Download or read book Estimating Operating and Support Models for U S Air Force Aircraft written by Ming-Cheng Wu and published by . This book was released on 2000-03-01 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: The USAF Visibility and Management of Operating and Support Cost (VAMOSC) system is an information system which reports historical O&S costs of Air Force weapon systems. Source data for VAMOSC comes from a number of USAF financial, logistics, inventory, and operating systems. This centralization and consolidation of O&S cost data provides information that helps weapon system managers and planners make better decisions for DoD and USAF in the operation, maintenance, and management of weapon systems. In earlier analysis, flyaway costs, flying hours, number of aircraft and aircraft fleet age were identified as important variables for explaining and predicting O&S Costs. The earlier models need to be re-estimated to determine whether aircraft types and operation mission types are applicable and how they have separate effects on O&S costs. This thesis shows that the structure of the earlier models continues to be applicable. The models, therefore, are a useful tool for understanding the determinants of O&S cost.

Download or read book An Appraisal of Models Used in Life Cycle Cost Estimation for USAF Aircraft Systems written by Kenneth E. Marks and published by . This book was released on 1978 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Budget Estimating Relationships for Depot level Reparables in the Air Force Flying Hour Program written by Gregory G. Hildebrandt and published by Rand Corporation. This book was released on 2007 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Budget estimating relationships (BERs) for flying depot-level reparables (DLRs) explain the direct effect of specified variables on obligated funds associated with spare parts that directly support the U.S. Air Force (USAF) Flying Hour Program. In FY02, net sales of DLRs to Air Force commands hit historic highs. To provide the Air Force Cost Analysis Improvement Group with a tool to better understand the commands-- budgetary submissions, we develop several explanatory BERs to understand why flying DLRs are at their particular levels. Using longitudinal regression statistical methods, we explain the historical net sales of flying DLRs using estimating models that relate net sales to the contemporaneous values of aircraft characteristics, operational tempo, and time-related variables. This is but one part of a larger project to develop better estimating methods for use by the acquisition community and to examine the impact of Air Force and DoD policies on weapon system costs. The findings will also be of interest to those in the national security community who are involved in analyzing alternative military postures, and to members of the aircraft industry's analytical community.

Download or read book An Estimation of USAF Aircraft Operating and Support Cost Relations written by Gregory G. Hildebrandt and published by . This book was released on 1990 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: To understand the availability of data to identify operating and support (O & S) costs, this Note develops aggregative cost estimating relationships to explain O & S costs. A database called VAMOSC is used in conjunction with other information on aircraft characteristics to relate O & S costs per aircraft to flying hours per aircraft, flyaway cost, number of aircraft, and design age. At the total O & S cost level, flyaway cost is an acceptable proxy for aircraft type and the mission design series year of initial operational capability. These cost estimating relationships give impressive explanatory results; whether they have equal predictive power remains to be seen. They may be helpful for assessing Air Force trade-offs between modernization and operating tempo and eventually for understanding the cost of achieving alternative readiness levels.

Download or read book A U S Air Force Cost Analysis Cost Estimating Model Program for Use with the TI Programmable 59 Handheld Calculator written by Joe M. Balding and published by . This book was released on 1978 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper documents a Texas Instruments 'TI Programmable 59' calculator program that uses the U.S. Air Force Cost Analysis Cost Estimating (CACE) model described in Air Force Regulation 173-10, Volume I, USAF Cost and Planning Factors, dated 6 February 1975. The CACE model was designed with a 'building block' approach to estimate annual operating costs of aircraft weapon systems. The model is useful to Air Force organizations, other Government agencies, and government contractors for cost analysis, life cycle cost exercises, or studies concerned with cost effectiveness comparisons between weapon systems. The program described in this paper provides the user with a means of using the CACE model with a hand-held programmable calculator, eliminating lengthy manual computation or the necessity of using a computer. With its calculator connected to the Texas Instruments 'PC-100A Print Cradle, ' the program allows the user to select among several cost factor input methods, estimate output formats, and summarization options.

Download or read book A Parametric Cost Model for Estimating Operating and Support Costs of U S Navy Aircraft written by Mustafa Donmez and published by . This book was released on 2000-12-01 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study provides parametric O&S cost models for future US Navy aircraft acquisition programs based on physical and performance parameters. The proposed parametric cost models provide decision makers with a tool for developing rough-order-of-magnitude annual O&S cost estimates for future US Navy aircraft acquisition programs. The historic aircraft cost data was provided by the Naval Center for Cost Analysis (NCCA) in a spreadsheet format and the data were extracted from the Navy Visibility and Maintenance of Operating and Support Cost (VAMOSC) data warehouse. After validating the assumption that the average annual O&S cost for any aircraft type/model/series is constant from year to year, cost estimating relationships are developed. The first model developed is based on multivariate regression. In this case, forward stepwise regression was used to find the model with the best fit. Since the multivariate regression model turns out to be impractical, having more than 30 variables in the equation, a tree-based model is presented as an alternative. Additionally, single variable cost estimating relationships are formulated based on the physical and performance parameters length, weight, and thrust.

Download or read book Introduction to the USAF Total Force Cost Model written by H. G. Massey and published by . This book was released on 1977 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Designed to produce time-phased total manpower and dollar requirements estimates for 15-year projections of alternative future USAF forces and support structures, the USAF Total Force Cost Model--sometimes referred to as the FORCE model--is currently operating on computers in the Air Staff Cost and Economic Analysis Division, Directorate of Management Analysis, Comptroller of the Air Force. This report presents an overview of the model, including its basic purposes and its relationship to the planning and programming process. Some examples and suggested applications are presented. Only the general features of the model and the methodology it employs are discussed. The FORCE model has potential for application in analysis of future forces for research and development planning; studies of alternative weapon systems for mission-oriented subsets of the force; and analysis of alternative future basing plans, training structure, or other support issues. (Author).

Download or read book A Cost Model for USAF Acquisition of Commercial Aircraft for Service in the Special Air Mission Fleet written by and published by . This book was released on 1993 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this research was to develop a cost estimating model which would allow cost estimators the ability to quickly and accurately estimate the acquisition of Air Force Special Air Mission fleet aircraft. The literature review revealed studies, government contracts, and trade publications which served as source data. This information was supplemented by interviews with acquisition specialists and contractors and incorporated into a database. Several estimating techniques were created and used to estimate the various cost elements. The Commercial Aircraft Integrated Cost Estimating Tool (CAICET) model was then developed to incorporate the estimating techniques with the database. This was accomplished by integrating dialog boxes to access the information and estimate the program acquisition. The CAICET model provides the analyst with the ability to estimate an acquisition program based on a few specific parameters concerning the missionization of the aircraft. These parameters include interior configuration, avionics, mission communications, and self-sufficiency items. Once this information is input, the CAICET model provides the analyst with a real-time estimate in standard AF Form 1537 format. Cost models, Aircraft models, Commercial aircraft, Air force procurement, Acquisition.

Download or read book Operating and Support Cost Estimating Guide Sample Analysis Air Force Aircraft at DSARC III written by COST ANALYSIS IMPROVEMENT GROUP WASHINGTON D C. and published by . This book was released on 1980 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: The following sample of a CAIG(Cost Analysis Improvement Group) Operating and Support Cost Estimate Report covering a hypothetical case has been developed to further assist the cost analyst in the preparation of cost estimating reports submitted to the DSARC and CAIG during the acquisition process of a new weapon system. The sample is intended to show an example of how Operating and Support Costs can be developed for CAIG review with available data bases and one example of an appropriate format for presentation of cost estimates. The existing A-7E data base was used only to illustrate the need to relate an estimate to an existing similar system and to ensure a constant relationship between values and the Cost Element Structure. Each case should address that data which is the most complete and accurate for its purposes. The level of detail depicted in this example may be greater than that which is available or appropriate to a specific case.

Download or read book Metrics to Compare Aircraft Operating and Support Costs in the Department of Defense written by Michael Boito and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Prepared for the Office of the Secretary of Defense."

Download or read book A New Approach to Modeling the Cost of Ownership for Aircraft Systems written by Kenneth E. Marks and published by . This book was released on 1981-01-01 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Air Force Aircraft written by United States. General Accounting Office and published by . This book was released on 1996 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Look at Tomorrow s Tactical Air Forces written by Lane Pierrot and published by DIANE Publishing. This book was released on 1997 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Improving the Efficiency of Engines for Large Nonfighter Aircraft written by National Research Council and published by National Academies Press. This book was released on 2007-07-30 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of the important national defense contribution of large, non-fighter aircraft, rapidly increasing fuel costs and increasing dependence on imported oil have triggered significant interest in increased aircraft engine efficiency by the U.S. Air Force. To help address this need, the Air Force asked the National Research Council (NRC) to examine and assess technical options for improving engine efficiency of all large non-fighter aircraft under Air Force command. This report presents a review of current Air Force fuel consumption patterns; an analysis of previous programs designed to replace aircraft engines; an examination of proposed engine modifications; an assessment of the potential impact of alternative fuels and engine science and technology programs, and an analysis of costs and funding requirements.

Download or read book Demonstration of Improved Software Support Labor Estimation For Air Force Operational Flight Programs Through Functional Orientation written by and published by . This book was released on 1993 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study demonstrated two approaches to improve current software support effort estimation models for aircraft software. Both approaches involved a functional orientation not used by existing models. The first approach demonstrated how to orient a model to reflect the block change cycle modification process and how to represent support effort changes over time in order to improve effort estimation accuracy. Current software models do not reflect the support environment or the temporal characteristics of aircraft software support. The second approach demonstrated how to calibrate a model by properly selecting source data in order to increase accuracy. Support calibration is not addressed by current models. A literature search affirmed the validity of both approaches and the methodology. In addition, a standard description of the block change cycle was developed and validated. A prototype estimation model was derived from the COCOMO model and included a unique support calibration. Data was obtained from Air Force Software Support Centers but was unusable, so data was generated from the prototype for the demonstration. A method that was developed to compare the prototype with current models demonstrated that the prototype is an acceptable model.

Download or read book Analysis and Forecasting of Air Force Operating and Support Cost for Rotary Aircraft written by Matthew E. Laubacher and published by . This book was released on 2004-03-01 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research explores forecasting techniques to estimate the Cost per Flying Hour (CPFH) for Air Force Helicopters. Specifically, this research evaluates three separate forecasting techniques to predict the CPFH for better estimating and budgeting by the U.S. Air Force. It starts by empirically analyzing the Operating and Support cost by CAIG categories for each helicopter. For forecasting purposes, the actual CPFH figures were compiled from FY96 to FY03 for a total of eight MAJCOMs flying the MH-53J/M, the HH-60G, or the UH-1N helicopters. The research explores the use of a 3-year moving average, the single exponential smoothing method, and Holt's linear method. These forecasting techniques were used to forecast for FY02 in evaluating the best methodology to forecast the CPFH for FYO4. By comparing both the budgeted and forecasted figures for FY00 to FY02 to the actual CPFH figures in the same years, the forecasting methods were able to more accurately predict the actual CPFH for all of the MAJCOMs that achieved a budget variance of less than 20 percent. It was discovered that Holt's linear method was the best forecasting method for 75 percent of the time series analyzed since they contained positive trends. Finally, these techniques were employed to provide the best possible forecast of the CPFH for FY04. (35 tables, 30 figures, 22 refs.)

Download or read book Estimating C 17 Operating and Support Costs written by Christopher D. Purvis and published by . This book was released on 2001-03-01 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research provides justification for experimenting with system dynamics (SD) for performing Operation and Support Cost estimates. For the C-17 Globemaster III cargo aircraft, these costs could exceed $64 billion dollars. Also, many of our weapon systems are beginning to reach the end of their effective life span, and discussions about the impact of aging, on aircraft, has become a hot topic in the literature. System Dynamics is a modeling methodology developed in 1958, but never used extensively for cost estimating. SD offers unique capabilities to the cost estimator, including the ability to model causal relationships. This capability offers the cost estimator the ability to estimate O&S costs, spares availability, and mission capable rates, throughout the life span of a weapon system. The primary goal of this thesis endeavor is to prove the applicability of SD for cost estimating by demonstrating the various outputs of a SD model, including fixed and variable costs; secondarily, showing how the results from the SD model can provide a better estimate of future costs, when compared to models in use today.