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Full-Text Articles in Operations and Supply Chain Management

Effects Of Alternative Performance Criteria Upon Composition Of Air Transportable Spare Parts Kits, Murat V. Buyukacar Mar 2001

Effects Of Alternative Performance Criteria Upon Composition Of Air Transportable Spare Parts Kits, Murat V. Buyukacar

Theses and Dissertations

Airlift capacity is a definitive factor in the success of large-scale military operations. History proves that the demand for airlift soon exceeds its capacity during simultaneous deployment of forces. Therefore good solutions to the airlift capacity problem are important. This thesis contributes to the resolution of this problem by seeking ways to reduce readiness spare parts packages (RSPs) deployed for Air Force squadrons through addition of airlift criteria into the RSP selection process. We find that item cost, weight, and volume are three important criteria for RSP computations. We then offer a method for implementing these three criteria in the …

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Logistics Transformation: Centralizing Air Force Logistics Information Command And Control, Darrell O. Burghard Mar 2001

Logistics Transformation: Centralizing Air Force Logistics Information Command And Control, Darrell O. Burghard

Theses and Dissertations

Current Air Force logistics information systems do not provide Air Force leaders and single managers a real-time sole-source logistics information system able to assess current capabilities and identify potential future problem items prior to becoming systemic problem parts. Centralizing information may provide improved command and control and support of the warfighter by reducing the time it takes to track down and identify information. Using a Value Focused Thinking approach, this thesis explored how the Air Force can improve the accessibility of Air Force logistics information. This study began at the behest of the AFMC LG/CD in an effort to determine …

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An Analysis Of The Interaction Between The J3 And J4 War Planning Staffs During The Phases Of Crisis Action Planning, Michael J. Colvard Mar 2001

An Analysis Of The Interaction Between The J3 And J4 War Planning Staffs During The Phases Of Crisis Action Planning, Michael J. Colvard

Theses and Dissertations

A principal operational concept of Joint Vision 2020 is that of Focused Logistics, which promotes a merger of information and logistics technologies. The Defense Advanced Research Projects Agency's Advanced Logistics Project (ALP) supports this concept of Focused Logistics and seeks to leverage information technologies to obtain control over the logistics pipeline. The current campaign planning process is limited by the information made available to the decision-makers. In order for ALP to assist the decision-maker in selecting a single optimal deployment plan, the founding assumptions of alternatives considered must be valid. Logistical issues are major constraints in the war planning process. …

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United States Air Force Graduate Degrees From 1990 To 2000: A Comparison, Jonathan G. Downing Mar 2001

United States Air Force Graduate Degrees From 1990 To 2000: A Comparison, Jonathan G. Downing

Theses and Dissertations

Throughout its history, the United States Air Force has been concerned with technical graduate education. In 1947, the Ridenour Report stated the importance and need of Air Force officers with technical graduate degrees. This emphasis has served the Air Force well, but there is concern among senior Air Force leaders that there has been an erosion of these technical skills and graduate education. This research will examine the issues surrounding technical graduate education in the Air Force and will address the possible loss of such technical education. The results of this research provide specific statistical data and analysis on the …

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Aircraft Maintenance Performance: The Effects Of The Functional Decentralization Of On-Equipment Maintenance, Mark A. Commenator Mar 2001

Aircraft Maintenance Performance: The Effects Of The Functional Decentralization Of On-Equipment Maintenance, Mark A. Commenator

Theses and Dissertations

The Air Force has implemented various aircraft maintenance organizational structures. The implementation of the Objective Wing in the early 1990s was the latest occurrence of reorganization. This research looks at the effect of the type of aircraft maintenance organizational structure on aircraft maintenance performance. The type of organizational structure was defined by the functional centralization of the on-equipment maintenance. Aircraft maintenance performance was measured using TNMCM rates, fix rates, repeat/recur rates, man-hours per flying hour, and scheduling effectiveness rates. Three F-15 wings and three F-16 wings were selected to compare the changes in aircraft maintenance performance and to determine if …

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A Quantitative Decision Support Model To Aid Selection Of Combat Aircraft Force Mixes For Contingency Deployment, Paul G. Filcek Mar 2001

A Quantitative Decision Support Model To Aid Selection Of Combat Aircraft Force Mixes For Contingency Deployment, Paul G. Filcek

Theses and Dissertations

Selection of combat aircraft during crisis action planning can be of critical importance. In determining the value of force mixes, it is proposed that one can evaluate extrinsic and intrinsic value separately. Intrinsic value is the designed capability of a weapons platform to accomplish a specified aerospace mission. Extrinsic value is the expected appropriateness of such platforms, given the environmental characteristics in which they must operate. This research develops a decision support tool for planners in determining the extrinsic value of force mixes, which then expedites the selection of best overall force mixes. The research included: content analysis of official …

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Analysis Of The Effect Of Centralizing Management Of Mobility Readiness Spares Package Assets, Ian R. Hester Mar 2001

Analysis Of The Effect Of Centralizing Management Of Mobility Readiness Spares Package Assets, Ian R. Hester

Theses and Dissertations

Air Force supply doctrine requires the management of large numbers of spare parts in Mobility Readiness Spares Packages (MRSPs). The MRSPs are designed to support deployed aircraft for the first 30 days of a conflict, and can be quite large. When units from several bases deploy to the same operating location, they each bring their full MRSP. This results in a large logistics footprint that may be reduced by taking a system-level approach. This thesis examined the impact of centralized MRSP management on kit size and cost. The Aircraft Sustainability Model (ASM) computer program was used to evaluate MRSPs for …

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Factors Influencing The Air Force Cycle Ergometry Fitness Assessment, Heather M. Hunn Mar 2001

Factors Influencing The Air Force Cycle Ergometry Fitness Assessment, Heather M. Hunn

Theses and Dissertations

This research investigated the influence of exercise activities, situational factors, and personality on the Air Force submaximal cycle ergometry test (SCET). Data were collected via a questionnaire administered to 209 active duty students and faculty assigned to the Air Force Institute of Technology during their required annual SCET. Stepwise multiple regression and ANOVA were used to find the proportion of variance explained by the significant predictors of SCET results for various subsets of the sampled population. For the group as a whole, self-reported test anxiety explained 24% of the variance in SCET results, while reported aerobic caloric expenditure during exercise …

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Pitfalls Of The A-76 Process, Justin W. Lavadour Mar 2001

Pitfalls Of The A-76 Process, Justin W. Lavadour

Theses and Dissertations

The DoD and the Air Force have turned to outsourcing support functions as a way to reduce both costs and the number of soldiers required to provide Support for combat forces. The process used to determine whether it is economically feasible to outsource a function is called A-76, after the circular that describes the process. Outsourcing, like any other tool, must be used in the right way, in the correct environment if the desired goal to be reached. To understand what these goals are, it is necessary to examine past case studies where outsourcing has worked, to determine why outsourcing …

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The Effect Of Improving The Logistics Pipeline On Supply Support Of Aerospace Expeditionary Forces, Steven L. Martinez Mar 2001

The Effect Of Improving The Logistics Pipeline On Supply Support Of Aerospace Expeditionary Forces, Steven L. Martinez

Theses and Dissertations

One of the biggest considerations for an Aerospace Expeditionary Force (AEF), in terms of cost and airlift requirement, is the use of aircraft spares kits to support combat operations. To date, these kits are built on the assumption that there would be no resupply for the first 30 days of a contingency. However, with more efficient transportation and information resources available today, it seems logical that resupply would occur much more quickly. If so, the Air Force should be able to trim its wartime stocks of aircraft spares. This thesis investigated the effect of improving the logistics pipeline on the …

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Requirements-Based Methodology For Determining Age Inventory Levels, James A. Mackenna Mar 2001

Requirements-Based Methodology For Determining Age Inventory Levels, James A. Mackenna

Theses and Dissertations

The purpose of this research was to illuminate crucial areas in analyzing AGE needs on an operational flightllne and assist in determination of AGE inventory levels. Further refinements could result in more objective and accurate assessments of actual flightline AGE needs and associated risks involved with reduction of AGE inventory levels. The research in this thesis consists of a discrete event simulation to determine desired AGE inventory level through an analysis of aircraft launches and wait time for AGE support by varying AGE (mean time between failure) MTBF and AGE inventory. Stochastic inputs for aircraft failures, AGE delivery times, and …

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The Assessment Of Program Managers' Preceptions Of Importance Of Stability To Overall Project Outcomes, Yigit Sen Mar 2001

The Assessment Of Program Managers' Preceptions Of Importance Of Stability To Overall Project Outcomes, Yigit Sen

Theses and Dissertations

This research investigates the manager's perceptions of the importance of stability to overall project outcomes. The assessment is based on the importance and usefulness of both the general attributes of management for the activities in a specific program, and the specific measures being employed by the managers. The classical measures of Cost, Schedule, Performance were assessed as well as Earned Value and proposed measures of Stability. In this research, the scope is limited to the management of relatively complex, large-scale projects involving the design, development and delivery of military aircraft and support systems. In order to obtain data for the …

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Air Mobility Command Passenger Reservation System Analysis, Robert E. Tuttle Mar 2001

Air Mobility Command Passenger Reservation System Analysis, Robert E. Tuttle

Theses and Dissertations

The Department of Defense (DoD) has undergone a massive downsizing in an effort to comply with President Clinton's directive to 'reinvent' government making it more efficient. Therefore, the DoD revamped its $3.5 billion annual official business travel program. The core of this project is the Defense Travel System (DTS), an Internet based solution providing personally arranged travel, largely circumventing the base transportation offices. This thesis looks at DTS's Air Mobility Command passenger reservation management. This program is comprised of four geographically separated Passenger Reservation Centers located in Scott AFB IL, Japan, Germany and Hawaii. The objective of this study was …

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The Distributer's Three-Dimensional Pallet-Packing Problem: A Human Intelligence-Based Heuristic Approach, Erhan Baltacioglu Mar 2001

The Distributer's Three-Dimensional Pallet-Packing Problem: A Human Intelligence-Based Heuristic Approach, Erhan Baltacioglu

Theses and Dissertations

The Distributor's Pallet Packing Problem is to load a set of distinct boxes with given dimensions on pallets or in containers to maximize volume utilization. This problem is still in its early stages of research, but there is a high level of interest in developing effective models to solve this NP-hard problem to reduce the time, energy and other resources spent in packing pallets. In its search to improve operations, the Air Force is also making an effort to solve this problem. Building an analytical model and developing a genetic algorithm approach have been tried, but the problem needs more …

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A Method For Fms Countries To Maximize Clssa Service Levels While Minimizing Costs Through Optimal Requisitioning Patterns, Robert A. Wasik Mar 2001

A Method For Fms Countries To Maximize Clssa Service Levels While Minimizing Costs Through Optimal Requisitioning Patterns, Robert A. Wasik

Theses and Dissertations

The Cooperative Logistics Supply Support Arrangement (CLSSA) is a program designed to provide follow-on supply support for weapon systems procured by foreign military sales (FMS) countries from the United States. CLSSA calculates a Stock Level Quantity (SLQ) for each item based on demand history, item lead-time, and requisitioning patterns. Item SLQs affects program cost and service levels to FMS customers; a high SLQ level improves service levels, but also creates higher costs. The author created a model to replicate the CLSSA formulation used to calculate SLQs, using different Combinations of demand levels and item lead-times to determine the impact that …

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Development Of An Instrument To Identify Unique Supply Officer Knowledge, Christopher A. Boone Mar 2001

Development Of An Instrument To Identify Unique Supply Officer Knowledge, Christopher A. Boone

Theses and Dissertations

Air Force supply officers possess a unique body of knowledge. This unique body of supply officer knowledge is an Air Force intellectual asset. The value of these intellectual assets depends on the value created by the application of the organization's knowledge and the value his knowledge creates. This thesis establishes a process for measuring the value created by unique supply officer knowledge. The first step in the methodology is to identify mandatory supply knowledge. This was accomplished through review of Air Force guidance and se of a knowledge audit questionnaire. The knowledge audit provides a means for assessing what knowledge …

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Estimating Deployed Airlift And Equipment Requirements For F-16 Aircraft In Support Of The Advanced Logistics Project, Matthew W. Goddard Mar 2001

Estimating Deployed Airlift And Equipment Requirements For F-16 Aircraft In Support Of The Advanced Logistics Project, Matthew W. Goddard

Theses and Dissertations

The Advanced Logistics Project (ALP) is a 5-year DARPA effort to investigate automated architectures to increase the efficiency of logistics support for deploying combat forces. The Mission-Resource Value Assessment Tool (M-R VAT) is a joint AFIT/AFRL adjunct processor to the ALP. The purpose of the M-R VAT is to select optimal force packages to meet the needs of theater commanders. This research supports the development of the M-R VAT's capability through the development of an airlift estimation function and validating equipment requirement rule-sets. This airlift estimation function will allow the M-R VAT optimization algorithms to constrain the selection of the …

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Evaluation Of The Air Force's Alternative Fuel Vehicle Program In Complying With Executive Order 13149, Janette D. Ketchum Mar 2001

Evaluation Of The Air Force's Alternative Fuel Vehicle Program In Complying With Executive Order 13149, Janette D. Ketchum

Theses and Dissertations

The Air Force must comply with Executive Order (E.O.) 13149, which includes cutting its vehicle fleet's petroleum fuel usage 20 percent by 2005. This thesis examines the Air Force's current alternative fuel vehicle (AFV) program, which is centered around the acquisition and use of compressed natural gas (CNG) vehicles, to determine whether it has been effective, and how the AFV program should be tailored to contribute to the Air Force's efforts to comply with E.O. 13149. The results of the study discussed here suggest ways in which the Air Force's AFV program can be modified to increase the program's impact …

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A Cost Comparison Between Modes In The Shipment Of Mission Capable Parts Within The Continental United States, Jason L. Masciulli Mar 2001

A Cost Comparison Between Modes In The Shipment Of Mission Capable Parts Within The Continental United States, Jason L. Masciulli

Theses and Dissertations

A numerous amount of Mission Capable Parts (MICAPs) are shipped throughout the world by the Air Force. These parts are required in order to meet mission requirements. MICAPs are often shipped via an express, small parcel air carrier, like Federal Express (FedEx). However, there is a lower cost alternative: Less-Than-Truckload express carriers. In using actual Air Force MICAP shipping data, an 11 percent savings was shown if the lowest cost carrier, either FedEx or Roadway Express, an LTL express carrier, was used in shipping these MICAPs. Also, in using simulated shipping data, over 50 percent of all types of shipments, …

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The Distributor’S Three-Dimensional Pallet-Packing Problem: A Mathematical Formulation And Heuristic Solution Approach, Brian P. Ballew Mar 2000

The Distributor’S Three-Dimensional Pallet-Packing Problem: A Mathematical Formulation And Heuristic Solution Approach, Brian P. Ballew

Theses and Dissertations

It is through practice and experience Air Force loadmasters are able to pack the Air Force standard HCU-6/E (463L) pallets efficiently. Although the loadmasters perform their jobs exceptionally well, the Air Force is in search of a model that will more efficiently pack the pallets. We have developed a mathematical formulation of the three-dimensional pallet-packing problem which minimizes the amount of unused space on a pallet. The formulation ensures each box is packed with the correct volume and dimensions, and ensures the volume of all the boxes packed is less than the available pallet volume. Additionally, the formulation ensures that …

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A Combined Inventory And Delivery Model For Repairable Items, Bahtiyar Eren Mar 2000

A Combined Inventory And Delivery Model For Repairable Items, Bahtiyar Eren

Theses and Dissertations

Traditionally, logistics analysts have treated the delivery problem separate from the inventory and repair problems. In other words, each of these three problems-delivery, inventory, and repair-are treated individually. We combine the vehicle routing problems and inventory allocation problems in a single formulation. Furthermore, lateral re-supply is considered, in that supplies are not only available from the main depot, but also from other bases. After we get the lateral re-supply information, we set a delivery allocation plan out of the main depot. Such allocations are then delivered via vehicles stationed at the main depot. There is a repair capability for each …

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Using Rsm, Doe, And Linear Regression To Develop A Metamodel To Predict Cargo Delivery Of A Time Phase Force Deployment Document, Kenneth S. Browne Mar 2000

Using Rsm, Doe, And Linear Regression To Develop A Metamodel To Predict Cargo Delivery Of A Time Phase Force Deployment Document, Kenneth S. Browne

Theses and Dissertations

Air Mobility Command (AMC) uses the Airlift Flow Model as their primary tool to estimate the amount of cargo delivered in a Time Phase Force Deployment Document (TPFDD). The primary objective of this research was an exploratory investigation in the development of a metamodel to predict the amount of cargo delivered from a TPFDD by AMC into a theater. In creating a valid metamodel the analyst would be able to quickly provide the decision-maker with accurate insights should input parameters change. This would save valuable time and replace the need to physically change the input parameters and re-run the simulation. …

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A Statistical Analysis Of The Variability Experienced In Dla Administrative And Production Lead Time, Kieran F. Keelty Sep 1999

A Statistical Analysis Of The Variability Experienced In Dla Administrative And Production Lead Time, Kieran F. Keelty

Theses and Dissertations

This study examined the variability experienced in the administrative and production lead times of consumable items managed by the Defense Logistics Agency (DLA). Assets were categorized based on an item manager's determination that an asset was a problem part, and whether the asset was purchased for stock replenishment or direct vendor delivery. The methodology was a two-sample t-test of aggregated data to determine if significant differences existed between the mean deviations from the system lead times of various combinations of categories. The study produced results indicating that a significant difference did not exist between the mean deviations of problem parts …

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Pollution Prevention Cost Savings Using Supply Chain Reengineering, Gregory S. Webb Sep 1999

Pollution Prevention Cost Savings Using Supply Chain Reengineering, Gregory S. Webb

Theses and Dissertations

Supply chain management was explored as a tool to prevent hazardous waste and reduce operating costs. Previous research had shown that pollution prevention measures were often costly and no expectation of cost savings could be realized. The reengineering of the Air Force hazardous material supply chain brought about by the Hazardous Material Pharmacy Program was tested to evaluate if hazardous waste had been precluded in this effort and if costs had also been avoided. To date, no research had explored the use of supply chain management as a source reducer of hazardous waste. Consequently, little was known or understood of …

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The Challenge Of Maintaining Or Replacing An Aging Airlift Fleet: A Cost/Capability Analysis For The Brazilian Air Force Mobility System, Julio C. Messias Sep 1999

The Challenge Of Maintaining Or Replacing An Aging Airlift Fleet: A Cost/Capability Analysis For The Brazilian Air Force Mobility System, Julio C. Messias

Theses and Dissertations

Despite the high Operational and Support costs incurred, the Brazilian Air Force's (BAF) declining budget has led to the establishment of conservative policies that favor short run solutions for a critical BAF airlift problem of operating an aging fleet. As a result of this policy, service life extensions of older airlift aircraft are the preferred solution. Using an equal airlift capacity approach to examine the Brazilian Air Force mobility system, this research performs a cost comparison analysis between two aircraft currently in operation at Brazilian's airlift command: C-130 Hercules and C-95 Bandeirante. To accomplish the cost analysis, this research develops …

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Cost-Benefit Analysis Of Leasing Versus Buying Air Force General Purpose Vehicles In The Continental United States, Robert J. Neal Jr. Sep 1999

Cost-Benefit Analysis Of Leasing Versus Buying Air Force General Purpose Vehicles In The Continental United States, Robert J. Neal Jr.

Theses and Dissertations

Given the increasingly aging vehicle fleet and declining vehicle budget, this research performed a cost-benefit analysis of leasing versus buying various Air Force general purpose vehicles for the entire continental United States (CONUS). In contrast to previous analyses, which have examined the leasing versus buying issue on a base-by-base basis, this analysis studies the issue from an Air Force-wide perspective using a cost-buying model. Costs and benefits are calculated for three purchasing options (Air Force ownership, GSA leasing, and commercial leasing) to determine and recommend the best alternative for the Air Force. Finally, a sensitivity analysis is to test the …

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Before And After: Is Outsourcing A Better Value Than Organic Support: A Case Study Comparing Organic Vs. Contractor Controlled Depot-Level Maintenance Of The F-117, Harry T. Loughran, John Webb Sep 1999

Before And After: Is Outsourcing A Better Value Than Organic Support: A Case Study Comparing Organic Vs. Contractor Controlled Depot-Level Maintenance Of The F-117, Harry T. Loughran, John Webb

Theses and Dissertations

The purpose of this research was to determine whether or not outsourcing of the depot-level maintenance of the F-117 was a better value than maintaining the capability in house. Specifically, this thesis sought to answer three questions: (1) Are the contract performance metrics good indicators of "better value"; (2) Has the decision to outsource F-117 depot-level maintenance provided a better value to the Air Force? (3) if outsourcing F-117 depot maintenance is an equal or better value, do we still want to give up the potential core capability? The research questions were answered through an extensive literature review, triangulation of …

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Logistic Regression Modeling Of Diminishing Manufacturing Sources For Integrated Circuits, Michael J. Gravier Sep 1999

Logistic Regression Modeling Of Diminishing Manufacturing Sources For Integrated Circuits, Michael J. Gravier

Theses and Dissertations

The problem of Diminishing Manufacturing Sources and Material Shortages (DMSMS) afflicts the Air Force and other armed services in a way unforeseen in the past. The costs of DMSMS manifest themselves both in terms of monetary expense and diminished mission readiness. The current environment of limited defense spending and high operations tempo exacerbates this problem. This thesis draws on available data from the electronics integrated circuit industry to attempt to assess whether statistical modeling offers a viable method for predicting the presence of DMSMS. The research identified logistic regression as a powerful tool for analysis of DMSMS and further developed …

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Space-Available Transportation: An Analysis Of The Cost Of Providing 'Free' Travel, Frank J. Long Sep 1999

Space-Available Transportation: An Analysis Of The Cost Of Providing 'Free' Travel, Frank J. Long

Theses and Dissertations

The purpose of this study is to estimate the costs borne by the government for providing space-available travel to eligible uniformed services personnel and their dependents. As the primary provider of the space-available privilege, it is important that the Air Force have an estimate of the burden that the administration of that privilege places on the budget. In January 1993, the Air Force discontinued its 15-year-old practice of charging a fee for space-available travel aboard AMC-owned or controlled aircraft. The fee had been set at $10 in 1978 and was collected to recover a portion of the costs associated with …

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Public-Public Partnerships: Development Of An Alternative Outsourcing Method Decision Model, Michael R. Hackman, Jack L. Nemceff Ii Jul 1999

Public-Public Partnerships: Development Of An Alternative Outsourcing Method Decision Model, Michael R. Hackman, Jack L. Nemceff Ii

Theses and Dissertations

The purpose of this research was to explore the phenomenon of public-public outsourcing partnerships as it may be employed by the DoD from a Federal Government perspective. Current outsourcing methods, guidance, and models are discussed as well as outsourcing related theories. Based upon the literature reviewed, a conceptual public-public outsourcing decision model is presented. A case study of the Brooks AFB initiative is then used to analyze the conceptual model. As a result of our analysis, an analytical public-public outsourcing decision model is developed. The analytical model also depicts the overall process path along which a decision-maker will travel. The …

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