Aviation Commons^™

Assessing The Methodological Quality Of Aviation Research: A Content Analysis Of Articles Published In Subscription And Open Access Aviation Journals 2014-2016, Isa Tuncman

Theses and Dissertations

The purpose of the study was to determine to what extent aviation research articles were consistent with commonly recommended research protocols. Using a purposive sampling strategy, two subscription and five open access journals published from 2014 to 2016 were targeted, and 139 articles were reviewed using a category based, researcher-developed coding form grounded in commonly accepted research practices presented in educational research methods textbooks. The form reflected models from the medical research community and employed a 3-point scoring rubric: 0 = Not Reported, 1 = Inadequate, and 2 = Adequate. At least two coders reviewed each article, and corresponding Krippendorff …

Design And Evaluation Of High Power, High Efficiency And High Power Density Motor Drives For More Electric Aircrafts, Zhao Yuan

Graduate Theses and Dissertations

More-electric aircraft (MEA) is an attractive concept as it can reduce carbon dioxide emission, relieve fossil-fuel consumption, improve the overall efficiency of aircraft, and reduce the operational costs. However, it poses substantial challenges in designing a high-performance motor drive system for such applications. In the report of Aircraft Technology Roadmap to 2050, the propulsion converter is required to be ultra-high efficiency, high power density, and high reliability. Though the wide band-gap devices, such as the Silicon-carbide based Metal Oxide Silicon Field Effect (SiC-MOSFET), shows better switching performance and improved high-temperature performance compared to the silicon counterparts, applying it to the …

The Effect Of Intensive Auditory Cues On Flight Passengers’ Safe Behaviors, Tianhua Li

Theses and Dissertations

When passengers do not follow in-flight announcements, injuries can occur. It is critical to draw passengers’ attention and help them be aware of the importance of the instructions provided during in-flight announcements. Passengers’ attention can be improved by providing intensive auditory cues before announcements. The auditory cues with intensive acoustic parameters increase the hearers’ perceived level of urgency, and then, they are more likely to perform safer behaviors. Also, when the intensity level increases to an intermediate level, the stimulated persons should have better performance. However, when it increases excessively, their performance may be impaired. The study examined the effect …

Willingness To Pilot In Different Aircraft Sanitization Scenarios, Nicholas Valluzzi, Jesse Shacknai, Brooke Wheeler, Tianhua Li

Aeronautics Student Publications

A stratified sample of Part 141 ground school classes participated in a questionnaire which determined their willingness to pilot among four different aircraft sanitization scenarios. The sanitization scenarios with more precautions resulted in an increased willingness to pilot.

Advanced Concepts For Multiengine Airplane Flying, Nihad E. Daidzic

Aviation Department Publications

FAA Safety Webinar (GL15102159) held online at 9:00 CST on Saturday, November 21, 2020.

Women In Aviation: A Phenomenological Study Exploring The Needs And Wants Necessary For Graduation, Eugene Kim, Jorge L. D. Albelo

Student Works

Despite the increased awareness of gender and race equality movements, today's population of minority women in aviation is still underrepresented. This research focused on underrepresented minority women who want to pursue a career in the aviation field and what factors affect their level of success in a specialized aviation higher education institution. There is not enough data and research surrounding the topic of minority women in aviation and their paths to success in these institutions. This qualitative research aimed to bridge the existing gap in the literature related to minority women in aviation and their needs and wants to complete …

Methodologies And Techniques For Determining The Value Of An Aircraft, Bijan Vasigh, Farshid Azadian, Kamran Moghaddam

Publications

Aircraft valuation and the estimation of an accurate aircraft price is undoubtedly a challenging task that has significant consequences for airlines. This paper presents an asset valuation model to show how a series of endogenous as well as exogenous factors can influence the value of an aircraft. Specifically, a discounted cash flow methodology is used to forecast the valuation of an old or new generation aircraft. Both total operating revenue and aircraft operating costs are taken into account to devise a reliable pre-tax profit measurement that is used as the basis of the discounted cash flow analysis. A sensitivity analysis …

Decision-Making Matrix To Enable Shorter Connections, Fernanda Torezan Godoy, Sergio Abrao Retes Jr., Talita Zucchini Rabelo

Graduate Student Works

MCT is known as Minimum Connection Time. It refers to the time needed for a passenger to connect from a flight to another in a specific airport, varying according to the connection type. MCT is an essential tool for airlines. It is used as an input in constructing their network and daily, specifically by operational teams, to connect or disconnect a passenger from a flight, for example, during an IROPS scenario. However, the MCT is considered the worst scenario of the variables that composes it, which means that there are opportunities for airlines to reduce the connection time in daily …

In-Flight Fuel Management Committing To The Destination, Aldo Bien, Daniel Araguaia Galli Ribas, Paulo Cesar Serafim Pacheco, Rodrigo Garcia De Freitas Cardoso

Graduate Student Works

This project intends to clarify the Brazilian Civil Aviation Regulation RBAC 121 on its topic relating to the current ICAO recommendation from Doc. 9976 (Flight Planning and Fuel Management Manual), which regards the committing to the destination policy.

The present Brazilian regulation is not precise whether the alternate fuel could or could not be used to proceed to the original destination without compromising the emergency fuel, once exact specific requirements are met. As a result of unclear directrices, each major airline in Brazil comprehends and applies the ICAO recommendation in its way. Such a non-standardized interpretation of the current …

Covid 19 Impact On Aircraft Ground Time At Congonhas Airport (Cgh), Fabio Pereira Teixeira, Felipe Massao Higa, Ricardo Matsumoto Jakabi, Rodrigo Moreira Riberiro

Graduate Student Works

This project aims to research and analyze the impact of the increase of ground time at Congonhas Airport caused by the new safety procedures in aviation to avoid the spread of the COVID-19 virus.

Aviation is a highly regulated industry, with the high cost and tiny margins. It focuses on optimizing one of the most expensive assets, the aircraft. To keep aircraft flying is one of the airline's primary goals as aircraft on the ground means no revenue generation and cost increase.

Congonhas Airport is one of the busiest airports in Brazil and already operated on its limited capacity before …

A Ranking Method To Prioritize Vfr Airports To Be Provided With Instrument Approach Procedures, Marcelo Soares Leao, Gustavo A.M. Ortegal Leal, Fabio Rodrigues Paukoski Fernandes

Graduate Student Works

The primary purpose of this work is to investigate the necessity of a more comprehensive and systematic method to prioritize airports to be provided with instrument approach and landing procedures in the Brazilian air transportation landscape. An overview of the main contributors to risks associated with the approach and landing phases is provided, covering the most important aspects of unstable approaches and CFIT events. Considering the emergence of Terrain Awareness and Alerting Systems (TAWS), the role of its contribution to safety is discussed, as well as the certification context related to the design, installation, and operation of those systems. A …

Assessing The Relationship Between Organizational Management Factors And A Resilient Safety Culture In A Collegiate Aviation Program With Safety Management Systems (Sms), Daniel Kwasi Adjekum, Marcos Fernandez Tous

Aviation Faculty Publications

Extant research advocates for assessing and continuously improving resilient safety culture in high-reliability organizations (HROs) such as aviation that has a fully functional Safety Management Systems (SMS). Perceptions on the relationship between four (4) organizational management factors (Principles, Policy, Procedures, Practices) and resilient safety culture in a collegiate aviation program was assessed using an online survey instrument drafted using Reason (2011) concept on safety resilience. Sample was drawn from aviation students, flight instructors, faculty and administrators. Structural Equation Model (SEM) and Causal Path Analysis (CPA) techniques were used to assess conceptual models. Results suggest good …

Brazilian Regulation Aspects And Their Impact On Costs, Alexandre Berbel, Frederico Zaccaro, Philippe Dos Santos, Rogerio Maldonado

Graduate Student Works

This project analyzes the Brazilian regulation for the airline and the current public data provided by the stakeholders. It intends to scientifically support a possible change in Brazil's existing regulation related to airline responsibilities on passenger accommodation for different types of situations, including ANAC 400 and other ramifications. This project aims to compare the Brazilian law with various regulations adopted in other markets where the rules are created considering different circumstances to define responsibilities for the passenger accommodations. This study will analyze the differences, measuring the impacts that changes could bring in terms of costs for the Airlines. It will …

Parking Effects On Aircraft Reliability And Flight Performance, Danilo Scolfaro Fava, Fabio Renato Rossi Do Nascimento, Lucas Serrano Rodrigues, Rafael Gustavo Shoiti Yamashiro

Graduate Student Works

During the pandemic period caused by Coronavirus (COVID-19) in 2020, the airlines have parked or stored their fleets partially or wholly worldwide. The International Air Transport Association (IATA) estimated a major downsize in approximately 65% of the worldwide airline fleet's airline operational activity at the end of April 2020. With that said, mechanical and electrical systems, when stopped during long periods, can deteriorate by corrosion, contamination, discharge, and oxidation (Boeing, 1998). During the aircraft parking or storage process, it is not different (Airbus, 2020). This study aims to understand how much the aircraft performance and reliability are affected by parking …

Engine Light Repair Shop Evaluation For A Brazilian Airline, Gustavo Henrique Melhado Trevilatto, Marcelo Miranda, Leila Halawi

Publications

The maintenance cost of a commercial aircraft comprises airframe, components, and engines. The most expensive of them are engines, which may represent up to 60% of an aircraft cost, and therefore will have a significant impact on any airline finance. As a result, engine fleet maintenance management is crucial for any airline sustainability. Apart from heavy maintenance where life-limited parts are replaced and its performance restored, aircraft engines are often required to come off wing for light repair due to operational issues like foreign object damage, high oil consumption, and vibration issues. In other cases, even though being operational, engines …

Training Synergy, Andre Vieira Caputo, Everton Amieiroe, Lucio De Araujo Alves, Renan Dapena Roveran, Leila Halawi

Publications

Brazil is facing a growth in the airline industry where all the major airlines are currently hiring pilots, flight attendants, and mechanics. One of the challenges of those airlines is to provide training for all these professionals. Many times they do not have instructors or classrooms available. It is crucial for the airlines to promote faster and better training, to reduce cost, save time and resources to prepare a better professional. In this paper, we are showing the possibility of increasing the cost performance of airline training by providing alternatives to airlines. The idea is to promote synergy between the …

Geomagnetic Aided Dead-Reckoning Navigation, Andrei Cuenca

Doctoral Dissertations and Master's Theses

The dependence of modern navigation methods on global positioning systems has led to developing alternative algorithms for localization, capable of providing reliable and robust estimations. Global position system is commonly used in a vast majority of the world’s devices, and it can supply real time position and velocity information. However, its accuracy can be compromised by external operational effects such as signal availability, cyber-attacks or weather conditions. This thesis investigates an alternative approach to enhance navigation in GPS-denied environments. Particularly, it develops an integrated navigation architecture based on geomagnetic referencing models capable of dead reckoning at GPS denied intervals. A …

An Exploratory Study Of General Aviation Visual To Instrument Meteorological Condition Contextual Factors, James Harry Hartman Iii

Doctoral Dissertations and Master's Theses

The purpose of this dissertation was to bridge the existing literature gap of outdated contextual factor (CF) research through examination and determination of current General Aviation (GA) Title 14 Code of Federal Regulations (CFR) Part 91 visual flight rules (VFR)-into-instrument meteorological condition (IMC) contextual factors. Contextual factors are a multifaceted arrangement of pertinent events or occurrences contributing to pilot accidents in weather-related decision-making errors. A total of 46 contextual factors were identified and examined from the reviewed research literature. The study examined and determined the presence of the 46 contextual factors, frequencies, and manifestations in the GA VFR-into-IMC Aviation Accident …

From Classroom To Industry: Human Factors In Aviation Maintenance Decision-Making, Bettina Mrusek, Stephanie Douglas

Publications

The presence of human factors in aviation remains a critical area of research given the safety implications of human error. Understanding what specific factors contribute to human error allows managers and operators to take steps to mitigate these hazards. Several methods have been tested in the cockpit and cabin crew environments, but less attention has been given to the aviation maintenance sector, despite the prevalence of accidents resulting from human error. With the introduction of AC-172A, the FAA validated the need for additional research and training on the role of human factors in aviation maintenance errors. However, a key component …

Facilitating Educational Opportunities For Pilots Using Cohort Rpl, Pio Fenton, Deirdre Goggin

Dept. of Marketing & International Business Conference Material

Facilitating Educational Opportunities for Pilots using Cohort RPL 3.3 Pio Fenton and Deirdre Goggin The lifestyle and, indeed workstyle, of pilots has long proved an impediment to the attainment of third level qualifications while maintaining active and full participation in the workforce. Equally, the significant investment in pilot training has been poorly reflected in mechanisms of advanced entry to college and university programmes. This poses a quandary for those of us in Higher Education which requires quick resolution for this critical element of the airline industry. Cork Institute of Technology (CIT) has developed a programme which, by design, reflects the …