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"This report examines several issues associated with the cost-per-flying-hour (CPFH) metric used in the Department of Defense (DoD). CPFH is calculated as the ratio of an aircraft fleet's operating-and-support (O&S) costs divided by its flying hours. Subsets of an aircraft fleet's total annual O&S cost are budgeted in DoD for the flying-hour program used to achieve and maintain flight-crew proficiency and used to calculate hourly rates when DoD aircraft are flown on a reimbursable basis. In addition, other aggregations of costs are used to calculate CPFH and compare O&S costs of different aircraft for various other reasons, including informing decisions on aircraft acquisition and force structure. This report examines usages of CPFH in DoD, including its use to compare O&S costs of different aircraft. The report recommends a definition of CPFH to be used when comparing aircraft and recommends several ways the cost and usage data should be normalized. The report also recommends a cost-per-aircraft metric (where primary aircraft inventory [PAI] is used for the number of aircraft) as an alternative metric for comparing the O&S costs of aircraft."--Page 4 of printed paper wrapper.

Airplanes, Military --- Cost of operation --- Evaluation. --- Maintenance and repair. --- United States. --- Aviation supplies and stores --- Costs.

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This report examines the consequences of increasing the Navy depot's role in the logistics system by directing its resources toward the day-to-day needs of the fleet. Using a simulation that examined whether mission capability could be improved during a 90-day war through some combination of responsive stock management, proactive use of depot repair capabilities, and shortened transportation pipelines between carriers and depots, the authors found that priority repair at the depot can make on important difference in mission capability, that shortened pipelines can have large effects on mission capability, and that constructing an aviation consolidated allowance list (AVCAL) based on aircraft availability goals may offer promise for maximizing aircraft availability per dollar spent. The study also concluded that data synthesis is a missing ingredient in the Naval aviation logistics management system that inhibits the depot's ability to react quickly in support of sudden demand peaks.

Aircraft carriers --- United States. --- Aviation supplies and stores. --- Equipment --- Maintenance and repair. --- Inventory control. --- Combat sustainability.

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Using the planning and management processes in Army aviation maintenance, the authors examine how the Department of Defense (DOD) adjusts resource requirements in response to input price changes. The report is based on an extensive literature survey and several hundred interviews conducted during 1977-1979. Because defense activities are dynamic, many of the specific problems of Army aviation maintenance have changed since the period of this report. The study does not seek to solve specific problems in Army aviation maintenance, however, or even to focus exclusively on Army aviation maintenance itself. It addresses a problem that has persisted over the entire period since World War II--DOD's reluctance to recognize changing input prices and respond accordingly. The report offers no specific policy recommendations; rather it aims to provide a better understanding of how DOD's planning and management processes work, to provide a foundation upon which future work can build to define policy options that improve these processes.

Airplanes, Military --- Maintenance and repair. --- United States. --- Aviation supplies and stores.

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United States --- France --- Armed Forces --- Fuel --- International cooperation. --- Aviation supplies and stores --- Supplies and stores --- Law and legislation.

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This report describes Version 6 of the Dyna-METRIC capability assessment model RAND developed to support logistics planning. Using information about the planned usage of aircraft, the characteristics of the aircraft components, and their demand for logistics resources, Dyna-METRIC assesses the effects of wartime dynamics, produces operational performance measures, and identifies potential problems. Version 6 improves upon earlier versions by incorporating a more fully developed representation of the repair process and its constraints. It also considers the effects of additional sources of uncertainty and some strategies that might mitigate that uncertainty. The report provides users with a comprehensive description of the model's motivation, capabilities, methodology, and use. A sample analysis based on 30 avionics components of the F-16C/D aircraft illustrates its use.

Airplanes, Military --- Maintenance and repair --- Mathematical models. --- United States. --- Operational readiness --- Aviation supplies and stores --- Dyna-METRIC.