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Illustrates estimation of support investment costs and recurring operations and support costs through a Model for estimating Aircraft Cost of Ownership (MACO), which also provides a framework for future research. MACO is an outgrowth of an earlier evaluation of the strengths and weaknesses of the most widely used aircraft life cycle cost models. It combines new algorithms for major, maintenance-related costs with formulas drawn from existing models for other cost elements. MACO relates a full set of ownership cost elements to component level reliability and maintainability characteristics and to aircraft design, operations, logistics, and deployment parameters, although the MACO equations would have to be reorganized before they could be used to estimate costs according to the cost structure of the latest Cost Analysis Improvement Group guide. MACO computes resource quantities in units that can be related directly to Air Force programming categories, including base maintenance manning (by work center), depot manning, and recoverable spares inventory levels. Output and input parameters accommodate annual changes in system parameters and operating conditions such as component reliability and aircraft inventory size and activity rates.
Airplanes, Military --- Cost of operation --- Mathematical models. --- United States. --- Procurement
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Library automation --- Bibliotheken--Informatienetwerken --- Bibliothèques--Information [Réseaux d'] --- Informatienetwerken in bibliotheken --- Information [Réseaux d' ] dans les bibliothèques --- Library information networks --- 021.63*1 --- Libraries --- -Library information networks --- Local area networks (Computer networks) --- LANs (Computer networks) --- Local area computer networks --- Computer networks --- Electronic data processing --- Information networks, Library --- Library networks --- Networks of libraries --- Data transmission systems --- Information networks --- Library cooperation --- Documentation --- Public institutions --- Librarians --- Bibliotheeknetten en LAN, WAN --- Automation --- Distributed processing --- 021.63*1 Bibliotheeknetten en LAN, WAN --- Mechanization of library processes --- Library applications --- Local area networks (Computer networks) - Library applications. --- Library information networks. --- Libraries - Automation.
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Describes a series of parametric equations for use in estimating the depot maintenance cost of new Air Force aircraft, particularly for the five major maintenance categories: airframe rework, engine overhaul, airframe component repair, engine component and accessory repair, and avionics component repair. The equations are intended to provide cost estimates for Defense Systems Acquisition Review Council Milestone II, at which point some design details of major aircraft subsystems (airframe, engine, avionics) are available. The report presents a single set of equations that are the most representative and applicable to the widest range of estimating situations, but presents alternative equations and supporting data and analyses for use by the interested reader.
Airplanes, Military --- Maintenance and repair --- Estimates. --- United States. --- Management.
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Although life cycle analysis is widely used as a management tool, considerable uncertainty still exists about its effectiveness with respect to economic tradeoffs, funding decisions, and resource allocations. This report evaluates some of the most widely used life cycle cost models: AFR l73-10 models (BACE and CACE); the Logistics Support Cost model; the Logistics Composite model; the MOD-METRIC model; AFM 26-3 Manpower Standards; Air Force Logistics Command Depot Maintenance Cost Equations; the DAPCA model; and the PRICE model. The models are rated within a framework incorporating a set of cycle cost elements and a set of cost driving factors. Color-coded illustrations summarize the results. The models are shown to have many shortcomings that limit their usefulness for life cycle analyses in which estimates of absolute, incremental cost are required. Specific areas are identified where driving factor/cost element combinations are not adequately addressed.
Airplanes, Military --- Cost accounting. --- Costs. --- United States. --- Procurement. --- Weapons systems
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