Development and Application of the Spare-parts Cost Estimating Relationships

Ryu, Min-Kyu; Lee, Yong-Bok; Kang, Sung-Jin

Journal of the Korea Institute of Military Science and Technology 2010;13(4):601-611.

Min-Kyu Ryu, Yong-Bok Lee, Sung-Jin Kang

Korea National Defense University

수리부속비 비용추정식 개발과 활용방안

류민규, 이용복, 강성진

국방대학교

Abstract

Currently, a life cycle cost estimates(LCCE) is the most important factor in weapon system acquisition process. However, operation and maintenance(O&M) cost related studies are insufficient from the previous literature survey. O&M cost consists of various cost factors such a man power, maintenance and direct & indirect support costs. We have known that spare-parts cost is a key factor in the O&M cost. In this paper, we developed the spare-parts cost estimating relationships(CERs) of fixed-wing aircraft and armored vehicle weapon systems which include 4 historical cost drivers ; system acquisition cost, deterioration rate, localization rate, mission characteristic. Furthermore, we proposed the application methodologies that O&M cost estimating, total life cycle cost estimating and determination of the economic life using the spare-parts CERs.

Key Words: Spare-parts Cost Estimating Relationships, Operation and Maintenance Cost Estimating, Life Cycle Cost Estimating