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Articles 2221 - 2250 of 2846

Full-Text Articles in Aviation

Use Of Variable Incidence Angle For Glide Slope Control Of Autonomous Parafoils, Nathan Slegers, Eric Beyer, Mark Costello Jan 2008

Use Of Variable Incidence Angle For Glide Slope Control Of Autonomous Parafoils, Nathan Slegers, Eric Beyer, Mark Costello

Faculty Publications - Biomedical, Mechanical, and Civil Engineering

Strictly speaking, most autonomous parafoil and payload systems possess only lateral control, achieved by right and left parafoil brake deflection. An innovative technique to achieve direct longitudinal control through incidence angle changes is reported. Addition of this extra control channel requires simple rigging changes and an additional servoactuator. The ability of incidence angle to alter the glide slope of a parafoil and payload aircraft is demonstrated through a flight-test program with a microparafoil system. Results from the flight-test program are synthesized and integrated into a six degree-of-freedom simulation. The simulation model is subsequently used to assess the utility of glide …

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Entrepreneurial Spirit In Government Managed Enterprises: Evidence From The U.S. General Aviation Airports, Vitaly S. Guzhva, Massoud Bazargan, David A. Byers Jan 2008

Entrepreneurial Spirit In Government Managed Enterprises: Evidence From The U.S. General Aviation Airports, Vitaly S. Guzhva, Massoud Bazargan, David A. Byers

Management, Marketing and Operations - Daytona Beach

While a number of studies introduce entrepreneurship in the public sector, there is still a need for empirical research in this field. We use a survey of U.S. general aviation airport managers to investigate the benefits of entrepreneurial spirit in public sector management. The results of logistic regressions suggest that the airport managers’ beliefs in importance of self-sustainability significantly improve the likelihood of general aviation airports to be self-sustaining. On the other hand, the airport specific characteristics, such as a favorable location, county population, and others are not statistically significant in achieving self-sustainability. Our findings support the literature that argue …

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Rolls Royce Declares Bankruptcy, John Alfred Heitmann Jan 2008

Rolls Royce Declares Bankruptcy, John Alfred Heitmann

History Faculty Publications

Despite more than sixty years of engineering excellence, Rolls-Royce failed in its attempt to design and manufacture a radically new jet engine to meet contractual obligations with the Lockheed Corp. Consequently, both British and U.S. governments had to step in to avoid an unprecedented economic catastrophe.

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Dependable And Certifiable Real-World Systems – Issue Of Software Engineering Education, Andrew J. Kornecki Jan 2008

Dependable And Certifiable Real-World Systems – Issue Of Software Engineering Education, Andrew J. Kornecki

Department of Electrical Engineering and Computer Science - Daytona Beach

Embedded software and dedicated hardware are vital elements of the modern world, from personal electronics to transportation, from communication to aerospace, from military to gaming, from medical systems to banking. Combinations of even minor hardware or software defects in a complex system may lead to violation of safety with or even without evident system failure, a major problem that the computing profession faces is the lack of a universal approach to unite the dissimilar viewpoints presented by computer science, with its discrete and mathematical underpinnings, and by computer engineering, which focuses on building real systems and considering spatial and material …

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Determinants Of Financial Health Of Us General Aviation Airports, Vitaly S. Guzhva, Massoud Bazargan, David A. Byers Jan 2008

Determinants Of Financial Health Of Us General Aviation Airports, Vitaly S. Guzhva, Massoud Bazargan, David A. Byers

Management, Marketing and Operations - Daytona Beach

This survey-based study investigates the current financial environment of US general aviation airports. Due to a dearth of data and research on the financial performance of general aviation airports, the paper provides vital information regarding the critical needs and major revenue sources of such airports.The findings suggest that general aviation airports can be self-sustaining regardless of their location, runway length and other airport-specific characteristics.The attitudes of the airport manager towards the importance of financial self-sustainability, positive relationships with local communities, and utilisation of non-traditional and non-aviation revenue sources are found to be critical for the financial health of general aviation …

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A Process Plan For Consensus Building In The Evaluation Of Nsgc & Epscor Native American Outreach Program, Jocelyn S. Nickerson, Brent D. Bowen, Henry R. Lehrer Jan 2008

A Process Plan For Consensus Building In The Evaluation Of Nsgc & Epscor Native American Outreach Program, Jocelyn S. Nickerson, Brent D. Bowen, Henry R. Lehrer

Publications

The NASA Nebraska Space Grant (NSGC) & EPSCoR Programs at the University of Nebraska at Omaha have embarked on a unique educational journey known as the Nebraska Native American Outreach program (NNAOP). The NNAOP’s main objective is to encourage and motivate Native American students to be more competitive in mathematics and science. This program has allowed for a variety of educational and public outreach activities to take place. However, in order to continually provide effective support to Nebraska’s Native American community, NSGC & EPSCoR sought an evaluation technique for the NNAOP. To execute such an evaluation, NSGC organized the first …

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Classification And Analysis Of Errors Reported In Aircraft Maintenance Manuals, Bonnie Lida Rogers, Christopher J. Hamblin, Alex Chaparro Jan 2008

Classification And Analysis Of Errors Reported In Aircraft Maintenance Manuals, Bonnie Lida Rogers, Christopher J. Hamblin, Alex Chaparro

Publications

Previous research has identified maintenance information as one of the primary causal factors of maintenance error. Incorrect maintenance information has also been cited as a contributing factor in a number of recent aircraft mishaps. To date no one has studied the types of errors found in aircraft maintenance manuals published by manufacturers. The purpose of this research is to analyze Publication Change Requests (PCRs) to document the most frequently reported types of errors found in aircraft maintenance manual, to identify how errors vary across Air Transport Association (ATA) chapters, and identify the corrective actions required to address the cited problem. …

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Moral Development In Pilot Populations, Erica Anne Diels Dec 2007

Moral Development In Pilot Populations, Erica Anne Diels

Doctoral Dissertations and Master's Theses

Ethical issues are becoming more commonplace in society today and while most industries are taking steps to improve poor ethical decisions through ethics education, aviation is lagging behind in both understanding of ethical issues inherent to the industry and ethics education. In this study three groups of pilots (students, instructors, and faculty) at Embry-Riddle Aeronautical University are examined in an effort to determine moral development level in terms of P score on the Defining Issues Test 2 (DIT2) and two domain specific additional questions. It was hypothesized that differences would be found between the groups and that the moral development …

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Flight Physician - November, 2007, Civil Aviation Medical Association Nov 2007

Flight Physician - November, 2007, Civil Aviation Medical Association

Browse all Civil Aviation Medical Association Newsletters

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

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Presenting Science And Engineering Careers In A Unique And Appealing Way., Nihad E. Daidzic, Vojin R. Nikolic Sep 2007

Presenting Science And Engineering Careers In A Unique And Appealing Way., Nihad E. Daidzic, Vojin R. Nikolic

Aviation Department Publications

An original summer camp activity in the areas of aerospace/aeronautical engineering and aviation has been developed. A pilot version of the program was completed successfully in June 2007 at Minnesota State University, Mankato. The main objective of the program was to increase the awareness and interest among high school students for science and engineering careers. Through a series of short lectures and extensive hands-on demonstrations the attending students have been familiarized with the fundamental concepts and relationships of science and engineering in general, and of aerospace engineering and aviation, in particular. Two major team projects have been completed and tested. …

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Flight Physician - August, 2007, Civil Aviation Medical Association Aug 2007

Flight Physician - August, 2007, Civil Aviation Medical Association

Browse all Civil Aviation Medical Association Newsletters

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

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The Effects Of Foreign Accent And Language On Reaction Time And Accuracy In An Air Traffic Control Task, Rosabelle Suarez Jul 2007

The Effects Of Foreign Accent And Language On Reaction Time And Accuracy In An Air Traffic Control Task, Rosabelle Suarez

Master's Theses - Daytona Beach

The present study examines the effect of foreign accent interference with the ability to execute commands presented in speech format. The objective of this study was to demonstrate that a foreign accent influences performance. Participants were between 18 and 40 years of age. Half of the participants were native speakers of Spanish who began learning English as a second language via the classroom setting. The other half were native English-speaking with little or no exposure to the Spanish language. The experimental design was similar to an aviation scenario where participants listened to simulated ATC procedural commands and execute them on …

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Quantifying The Cognitive, Symptomatic And Neuroendocrine Impact Of The Coriolis Illusion; A Countermeasure For Motion Sickness, Catherine Grandizio Jul 2007

Quantifying The Cognitive, Symptomatic And Neuroendocrine Impact Of The Coriolis Illusion; A Countermeasure For Motion Sickness, Catherine Grandizio

Master's Theses - Daytona Beach

When pilots are unable to accurately perceive the position and motion of their bodies, they are spatially disoriented. Spatial disorientation is often induced by aviation illusions, and its consequences include dizziness, confusion, nausea and fatigue. The present research evaluated the severity of cognitive, neuroendocrine and subjective symptoms of the Coriolis illusion, induced by a spatial disorientation flight training device. Also, the research examined the effectiveness of a mild, ground-based countermeasure, similar to the Coriolis illusion, in reducing the occurrence and severity of symptoms. In the early stages of data analysis, there appeared to be a significant impact of the Coriolis …

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Flight Physician - June, 2007, Civil Aviation Medical Association Jun 2007

Flight Physician - June, 2007, Civil Aviation Medical Association

Browse all Civil Aviation Medical Association Newsletters

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

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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 Jun 2007

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 …

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Voluntary And Confidential Reporting Systems As A Means Of Reducing The Accident Rate In Shadow 200 Flight Operations, William Lawrence Jagnow May 2007

Voluntary And Confidential Reporting Systems As A Means Of Reducing The Accident Rate In Shadow 200 Flight Operations, William Lawrence Jagnow

Master's Theses - Daytona Beach

Although effective, the United States Army's Shadow 200 Unmanned Aerial Vehicle has suffered an unacceptably high accident rate. Errors committed by operators have significantly contributed to this accident rate. The voluntary and confidential Aviation Safety Reporting System and Aviation Safety Action Program have been successful in identifying and addressing errors committed by air carrier pilots. This study has explored the implementation of voluntary and confidential reporting systems in Shadow 200 flight operations. Mixed methods research combined quantitative survey data and qualitative interview data as a means of determining attitudes relevant to the implementation of such systems. Identified deficiencies included: (a) …

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A Nationwide Comparison Of Aviation Programs, D. Jason Mcconnell May 2007

A Nationwide Comparison Of Aviation Programs, D. Jason Mcconnell

Undergraduate Honors Capstone Projects

Students considering a college education have many different priorities in mind. When considering a career in aviation after graduation, it brings a whole new set of priorities into the picture. When I was searching for a university degree in aviation I had two major concerns: location and quality of the flight school. Cost was also on my list of concerns but more as a restriction than an option. In other words, I was willing to pay more for the schooling provided it did not get so excessive that I could no longer afford to go. Utah State was among three …

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The Effect Of Display Design On Pilot Performance In Controlled Flight Into Terrain Scenarios, Jeremy Charles Smith May 2007

The Effect Of Display Design On Pilot Performance In Controlled Flight Into Terrain Scenarios, Jeremy Charles Smith

Doctoral Dissertations and Master's Theses

New technologies are being developed to prevent the continuing problem of Controlled Flight into Terrain (CFIT) accidents. One such technology, the Synthetic Vision System, seems to hold the solution. While it is readily adapted to the commercial aviation instrument environment, it may not be intuitive enough for the General Aviation private pilot with minimal instrument training. This experiment attempted to examine how pilots of every experience level use and interpret the depiction of synthetic terrain to recognize and avoid potential CFIT situations. The outcome of CFIT was measured against pilot experience and display condition.

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Forecasting Demand For Civilian Pilots: A Cost Savings Approach To Managing Air Force Pilot Resources, Justin W. Collup Mar 2007

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, …

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Forecasting The Kc-135 Cost Per Flying Hour: A Panel Data Analysis, Michael T. Bryant Mar 2007

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 …

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Price Vs. Performance: The Value Of Next Generation Fighter Aircraft, John M. Stelly Mar 2007

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. …

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Flight Physician - March, 2007, Civil Aviation Medical Association Mar 2007

Flight Physician - March, 2007, Civil Aviation Medical Association

Browse all Civil Aviation Medical Association Newsletters

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

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Determining Logistics Ground Support Manpower Requirements For A Reusable Military Launch Vehicle, Sydney C. Michalski Mar 2007

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 …

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First Flights: 100 Years Of Powered Flight, University Of South Alabama Jan 2007

First Flights: 100 Years Of Powered Flight, University Of South Alabama

Aeronautics

Bibliography and photographs of a display of government documents from the University of South Alabama.

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The Places We Will Go, Minnesota State University, Mankato Jan 2007

The Places We Will Go, Minnesota State University, Mankato

Aeronautics

Bibliography and photographs of a display of government documents from Minnesota State University, Mankato.

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Use Of Dynamic Incidence Angle For Glide Slope Control Of Autonomous Parafoils, Nathan Slegers, Eric Beyer, Mark Costello Jan 2007

Use Of Dynamic Incidence Angle For Glide Slope Control Of Autonomous Parafoils, Nathan Slegers, Eric Beyer, Mark Costello

Faculty Publications - Biomedical, Mechanical, and Civil Engineering

Strickly speaking, most autonomous parafoil and payload aircraft possess only lateral control, achieved by right and left parafoil brake deflection. An innovative new technique to achieve direct longitudinal control through dynamic incidence angle changes is reported. Addition of this extra control channel requires simple rigging changes and an additional servo actuator. The ability of dynamic incidence angle to alter the glide slope of a parafoil and payload aircraft is demonstrated through a flight test program with a micro parafoil system. Results from the flight test program are synthesized and integrated into a 6 degree-of-freedom simulation. The simulation model is subsequently …

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Air Power, St. Olaf College Jan 2007

Air Power, St. Olaf College

Aeronautics

Photographs of a display of government documents from St. Olaf College, Minnesota.

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Distance Learning For Instrument Flight: Evaluating The Effectiveness Of A Virtual Mentor, Andrew S. Mendolia Jan 2007

Distance Learning For Instrument Flight: Evaluating The Effectiveness Of A Virtual Mentor, Andrew S. Mendolia

Master's Theses - Daytona Beach

PC-based flight simulators are sometimes used as an alternative to traditional forms of instrument training. This type of training typically requires an instructor to be present with the student in order to facilitate training. Flight instructors play many important roles in aviation training, one of which is the role of mentor. The premise of this study was to examine the use of synchronous web-based instruction for instrument flight via Microsoft Flight Simulator’s (10.0) “shared-cockpit” feature, where the instructors serves as a mentor from a distance. The results indicate that web-based instruction is no more effective than practice without instruction. Although …

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Data Mining Methods Applied To Flight Operations Quality Assurance Data: A Comparison To Standard Statistical Methods, Alan J. Stolzer, Carl Halford Jan 2007

Data Mining Methods Applied To Flight Operations Quality Assurance Data: A Comparison To Standard Statistical Methods, Alan J. Stolzer, Carl Halford

Publications

"In a previous study, multiple regression techniques were applied to Flight Operations Quality Assurance-derived data to develop parsimonious model(s) for fuel consumption on the Boeing 757 airplane. The present study examined several data mining algorithms, including neural networks, on the fuel consumption problem and compared them to the multiple regression results obtained earlier. Using regression methods, parsimonious models were obtained that explained approximately 85% of the variation in fuel flow. In general data mining methods were more effective in predicting fuel consumption. Classification and Regression Tree methods reported correlation coefficients of .91 to .92, and General Linear Models and Multilayer …

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An Airline Ab Initio Flight Training Program In The United Arab Emirates (Uae): An Analytical Approach Toward Emiratization, Shareef A. K. Al-Romaithi Dec 2006

An Airline Ab Initio Flight Training Program In The United Arab Emirates (Uae): An Analytical Approach Toward Emiratization, Shareef A. K. Al-Romaithi

Master's Theses - Daytona Beach

The continuous establishment and expansion of UAE airlines has led to a demand for qualified pilots in the region of the Persian Gulf. The shortage of UAE national pilots has compelled the local airlines to employ pilots with foreign nationalities. Though the UAE government has implemented a program within the Emirates to increase the number of nationals in the work force (referred to as Emiratization), there has been little headway within the aviation sector. As a result, this thesis was undertaken to develop an ab initio training program that would increase the percentage of UAE nationals among the UAE airline …

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