Aviation Commons^™

Prioritization Schemes Of The Air Force Logistics Reparable Pipeline, Brigham K. Briggs

Theses and Dissertations

This study describes the prioritization schemes utilized in the Air Force logistics reparable pipeline. The reparable pipeline is defined and illustrated with flowcharts. A literature review examines previous research conducted on the reparable pipeline, including analytic and conceptual pipeline models, and pipeline management studies. In addition, the topic of prioritization as defined in the production/operations management academic discipline is reviewed. Prioritization schemes of the reparable pipeline are reported in tabular format in addition to descriptions of the various prioritization schemes. Recommendations for pipeline improvement and further research form a basis from which pipeline operation may be improved. p9

Development And Analysis Of A Dual-Role Fighter Deployment Footprint Logistics Planning Equation, Stanley E. Griffis, Joseph D. Martin

Theses and Dissertations

This research investigated the deployment footprint of a developing dual-role fighter, the Joint Strike Fighter (JSF). This thesis documents the creation of a point estimate linear equation and a spreadsheet model for deployment footprint analysis and provides three example applications of the spreadsheet model for the JSF. The development of the model focused towards direct application in the JSF acquisition process, however, this research also serves as a proof of concept for modeling any future weapon system's deployment footprint. The developed spreadsheet model allows the model manipulator to select a baseline weapon system then alter the various components which make …

Integration Of The Distribution And Repair In Variable Environments (Drive) Model Into Micap Policy, Bradley E. Anderson

Theses and Dissertations

The United States Air Force has implemented the Distribution and Repair In Variable Environments (DRIVE) Model to a limited degree for a limited range of items, and policy makers seem unsure as to the proper level of DRIVE utilization. New asset release sequences and policies have been proposed without evidence to support those decisions. The purpose of this study is to explore different levels of DRIVE implementation relating to proposed asset release policies in order to provide some evidence on which policy could best support Air Force weapon systems. A second purpose of this study is to show how the …

Crisis Airlift Management: Effective Scheduling, David C. Penny

Theses and Dissertations

This is a report on the basis, data, findings, and models developed for US Transportation Command and Headquarters Air Mobility Command. Focusing on the dynamic scheduling problem that arises during management of airlift assets into space-constrained airfields during a crisis, this research explains the conditions surrounding this event, discusses several areas of potential cross-functional applications, presents analysis of current performance, and provides several modeling possibilities for schedule efficiency. Past research in the Flow Management Problem (an airline flow control issue) is extensive, but specific applications in crisis airlift are long in coming, primarily due to the complexity of the environment. …

An Analysis Of Air Mobility Express Requirements Operating Within A Lean Logistics Wartime Environment, Jennifer A. Bollinger, Kellie L. Davila-Martinez

Theses and Dissertations

Lean Logistics was developed in response to budget cuts, force reductions, and a new political world order. The primary objective of Lean Logistics is to minimize the total system wide costs of the Air Force organization. Currently, the Air Force is seeking to cut costs by reducing inventories, improving repair processes, and employing faster transportation where possible. The purpose of this thesis is to determine if the Air Mobility Express (AMX) current sizing plan is capable of supporting the retrograde assets generated during the sustainment portion of a war. The Dyna-METRIC version 6.4 simulation program is employed to analyze the …

An Evaluation Of U.S. Air Force Aviation Fuel Consumption Factors To Accurately Predict Aviation Fuel Costs By Aircraft Mission, Design, And Series, Jodi A. Clayton

Theses and Dissertations

The purpose of this thesis was to undertake a systematic, scientific study of the accuracy of Air Force published fuel factors to estimate fuel costs at MAJCOM level by mission, design, and series (MDS) since the implementation of the Fuels Automated Management System (FAMS) under the current environment of decentralized aviation fuel (AVFUEL) funding. The research found that, at MAJCOM level, the use of USAF published AVFUEL factors in estimating out-year costs would have overstated costs in both fiscal year (FY) 1994 and FY 1995 by $2.5 M (FY 1994), by $.25 M (FY 1995), and may potentially understate costs …

Information Requirements Analysis: A Qualitative Characterization Of The Flightline Expediter For The Integrated Maintenance Information System, John C. Gorla Jr.

Theses and Dissertations

The Integrated Maintenance Information System (IMIS) concept design includes the addition of management tools to access IMIS databases and provide communication capabilities between flightline technicians and supervisors. Armstrong Laboratory has developed a portable maintenance aid for technicians, and sponsored this research to investigate the requirements for a computer based tool for the expediter, The basic hardware and software requirements document for IMIS, the System/Segment Specification (SSS), contains task information that closely corresponds to the expediter job description as defined in Air Combat Command Instruction 21-166. This research compiled a list of information requirements for the expediter from the IMIS SSS …

The Value Of The Civil Reserve Air Fleet: How Much Could The Dod Spend On Incentives?, Pamela S. Donovan

Theses and Dissertations

This study evaluated the value of the Civil Reserve Air Fleet (CRAF) program to the DoD and explored the amount that could be spent to remove potential obstacles to participation with aviation insurance and lost market share. In comparing the value of the CRAF and the cost of current incentives, it was determined that up to $1.4 million could be spent on additional incentives, annually. For multiple aircraft losses and liability claims, the Air Force would need to tap into the Defense Business Operating Fund. Therefore, a sensitivity analysis was conducted and found that for low valued aircraft, such as …

An Investigation Of The Relationships Between The Angle Of Mental Rotation Required For Spatial Orientation, Response Times, And Accuracy, Ronald D. Archer

Master's Theses - Daytona Beach

The purpose of this study is to investigate the relationship between the angles of mental rotation when attempting to spatially orientate and the resulting response times and levels of accuracy. By means of a computer program, participants were presented with 64 mental rotational trials. The mental rotational trials consisted of a triangle placed in the center of the screen with a standard stick symbol of an aircraft appearing at various headings and orientations around the triangle. The participants were required to imagine themselves inside the flight deck of the aircraft, and then respond as quickly and accurately as possible to …

Privatization And Its Impact On National Economy With A Close Look At Saudi Arabian Airlines, Abdulatef Halawani

Master's Theses - Daytona Beach

This thesis investigates the possibility of privatizing Saudi Arabian Airlines. The research study has been divided into different sections. The author investigates the privatization programs in airlines and airports.

A number of airlines have been chosen to evaluate the effectiveness of privatization. An overview of Saudia regional performance was conducted. This was done to show the Saudia position among other regional carriers. The last chapter includes a regression analysis and empirical findings.

The major finding of the research study concluded that Saudi Airlines would have been profitable if it had been privatized at the same time as British Airways. The …

The Use Of Electronic Ticketing - A Case Study, Olav C. Unger

Master's Theses - Daytona Beach

This thesis will look at the impact of electronic ticketing travel on the behavior and acceptance trends by airline customers, its effects on revenue generation and cost-cutting opportunities, and the implications in the established transaction flow processes. This form of ticketing is becoming increasingly popular among U.S. and European airlines due to the reduced costs in different areas of passenger and transaction flow handling when compared to the current paper-based ticketing method. While at first glance this new ticketing technology application seems like a move in the right direction for airlines, there is no evidence as to the views from …

Cost Competitiveness Of Airlines: An International Comparison, Tae Oum, Chunyan Yu

Publications

Significant structural, institutional and regulatory changes have occurred in the airline industry since the mid-1980s. These changes have intensified competition in both domestic and international air transport market. As the market becomes more competitive, the ultimate ability of a carrier to survive and prosper depends greatly on its cost competitiveness. This paper measures and compares the unit cost competitiveness of the world's major airlines, using the yearly panel data of 23 major airlines over the 1986-93 period. We focus our analysis on identifying the potential factors which influence the observed unit cost differentials among airlines, including input prices, productivity, network …

A Comparison Of Two Geo-Centric Attitude Indicators As Aids To Unusual Attitude Recovery: Pictorial Vs. Symbolic Displays, Christopher Cohoes

Master's Theses - Daytona Beach

Aircraft require high cognitive quality aircraft attitude information. Evidence will be presented on aircrew decision-making performance on an unusual attitude recovery task using three different types of attitude displays. Results indicated that among a sample of low-flight time student pilots attending Embry-Riddle Aeronautical University, mean reaction times were significantly faster and error rates significantly lower using an outside-in pictorial display than with either an outside-in symbolic display or an attitude gyro. This is attributed to the pictorial display being a more intuitive display by providing a more natural or realistic representation of aircraft orientation than the other two displays. The …

Bulletin - Spring, 1996, Civil Aviation Medical Association

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A seventeen page newsletter of the Civil Aviation Medical Association. The newsletter provided news about civil aviation medicine and information related to the organization.

Airlift System Sensitivity To Perturbed Time-Phased Force Deployment Data, Glenn G. Rousseau

Theses and Dissertations

This research evaluated the effects of perturbations in time phased force deployment data (TPFDD) on airlift system performance. Four characteristics of two TPFDD files were perturbed according to a 2(4-1) fractional factorial experimental design and then fed into the Airlift Flow Module (AFM) simulation. Specifically, small, constrained perturbations were made to the specified locations, the timeline, the amounts of cargo and passengers, and the proportion of outsize and oversize cargo categories. The effects these perturbations had on AFM output were interpreted using factor analysis. The computed factor scores, when plotted against one another, provided sensitivity plots, graphically depicting the sensitivity …

Modeling Diminishing Marginal Returns: An Application To The Aircraft Availability Model, Wayne L. Zorn

Theses and Dissertations

The Aircraft Availability Model (AAM) provides the Air Force with a worldwide peacetime requirement for reparable spare parts. This research models AAM methodology as it relates to the concept of diminishing marginal returns in resource application. Three separate modeling techniques are investigated with the goal of reformulating the AAM as a mathematical programming model that provides a comparable solution and a capable tool for the conduct of sensitivity analysis. The general formulations presented here are continuous non-linear, continuous linear, and piecewise linear discrete/continuous models. Two formulations of the piecewise linear discrete/continuous model are presented. The piecewise linear model based on …

Requirement For C-130 Aircraft In The Intratheater Korean Scenario, Philip B. Oglesby

Theses and Dissertations

In an effort to provide a timely and reasonably accurate methodology for determining C-130 intratheater airlift requirements, this research concentrated on a rough-cut capacity approach using a straight forward linear programming spreadsheet model. To provide more detailed analysis, a more sophisticated linear program was investigated. Specifically, the spreadsheet model calculated the minimum number of C-130s required to carry required cargo, passenger, and aeromedical loads based on user-defined daily requirements. For a given scenario, inputs include the daily requirements and the expected capacity for C-130 aircraft, trucks, and 22-car trains. Included in the capacity inputs are the number of daily cycles …

Bulletin - Winter, 1996, Civil Aviation Medical Association

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A sixteen page newsletter of the Civil Aviation Medical Association. The newsletter provided news about civil aviation medicine and information related to the organization.

A Doctoral Degree In Aviation Science: The Need, Curriculum Content, And Other Considerations As Perceived By Aviation Educators Holding Doctoral Degrees, Barry Robert Beck

Theses and Dissertations

The primary purpose of this study was to determine if there is a need for a doctorate in aviation, what content areas should be included in the doctoral program, and what type of degree should an aviation doctoral program establish, as perceived by doctorally-prepared aviation educators. A two-round Delphi method was used to obtain a consensus from a group of doctorally-prepared experts on the content areas for doctoral programs in nonengineering aviation science. The panel of 100 experts were all doctorally-prepared and were members of the University Aviation Association, or if not members of the UAA, were working in collegiate …

Personality As It Relates To Performance Among Primary Flight Students At Embry-Riddle Aeronautical University, Caroline F. Farmer

Master's Theses - Daytona Beach

The purpose of this study was to evaluate the relationship of primary flight students' performance as it relates to personality. Previous research has provided the basis for the relationship between what an individual accomplishes and personality traits. The individual performance of 30 students were evaluated by two different techniques during an observer flight. One was an evaluation form developed by the researcher and the other, the flight instructor's (P.I.C.) evaluation. The performance data gathered by the researcher was collected in order to provide a secondary set of performance data in case there was no discriminability amongst the flight instructor's evaluation. …

A Case Study Of The Environmental Impacts Of The Beddown Of The C-17 Globemaster Iii At Charleston Afb, Richard H. Houghton Jr.

Theses and Dissertations

Unites States Air Force acquisition environmental planning has changed significantly since the passage of the National Environmental Policy Act in 1969. This research examined the role of environmental planning in weapon system acquisition. It focused on environmental planning performed for the C-17 Globemaster III prior to its beddown at Charleston Air Force Base. The case study of the C- 17 beddown included interviews, archival record reviews, and direct observations at the base. Evidence was collected to determine what environmental impacts occurred during the beddown. An environmental postaudit compared actual impacts with those predicted in environmental planning documentation. Impacts were analyzed …

A Feasibility Study On The Automation Of Domestic Airline Passenger Customer Service Check-In Procedures For Far Part 121 Carriers, Don Michael Trevor Bennett

Master's Theses - Daytona Beach

This study was conducted in an attempt to determine whether airlines can benefit from a fully automated customer service system which will be used by major, Part 121, operators for domestic travel purposes only. The proposed system will be designed to alleviate airport terminals check-in counter congestion and improve customer service personnel effectiveness and efficiency.

Domestic traffic is expected to increase by 50 percent by the year 2004. An Automatic Ticketing and Baggage (ATB) system will allow passengers to process all flight related transactions only once. A self checking-in system allows a passenger to obtain boarding passes and destination bag …

Bulletin - October, 1995, Civil Aviation Medical Association

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A sixteen page newsletter of the Civil Aviation Medical Association. The newsletter provided news about civil aviation medicine and information related to the organization.

Job Satisfaction And Dissatisfaction Factors Of Airport Security Screeners: National Survey Results, Francis X. Goeddeke Jr.

Master's Theses - Daytona Beach

The purpose of this study is to accurately and reliably determine what factors are most important to airport security screeners that effect job satisfaction and excessive employee turnover. Using survey items generating in a previous study, job satisfaction and job dissatisfaction survey scales for this population were developed and validated. A modified version of the Rensis Likert Scale of Organizational Climate was also developed. These surveys, including a demographic questionnaire, were administered to a large nationwide sample of airport security screeners. The results were analyzed using chi-square contingency tables, one-way analysis of variance tests, and the Fisher post-hoc procedure. Post-hoc …

An Investigation Into Aircraft Availability, Michael S. Kapitzke

Theses and Dissertations

The Air Force currently uses an expected value model in the Aircraft Availability Model (AAM) to calculate aircraft availability. However, even with the application of Lean Logistics, the failure-demand rate and the depot repair time are not fixed and the mean value is still used in the model. This research looks at the effect of the magnitude of the variance of the distributions of failure-demand rate and depot repair time. Also, this research evaluates the effect of variable mean failure-demand rates on the variability of aircraft availability. A simulation model was developed which applied the variable failure-demand rates and depot …

A Performance Analysis Of The Air Force War Time Lean Logistics Pipeline, Craig S. Gaddis, David A. Haase

Theses and Dissertations

Lean Logistics is an innovative proposal designed to reduce the costs associated with reparable inventory management. The purpose of this thesis is to determine whether a wartime lean logistics pipeline can maintain acceptable aircraft availability rates in response to induced variations of order and ship time (OST) and flying hours for deployed forces. The Dyna-MEIRIC Version 6.4 simulation program was used to evaluate nine different factor-level combinations. The factors, OST and flying hours were varied at three different levels, low, medium, and high. Analysis of the results was accomplished using a two-factor ANOVA. The authors discovered that while increasing OST …

A Review Of Fighter Aircraft Capability For Smart Bombs, David R. King

Theses and Dissertations

This study examined potential alternatives and decision criteria for inclusion in a Cost and Operational Effectiveness Analysis to recommend an alternative for addressing existing DOD multi-role fighter capability to employ inertially guided smart bombs. A survey of literature and interviews with expens were used to collect required information. An Analytical Hierarchy Process (MIP) decision model was developed for two feasible alternatives and four relevant decision criteriL The two feasible alternatives included either developing the BRU-53 smart bomb rack, or modifying F-15E conformal fuel tanks with additional smart interface wiring. Data on quantitative and qualitative decision criteria were collected to evaluate …

Aligning Demand For Spare Parts With Their Underlying Failure Mode, Steven D. Kephart, Richard C. Roberts

Theses and Dissertations

Current Air Force demand forecasting systems, DO41 and REALM, assume reparable demand is solely flying hour driven. The purpose of this study is to evaluate the relationship between demands, flying hours, and number of sorties at the work unit code level and improve reparable demand forecasting. A three phase methodology is used to analyze the demand, flying hour, and sortie relationship. The first phase uses multiple regression to determine a relationship at various work unit code levels. Multiple regression provides limited correlation between demands, flying hours, and sorties. The second phase uses Poisson regression to evaluate the integer, count nature …

The Effect Of Consolidating Two-Level Reparable Inventories On Aggregate Inventory Requirements And Mission Capability, Glenn R. Barney

Theses and Dissertations

One of the proposals of Lean Logistics is the relocation of many inventory assets to Intermediate Supply Points (ISPs). This research investigates the effect of consolidating Two Level Maintenance designated reparable asset inventories. The effects of interest are the potential reduction in aggregate inventory requirement and resulting savings and the effect of delayed issue of the assets on mission capability. The metric selected to measure the effect on mission capability for this study is the Not Mission Capable-Supply (NMCS) rate. A spreadsheet analysis of world-wide Two-Level Maintenance designated reparable asset demands over the study period is used to determine the …

A Study Of The Structural Limitation Affecting Implementation Of The Government Performance And Results Act In Air Force Materiel Command Logistics, Darwina M. Liguori

Theses and Dissertations

This thesis provides an in-depth discussion of the Government Performance and Results Act (GPRA) of 1993. The GPRA is a new law that mandates strategic management be conducted in all federal government agencies. Soon all federal government agencies will be directed to comply with the requirements of the law and implement strategic management within their organizations. This study selected Air Force Materiel Command Headquarters (AFMC) logistics organizations and subordinate units as the test organization. Interviews were conducted with headquarters AFMC logistics and strategic planning personnel, as well as 88th Logistics Group personnel to evaluate several issues within their organization: (1) …