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Articles 31 - 60 of 138
Full-Text Articles in Management and Operations
United States Air Force Applications Of Unmanned Aerial Systems: Modernizing Airfield Damage Assessment, Samuel M. Clark
United States Air Force Applications Of Unmanned Aerial Systems: Modernizing Airfield Damage Assessment, Samuel M. Clark
Theses and Dissertations
Modernizing airfield damage assessment has long been a priority mission at the Air Force Civil Engineer Center (AFCEC). Previously, AFCEC has made advances to expedite unexploded ordnance (UXO) neutralization and pavement repair. Missing from these initiatives is the initial assessment component. This thesis expands the idea of using Small Unmanned Aerial Systems (SUAS), applies it to the Air Force mission, and provides SUAS vehicle configuration and sensor recommendations. In this study, 25 civil engineer officers reviewed airfield imagery gathered using two small air vehicles. For the first review, participants attempted to identify UXOs and foreign object debris (FOD) in a …
Flightline Heroics And The Façade Of A Healthy Common Support Equipment Fleet, Benjamin D. Bobic
Flightline Heroics And The Façade Of A Healthy Common Support Equipment Fleet, Benjamin D. Bobic
Theses and Dissertations
Access to serviceable support equipment enables aircraft maintenance crews the ability to efficiently keep assigned aircraft safe and mission capable. Current Air Force policy does not require formal management and enterprise fleet health reporting of serialized support equipment. As such, articulating funding requirements to replace equipment has been a challenge for equipment managers. To better articulate support equipment requirements, equipment managers need quantifiable support equipment data. A previous study examined the relationship between aircraft availability and support equipment availability. While finding no significant correlation, the author identifies the practices of "Frankensteining" and "Beg-Borrow-Steal" as possible reasons for the absence of …
An Analysis Of Aircraft Operating And Support Cost Element Structures, Garrett B. O'Hanlon
An Analysis Of Aircraft Operating And Support Cost Element Structures, Garrett B. O'Hanlon
Theses and Dissertations
As the cost of DoD Weapon Systems continue to increase, the ability to more accurately predict the Operating and Support (O&S) costs for the various weapon systems has become more vital for long run affordability. The investigation into the O&S arena has been overshadowed by the research and development (R&D) and acquisition fields. This research focuses on the O&S portion of the total life cycle costs, specifically the OSD-CAPE Cost Element Structure (CES) elements and sub-elements. The research investigates seven categories of 52 aircrafts and their cost expenditures within the CES from the years 1996-2016. The first portion of the …
Common Support Equipment And Its Impact On Aircraft Availability, Jason M. Leighton
Common Support Equipment And Its Impact On Aircraft Availability, Jason M. Leighton
Theses and Dissertations
The ability of military aircraft maintenance personnel to prepare aircraft for flight depends not only on the technical ability and availability of replacement parts, but also on access to serviceable support equipment. While the general relationship between support equipment failures and aircraft availability is understood, the struggle to quantify that relationship makes targeted support equipment replacement or quantity authorization increases difficult. Tight budgets and aging equipment further complicate the task of keeping serviceable support equipment assets in the hands of maintainers. We identify key pieces of support equipment which may affect aircraft availability and other metrics and investigate the associated …
Simulation Of Aircraft Sortie Generation Under An Autonomic Logistics System, Gunduz Bingol
Simulation Of Aircraft Sortie Generation Under An Autonomic Logistics System, Gunduz Bingol
Theses and Dissertations
Parallel to the developments in diagnostic and prognostic technology, autonomic logistics systems (ALS) have been a potential improvement for the aircraft sortie generation process. Currently, Lockheed Martin and the Joint Program Office are developing a new autonomic logistics system for the multibillion F-35 Lightning Joint Strike Fighter project, which is named the Autonomic Logistics Information System (ALIS). Generally, researchers make an analogy between the ALS and the human bodys autonomic nervous system since both of them monitor, control, and adjust autonomic responses to external stimuli. Based on this perspective, ALS aims to switch the Air Force logistics mentality from a …
Applying Lean To The Ac-130 Maintenance Process For The Royal Saudi Air Force, Fisal A. Alzahrani
Applying Lean To The Ac-130 Maintenance Process For The Royal Saudi Air Force, Fisal A. Alzahrani
Theses and Dissertations
The ideas expressed in this research come from the researchers experiences working in the AC-130 maintenance squadron in the Royal Saudi Air Force. The AC-130 maintenance process is not currently being used as effectively as it could be to make AC-130 fully mission capable. That can be done by improving communication, reducing distances needed to move or transport anything during the maintenance process and by efficient use of the available qualified workforces, tools and equipment. Consideration is given to applying an existing management technique to the Royal Saudi Air Forces AC-130 Maintenance Squadrons. The selected technique is the Lean management …
Air Mobility Future: Evolving Command And Control Relationships In The Information Age, Ian M. Slazinik
Air Mobility Future: Evolving Command And Control Relationships In The Information Age, Ian M. Slazinik
Theses and Dissertations
This research paper analyzes information flow through theater Air Mobility Command and Control (C2) organizations. The purpose is to uncover guidelines going forward to adapt organizational structure and processes to increase the speed and reach of information. These guidelines could assist with improving organizational agility and decision making while adapting to future trends in the broader C2 enterprise. To collect data, the researcher conducted interviews with seventeen C2 experts with experience at various levels of C2, from worldwide to theater Air Mobility C2 organizations, from Air Mobility C2 leadership, to experts in non-mobility C2 divisions. Interview subjects shared their perceptions …
Effects Of Automation On Aircrew Workload And Situation Awareness In Tactical Airlift Missions, David R. Meyer
Effects Of Automation On Aircrew Workload And Situation Awareness In Tactical Airlift Missions, David R. Meyer
Theses and Dissertations
In tactical aviation, decision superiority brought upon by high situation awareness remains the arbiter of combat effectiveness. The advancement of sophisticated avionics and highly automated cockpits has allowed for the reduction of aircrew size, and in certain platforms, removal of the crew from the aircraft entirely. However, these developments have not reduced the complex and dynamic interaction between situation awareness and crew workload. While many predictive and experimental methods of evaluating workload exist, situation awareness can only be measured by conducting trials with human operators in a functional prototype. This thesis proposes an innovative methodology to predicatively determine situation awareness …
Review Of Aviation Research: A Content Analysis Of Articles Published In The Collegiate Aviation Review, 2007–2012, Safak Aktemur
Review Of Aviation Research: A Content Analysis Of Articles Published In The Collegiate Aviation Review, 2007–2012, Safak Aktemur
Theses and Dissertations
The purpose of the study was to conduct a content analysis of the methodological quality of articles published in the Collegiate Aviation Review (CAR)” a refereed journal of the University Aviation Alliance (UAA)”to determine if actual practices of aviation researchers were consistent with commonly recommended research methods and procedures. The accessible population consisted of the 76 articles published in CAR between 2007 and 2012 (Volumes 25“30). The sample consisted of N = 69 articles and excluded literature reviews, meta-analyses, studies that described the development or validation of an instrument, philosophical inquiries, position papers, or historical studies. The analysis focused on …
Factors Leading To A Satisfying Career In Airport Management: Evidence From Airport Managers In Norway, Eirik Holdø
Factors Leading To A Satisfying Career In Airport Management: Evidence From Airport Managers In Norway, Eirik Holdø
Theses and Dissertations
The purpose of this study was to identify factors that influence a person to choose airport manager as a professional career and how these factors relate to the level of satisfaction the person experiences with this career choice. By using a correlational methodology with an explanatory design, this study examined the influence of early aviation interests, demographics, health factors, formal education, and other aviation experiences on Norwegian airport managers’ career choice and its relationship to their level of career satisfaction. A sample of N = 39 airport managers at Norwegian commercial service airports were surveyed. To assess the relationship, a …
Applying Lean To The F-15 Maintenance Process For The Royal Saudi Air Force, Mohammad Alamri
Applying Lean To The F-15 Maintenance Process For The Royal Saudi Air Force, Mohammad Alamri
Theses and Dissertations
The thesis was about applying lean to the F-15 maintenance process in Royal Saudi Air Force. The researcher collected the data by using several questionnaires. Researcher used external lean expert recommendation to avoid bias, the F-15 maintenance process improved theoretically.
Development Of Availability And Sustainability Spares Optimization Models For Aircraft Reparables, Edmund K. W. Pek
Development Of Availability And Sustainability Spares Optimization Models For Aircraft Reparables, Edmund K. W. Pek
Theses and Dissertations
The Republic of Singapore Air Force (RSAF) conducts Logistics Support Analysis (LSA) studies in various engineering and logistics efforts on the myriad of weapon systems. In these studies, inventory spares provisioning, availability and sustainability analyses are key focus areas to ensure asset sustenance. In particular, OPUS10, a commercial-off-the-shelf software, is extensively used to conduct reparable spares optimization in acquisition programs. However, it is limited in its ability to conduct availability and sustainability analyses of time-varying operational demands, crucial in Operations & Support (O&S) and contingency planning. As the RSAF seeks force structure expansion to include more sophisticated weapon systems, the …
Improving Knowledge Of C-130 Aircraft Condition: A High Velocity Maintenance Case Study, Marcus R. Mcwilliams
Improving Knowledge Of C-130 Aircraft Condition: A High Velocity Maintenance Case Study, Marcus R. Mcwilliams
Theses and Dissertations
High Velocity Maintenance (HVM) seems poised to revolutionize the way the Air Force schedules and performs depot-level maintenance on its aircraft. The four tenets of HVM -- Known Condition of the Aircraft, Supportability, Daily Standard Work, and High Burn Rate -- provide the basis for the Air Force's Air Logistics Centers (ALCs) to improve the quality of planning and scheduling that goes into each aircraft's depot maintenance visit. These tenets have been implemented at Warner Robins ALC as part of the C-130 depot maintenance process. While HVM is in active implementation there, much remains to be documented on how the …
Tanker Fuel Consolidation: Effects Of Higher Fidelity Modeling On A Resilient Plan, Jason A. Larimore
Tanker Fuel Consolidation: Effects Of Higher Fidelity Modeling On A Resilient Plan, Jason A. Larimore
Theses and Dissertations
The U.S. Air Force (USAF) has selected the KC-46 to begin replacing the aged KC-135 fleet. One of the major differences between the KC-46 and the KC-135 is the KC-46's ability to be refueled. This allows for tanker fuel consolidation, or the refueling of one tanker by another. The effects of this capability on the efficiency of tanker operations must be quantified and included in determining an appropriate substitution ratio between the two aircraft. This ratio will be used to plan the retirement of KC-135s as the KC-46 enters operational fielding. This study utilizes simulation to determine the efficiencies gained …
Maintenance Operations Degradation Of Airfield Pavement Markings, John C. Jaszkowiak
Maintenance Operations Degradation Of Airfield Pavement Markings, John C. Jaszkowiak
Theses and Dissertations
Pavement markings are an essential element in the navigational aids subsystem for any airfield. Most airfields still use waterborne paint as the primary marking material, although there are other materials in use on roadways that airfield managers could use to save time and money. An airfield experiences a host of maintenance operations that cause degradation of the pavement markings. Of particular concern are rubber removal operations, sweeping operations, and snowplowing operations. This research focuses on chemical rubber removal operations and sweeping operations. The study evaluates waterborne paint markings and thermoplastic marking strips to determine if these marking materials perform differently …
Composite Aircraft Life Cycle Cost Estimating Model, Daniel B. Lambert
Composite Aircraft Life Cycle Cost Estimating Model, Daniel B. Lambert
Theses and Dissertations
Composite materials are beginning to comprise a greater percentage of structural materials used throughout aircraft production. The increased usage of composites has led individuals within the Air Force community to revisit aircraft life cycle cost, LCC, models. A series of affordability initiatives has culminated in significant evidence over the last decade to better quantify the impact of primarily composite structures in aircraft. The Advanced Composite Cargo Aircraft, ACCA, a research effort sponsored by the Air Force Research Lab, attempted to determine the impact of part size and large scale composite components on LCC for cargo aircraft. This research evaluates the …
Simulation Modeling And Analysis Of Tnmcs For The B-1 Strategic Bomber, Carl R. Parson
Simulation Modeling And Analysis Of Tnmcs For The B-1 Strategic Bomber, Carl R. Parson
Theses and Dissertations
Simulation provides a method of modeling complex systems which would otherwise be impractical for quantitative experimentation. While other analytic techniques have been used to explore Total Non-Mission Capable [due to] Supply (TNMCS) rates, simulation offers a novel approach to discovering what aspects of the supply chain impact this metric. This research develops a discrete event simulation to investigate factors which affect TNMCS rates for the B-1B by modeling the core processes within the Air Force (AF) supply chain. A notional fleet of 16 aircraft at a single air base (Ellsworth AFB, SD) is modeled based on historical supply and maintenance …
An Exploration Of The Effects Of Maintenance Manning On Combat Mission Readiness Utilizing Agent Based Modeling, Adam S. Mackenzie
An Exploration Of The Effects Of Maintenance Manning On Combat Mission Readiness Utilizing Agent Based Modeling, Adam S. Mackenzie
Theses and Dissertations
Agent based models have been shown to be powerful tools in describing processes and systems centered on individual behaviors and local interactions (i.e. “bottom-up”) between specific entities. Current application areas tend to be focused within the business and social science arenas, although their usefulness has been demonstrated in the modeling of various chemistry and physics-based systems. Conversely, many highly process-oriented systems, such as manufacturing environments, tend to be modeled via “top-down” methods, including discrete or continuous event simulations among others. As a result, potentially critical attributes of the entities or resources modeled with these methods (spatial properties, “learning curve” or …
Simulation Analysis Of High Velocity Maintenance For The B-1b, Anson R. Park
Simulation Analysis Of High Velocity Maintenance For The B-1b, Anson R. Park
Theses and Dissertations
This thesis explores the impact that High Velocity Maintenance (HVM) will have on aircraft availability rates for the B-1B by examining the proposed changes to the field maintenance and supply processes for the two B-1B squadrons of the 28th Bombardment Wing located at Ellsworth AFB, SD. There is a significant restructuring of depot level maintenance planned with the implementation of HVM, and the impact that this will have on base-level operations is important to determine, for it will provide insight as to whether or not HVM will be a feasible program with a high probability of successfully improving B-1B aircraft …
An Advanced Tabu Search Approach To Solving The Mixed Payload Airlift Load Planning Problem, Robert Larry Nance
An Advanced Tabu Search Approach To Solving The Mixed Payload Airlift Load Planning Problem, Robert Larry Nance
Theses and Dissertations
This paper presents a new tabu search based two-dimensional bin packing algorithm which produces high quality solutions to the Mixed Payload Airlift Load Planning (MPALP) problem using C-5 and C-17 aircraft. This algorithm, called Mixed Payload Airlift Load Planning Tabu Search (MPALPTS), surpasses previous research conducted in this area because, in addition to pure pallet cargo loads, MPALPTS can accommodate rolling stock cargo (i.e. tanks, trucks, HMMMVs, etc.) while still maintaining aircraft feasibility with respect to aircraft center of balance, mandatory cargo separations, aircraft floor structural limitations, etc. Furthermore, while this research is currently restricted to C-5 and C-17 aircraft, …
Assessing Structural Health Monitoring Alternatives Utilizing A Value-Focused Thinking Model, Margaret A. Barker, Fatih S. Gurbuz, Jeremy A. Schroeder
Assessing Structural Health Monitoring Alternatives Utilizing A Value-Focused Thinking Model, Margaret A. Barker, Fatih S. Gurbuz, Jeremy A. Schroeder
Theses and Dissertations
Current Air Force operations are undergoing significant changes necessitated by increasing fiscal constraints, increasing aircraft age, and recent drawdown in personnel to perform maintenance, repair, and other necessary functions. In order to deal with these challenges, the Air Force must effectively improve current operations. This paper explores potential structural health monitoring (SHM) solutions to some of the challenges facing aircraft maintenance and repair operations. As with any problem, a variety of solutions exist and this paper explores the potential solutions and limitations of various options. Aircraft SHM is an intriguing concept with potential capability to revolutionize current Air Force maintenance …
Simulated Multi-Echelon Readiness-Based Inventory Leveling With Lateral Resupply, Todd C. Burnworth
Simulated Multi-Echelon Readiness-Based Inventory Leveling With Lateral Resupply, Todd C. Burnworth
Theses and Dissertations
For the past fifty years, U.S. Air Force reparable inventory has been allocated based on an analytic model developed by Dr. Craig C. Sherbrooke. Although versions of his model can be implemented easily with the help of a computer, the analytic approach fundamentally lacks the flexibility to address numerous logistics issues. This body of research will offer a novel alternative approach that will enable researchers to investigate currently unsolved logistics problems such as quantifying the benefits of lateral resupply.
Robust Aircraft Squadron Scheduling In The Face Of Absenteeism, Osman Bahadir Gokcen
Robust Aircraft Squadron Scheduling In The Face Of Absenteeism, Osman Bahadir Gokcen
Theses and Dissertations
Air Force fighter aircraft squadrons the world over share a unique problem. Each requires complex training schedules coupling aircraft to pilots, the duo to missions and airspaces, and then the entire combination to a feasible time slot. Creating daily and weekly flight schedules that include shifts around the clock every day of the year with a set number of pilots is a time consuming job for manual schedulers within a squadron. Complicating matters is absenteeism. If one or more pilots are unable to perform their previously assigned tasks, due to sickness, aircraft failure, or reassignment, those tasks must be performed …
Air Mobility Command's En Route Support Infrastructure: A Construct Of Aircraft Type And Geographic Location Utilized To Assess En Route Aircraft Logistics Support, Robert D. Polomsky
Air Mobility Command's En Route Support Infrastructure: A Construct Of Aircraft Type And Geographic Location Utilized To Assess En Route Aircraft Logistics Support, Robert D. Polomsky
Theses and Dissertations
The ability of the United States Armed Forces to maintain a global presence and rapidly project military power anywhere in the world are key factors in preserving our freedom. To accomplish the demanding task of global reach support, Air Mobility Command employs an en route support infrastructure. These en route locations provide varying levels of command, control, and communications (C3), logistics support, and aerial port functions. The goal of the en route is to minimize delays for AMC mission aircraft. However, these en route locations comprise a small percentage of the locations that AMC aircraft visit. Given the critical demand …
Forecasting Demand For Civilian Pilots: A Cost Savings Approach To Managing Air Force Pilot Resources, Justin W. Collup
Forecasting Demand For Civilian Pilots: A Cost Savings Approach To Managing Air Force Pilot Resources, Justin W. Collup
Theses and Dissertations
The purpose of this research was to create a model that could potentially predict demand for military trained pilots in the airline industry. Specifically, this thesis sought to answer the research question addressing whether or not military trained pilots are currently more in demand or less in demand. The research questions were answered through a comprehensive literature review, collection of data relevant to airline industry growth, and regression analysis. The Aviation Continuation Pay Bonus, offered to all eligible Air Force aviators, has risen from $12,000/year to its current value of $25,000/year. With shrinking budgets, and ever increasing costs of war, …
Forecasting The Kc-135 Cost Per Flying Hour: A Panel Data Analysis, Michael T. Bryant
Forecasting The Kc-135 Cost Per Flying Hour: A Panel Data Analysis, Michael T. Bryant
Theses and Dissertations
This thesis developed models to forecast the KC-135R monthly Consumables (CONS) and Depot Level Reparable (DLR) Cost per Flying Hour (CPFH) for each U.S. Air Force service component. Using data for each operating location from FY1998 to FY2004, the models were constructed using panel data analysis, a form of regression that adds a cross-sectional and time-series dimension. In addition to including factors previously identified as prime contributors to CPFH, the models added new elements that may influence maintenance costs and be of interest to policymakers. These elements included mission capable rates, airframe operating hours, and climatology factors. An interaction variable …
Price Vs. Performance: The Value Of Next Generation Fighter Aircraft, John M. Stelly
Price Vs. Performance: The Value Of Next Generation Fighter Aircraft, John M. Stelly
Theses and Dissertations
The United States Department of Defense (DoD) is currently recapitalizing its aging fighter aircraft inventory with the F-22A and F-35. While the DoD may consider cost and performance issues, it does not use a quantitative model that effectively measures the tradeoffs between the two. This thesis constructs a hedonic model of the fighter aircraft market to measure the implicit price on fighter performance characteristics and specifically applies it to next-generation aircraft. Data from 50 aircraft from 1949-present were used to construct two models – one based on procurement costs and one based on research, design, test, and evaluation (RDT&E) costs. …
Determining Logistics Ground Support Manpower Requirements For A Reusable Military Launch Vehicle, Sydney C. Michalski
Determining Logistics Ground Support Manpower Requirements For A Reusable Military Launch Vehicle, Sydney C. Michalski
Theses and Dissertations
Successful space-based technologies like satellite imagery and GPS have increased military demand for a rapid-response launch capability. AF Space Command's Operationally Responsive Spacelift program was developed to ensure that the AF has the capability to launch a payload into orbit within hours of a tasking notification, and requires development of a new space launch vehicle. The Reusable Military Launch Vehicle (RMLV) is currently in the design phase. The AF Research Laboratory sponsored development of the MILEPOST simulation model in order to assess the turnaround time, and thus responsiveness, of various design alternatives. The focus of this thesis is to improve …
Factors And Interactions That Affect Air Force C-17 Aircraft Mission Capable Rates, Scotty A. Pendley
Factors And Interactions That Affect Air Force C-17 Aircraft Mission Capable Rates, Scotty A. Pendley
Theses and Dissertations
Given the high demand for mission capable airlift aircraft and considering increasing budget pressures, Air Mobility Command decision makers need a better understanding of mission capable (MC) rate-related factors and their interactions for mobility aircraft. This is needed to comprehend how issues such as airlift funding, current and future force reductions, and manning and experience levels may impact future MC rates for air mobility assets. Existing tools do not incorporate several key variables that the literature suggests are related to MC rates. Using a longitudinal approach, this thesis combines C-17 aircraft data with a structural equations modeling approach to evaluate …
Implementing Reliability-Centered Maintenance Analysis In A Revised Preventive Maintenance Program For The F-15, Michael H. Martin
Implementing Reliability-Centered Maintenance Analysis In A Revised Preventive Maintenance Program For The F-15, Michael H. Martin
Theses and Dissertations
Reliability-centered maintenance is an approach to analyzing how and when equipment fails in order to maintain a desired level of performance or functionality. It employs the use of failure modes, effects and criticality analysis to rank order potential failures, and combines this rank order with the use of a prescribed decision logic process to determine what preventive maintenance tasks should be performed and when. Reliability-centered maintenance analysis has been used by the United States Navy, the United States Coast Guard, and commercial airlines to develop and update preventive maintenance programs for their aircraft for many years. While the United States …