Accession Number : ADA538329


Title :   Composite Aircraft Life Cycle Cost Estimating Model


Descriptive Note : Master's Thesis


Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT


Personal Author(s) : Lambert, Daniel B


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a538329.pdf


Report Date : Mar 2011


Pagination or Media Count : 89


Abstract : Composite materials are beginning to comprise a greater percentage of structural materials used throughout aircraft production. The increased usage of composites has led individuals within the Air Force community to revisit aircraft life cycle cost, LCC, models. A series of affordability initiatives has culminated in significant evidence over the last decade to better quantify the impact of primarily composite structures in aircraft. The Advanced Composite Cargo Aircraft, ACCA, a research effort sponsored by the Air Force Research Lab, attempted to determine the impact of part size and large scale composite components on LCC for cargo aircraft. This research evaluates the data provided by the ACCA program and data from aerospace industry partners to modify the existing LCC models. This research finds that a relationship exists between relative part count and touch labor hours for certain cost categories, notably, design, design support, and testing. In particular, a percentage reduction in part count drives a corresponding percentage reduction in these select cost categories. These findings suggest that reduction in part count filter through most of the major cost categories during development and production. The research findings suggest that the current LCC models require modifications in the current cost estimating relationships to capture these impacts.


Descriptors :   *COMPOSITE STRUCTURES , *COMPOSITE AIRCRAFT , *COMPOSITE MATERIALS , COUNTING METHODS , COST ESTIMATES , THESES , LIFE CYCLE COSTS , FILTERS , LABOR , TRANSPORT AIRCRAFT , AEROSPACE INDUSTRY , CONSTRUCTION MATERIALS , AIR FORCE RESEARCH , LIFE EXPECTANCY(SERVICE LIFE) , PRODUCTION , COMMUNITIES


Subject Categories : Aircraft
      Laminates and Composite Materials
      Structural Engineering and Building Technology


Distribution Statement : APPROVED FOR PUBLIC RELEASE