Accession Number : ADA190026

Title :   Improving the Air Force's Computation of Spares Requirements: The Effects of Engines.

Descriptive Note : Final rept.,

Corporate Author : LOGISTICS MANAGEMENT INST BETHESDA MD

Personal Author(s) : King, Randall M ; O'Malley, T J ; Slay, F M ; Burke, Lauretta ; Kline, Robert C

PDF Url : ADA190026

Report Date : Dec 1986

Pagination or Media Count : 84

Abstract : The Air Force's computation of replenishment spares requirements ignores the existence of spare engines and the need for them. This overstates the contribution of engine components to aircraft availability rates and distorts the predicted availability resulting from a given investment in spares. This report documents a study of two engines, using the LMI Aircraft Availability Model, which shows that these errors can be significant. The magnitude and direction of the error depends on the balance between requirements for whole engines and the existing spares levels. In addition to quantifying the effects of engines, this report suggests specific ways in which engines can be included in the availability-based techniques now being introduced into the Air Force's computation. Keywords: Inventory modeling; Inventory systems; Multi-indenture inventory model.

Descriptors :   *INVENTORY, *SPARE PARTS, *AIRCRAFT ENGINES, AIR FORCE, AIRCRAFT, AIRCRAFT MODELS, AVAILABILITY, COMPUTATIONS, ENGINE COMPONENTS, ENGINES, ERRORS, MODELS, RATES, MILITARY REQUIREMENTS, MATHEMATICAL MODELS, COMPUTERIZED SIMULATION, AIR FORCE EQUIPMENT

Subject Categories : Logistics, Military Facilities and Supplies

Distribution Statement : APPROVED FOR PUBLIC RELEASE