAND Corporation is a nonprofit institution that helps improve policy and decisionmaking through research and analysis. RAND's publications do not necessarily reflect the opinions of its research clients and sponsors.