Aviation Commons^™

Co2 Reduction Measures In The Aviation Industry: Current Measures And Outlook, Florian Mathys, P. Wild, J. Wang

International Journal of Aviation, Aeronautics, and Aerospace

This article gives a holistic overview of the current CO₂ reduction measures and analyses the effectiveness of measures that are feasible for implementation in the future. To achieve the objectives of the Paris Agreement, the aviation industry needs to implement reduction measures because of its forecasted growth and contribution to global warming. The focus is set on CO₂ reduction measures, categorized in technology, operations, infrastructure/air traffic management (ATM), and market-based measures. The most promising long-term technologies to reduce CO₂ emissions are hydrogen-powered aircrafts and sustainable aviation fuels (SAF). In terms of operations, CO₂ emissions can be …

Quantum Safety Metrics Framework For Commercial Unmanned Aircraft Operators, Tracy L. Lamb, Nathan A. Phillips, Trong Van Nguyen

International Journal of Aviation, Aeronautics, and Aerospace

Commercial unmanned aircraft systems continue to increase in applications and diversity; however, mishaps and accidents erode safety, investment return, and efficiency. Most unmanned aircraft accidents are preceded by leading indicators; the ability to forecast and quantify these may provide increased safety and profitability. This mixed-method research study used a non-experimental parallel convergence approach with multiple instruments, multiple-case study n = 22, and one exemplar case design to develop a quantum safety metric program. This study used a combination of previously validated methods as development instruments, including; the HFACS, STAMP, 'Sierra Scale,' and Accident Prevention Effort equations. The study extended the …

Performance Of The Egnos System In Algeria For Single And Dual Frequency, Lahouaria Tabti, Salem Kahlouche, Belkacem Benadda

International Journal of Aviation, Aeronautics, and Aerospace

EGNOS (European Geostationary Navigation Overlay Service) transmits data for more accurate real time positioning with an integrity message for GNSS navigation satellites, which are in view by RIMS station (Ranging and Integrity Monitoring Stations) extended over a continent.

The purpose of this paper is to analyses the performances of EGNOS V2 single frequency L1 and EGNOS V3 dual frequency L1/L5 without RIMS station in Algeria. During this work, four procedures of flight (APV I, LPV 200, APV II and CAT I) were analyses to determine the optimal performances of the EGNOS system in terms of availability and continuity.

We have …

Measuring Safety Culture: Qualitative And Quantitative Means Of Measuring Safety Culture For Safety Management System Optimization, David R. Zubowski

International Journal of Aviation, Aeronautics, and Aerospace

The Department of Transportation Office of the Inspector General (2020) investigated the Federal Aviation Administration oversight of Southwest Airlines Safety Management System and noted concerns and gaps in the oversight, specifically with the lack of guidance provided to inspectors in evaluating organizational safety culture. Using the published report as a case study, this work researched different peer-reviewed articles using qualitative and quantitative means to investigate the benefits, limitations, and assumptions of measuring an organizational safety culture. While different methods were used, academia seems to have settled on definitions for safety culture and safety climate with the majority of researchers using …

Helicopter Shaft Heating Parameters For Polyamide-11 Coating, Selim Kevran Ph.D, Uğur Ati̇ci̇

International Journal of Aviation, Aeronautics, and Aerospace

In this study, the heating parameters required for polyamide-11 (P11) coating of the helicopter shaft were investigated. The torsion value created by the force applied to the middle of the helicopter's shaft is measured. Heating before coating affects the torsion value of the shaft. A new heating mechanism has been designed to cover the shaft surface without changing the torsion value of the shaft. Thus, the coating surface is left inside the furnace and the torsion measurement area outside of the furnace. Taguchi method was used to determine heating parameters such as furnace type, initial temperature and heating time. The …

Implementing Artificial Intelligence And Machine Learning Into Advanced Qualification Programs, Jennifer R. Herr

Journal of Aviation/Aerospace Education & Research

Since its start, the Advanced Qualification Program (AQP) has encouraged new and innovative strategies for training airline crewmembers. The foundation of AQP is to train crew the way they fly and to find new and innovative ways to increase safety through training. By using data collected through the AQP process, training methods can be refined and improved. New technologies, such as artificial intelligence (AI) and machine learning can make data analysis and training more effective and efficient. This paper will explore these concepts and how AI and machine learning could be implemented in the AQP process to make training more …

Flight Data Management And Pilot Protection In An Ads-B World, James Norman

Aviation Faculty Publications

Airlines and unions need to reconsider and reimagine what flight operational quality assurance (FOQA) data is, its use and protection. Open-source flight data, such as ADS-B, needs to be protected as strongly as traditional FOQA data for US operators. Airlines and unions should adopt contractual language that expands FOQA protections to all recording and transmitting devices, future proofing against emerging and novel technologies.

Assessing The Relationships Between Organizational Management Factors (4ps) And A Resilient Safety Culture In A Collegiate Aviation Program With A Safety Management Systems (Sms), Daniel Kwasi Adjekum

Aviation Faculty Publications

Resilient safety culture is a key factor in sustaining safety management systems (SMS) in a U.S. collegiate aviation program. The relationships between four organizational management factors (Principles, Policy, Procedures, Practices) and a resilient safety culture model based on Reason’s concept was assessed using an online survey instrument. Structural Equation Model (SEM) technique were used to assess measurement models of factors underlying a resilient safety culture. All four management factors had significant predictive relationship with resilient safety culture. Practices had the weakest predictive relationship with resilient safety culture and Policy had the highest. Procedures strongly mediated path between Policies and Practices …

Competency-Based Education: A Framework For A More Efficient And Safer Aviation Industry, Flavio A. C. Mendonca, Julius Keller, Brian G. Dillman

Publications

Aircraft design and reliability as well as pilots’ education and training have steadily and significantly improved in the last 20 years. Nevertheless, high-profile accidents still occur, even when the aircraft and related systems are operating adequately. Controlled flight into terrain, runway incursion accidents, and loss of control in flight are examples of mishaps in which inadequate decision-making, poor leadership, and ineffective communication are frequently cited as contributing factors. Conversely, the investigation of accidents (e.g., US Airways Flight 1549, in the U.S. on Jan. 15, 2009) and serious incidents (e.g., TAM Linhas Aereas Flight 3756 in Brazil on June 17, 2011) …

Detectability Of Clothing Color By Small Unmanned Aircraft Systems For Search And Rescue Operations, Ryan Blackburn, Robert Joslin

Journal of Aviation/Aerospace Education & Research

Search-and-rescue operations are adopting small unmanned aircraft system technology to aid traditional human search parties operating on foot or by vehicle, which can be hindered by challenging terrain and obstacles. This study utilized three camera equipped small unmanned aircraft to collect aerial images of a simulated human torso in a rural/remote desert summer daytime environment. The study compared detection rates for 10 different garment colors using image analysis software. Results indicated that garment color was statistically significant for detection rate. However, the garment colors with the highest detection rates did not correspond with the garment colors recommended by retail outlets, …

Interactive Modules For Flight Training: A Review, Stephanie G. Fussell, Robert Thomas

Journal of Aviation/Aerospace Education & Research

The use of animation and video, combined with auditory and text components, to teach complex subjects can be beneficial to deepen understanding. A review of the literature was conducted to better understand how interactive learning modules can give flight students tools to enhance the learning process outside of traditional instruction. Instructional theories and educational environments were considered through the lens of designing course content for flight students. Several research questions were asked to guide the course of the research, all focused on how students learn a complex subject matter using interactive material. Guidelines and principles are discussed to ensure the …

Aviation English Assessment And Training, Robert Fowler, Elizabeth Mathews, Jena Lynch, Jennifer Roberts M.A.

Publications

Due to a significant global increase in demand for air travel, there has been a corresponding increase in demand for ab initio flight training. Thousands of international flight students seek admission to collegiate aviation programs in the United States and Canada every year. These international flight students come to the United States and Canada because flight training is nonexistent in their native countries. In fact, flight training in most of these countries is impossible due to airspace restrictions and onerous regulations. If there is flight training available in these countries, the cost is usually prohibitive compared to the cost in …

Leveraging Aircraft Transponder Signals For Measuring Aircraft Fleet Mix At Non-Towered Airports, Chuyang Yang, John Mott, Darcy M. Bullock

International Journal of Aviation, Aeronautics, and Aerospace

The general aviation sector has contributed significantly to the overall growth of the aviation industry. Fleet mix and operations information is important for the analysis of both the safety and the environmental and economic impact of general aviation activity. Factual data on the impact of environment and safety is particularly important, given the scarcity of airport improvement funds and the strong stakeholder engagement that often occurs when airport investments are evaluated. The research presented herein evaluates Mode S short and extended squitter data collected from three general aviation airports over a one-month period. This article demonstrates that by utilizing the …

Automatic Dependent Surveillance Broadcast (Ads-B) Security Mitigation Through Multilateration, Skylar Stroman

UNF Graduate Theses and Dissertations

Automatic Dependent Surveillance Broadcast (ADS-B) was mandated January 1^st, 2020 to all commercial aircraft that fly over 10,000 ft. This radio frequency (RF) based technology is part of an international plan to phase out radar-based surveillance within the airspace. Unfortunately, due to a lack of encryption and other security measures, ADS-B transmission remains open for possible exploitation. This thesis will explore the use of Multilateration (MLAT) to validate location data provided within the ADS-B framework. MLAT uses the Time Difference of Arrival (TDOA) at multiple locations to determine the origin of a received signal. Additionally, as MLAT greatly …

Small Unmanned Aircraft Systems Acoustic Analysis For Noninvasive Marine Mammal Response: An Exploratory Field Study, David Thirtyacre, Gennifer Brookshire, Sarah Callan, Brittany Arvizu, Patrick Sherman

International Journal of Aviation, Aeronautics, and Aerospace

As in countless other fields of human endeavor, small unmanned aircraft systems (sUAS) have the potential to benefit pinniped (Pinnipedia; e.g., Phocidae [seals], Otariidae [sea lions], and Odobenidae [walruses]) response efforts. The employment of sUAS could give responders a close-up look at animals in distress in order to determine their condition as well as develop a response strategy. However, unlike other subjects that are regularly inspected by sUAS (e.g., croplands and civil infrastructure) pinnipeds may respond to the distinctive sound generated by small, multirotor sUAS. This reaction may include retreating into the water en masse, which could put …

Predictability Improvement Of Scheduled Flights Departure Time Variation Using Supervised Machine Learning, Deepudev Sahadevan, Palanisamy Ponnusamy Dr, Manjunath K. Nelli Mr, Varun P. Gopi Dr

International Journal of Aviation, Aeronautics, and Aerospace

The departure time uncertainty exacerbates the inaccuracy of arrival time estimation and demand for arrival slots, particularly for movements to capacity constrained airports. The Estimated Take-Off Time (ETOT) or Estimated Departure Time(ETD) for each individual flight is currently derived from Air Traffic Flow Management System (ATFMS), which are solely determined based on individual flight plan Estimated Off Block Time(EOBT) or subsequent delays updated by Airline. Even if normal weather conditions prevail, aircraft departure times will differ from ETOTs determined by the ATFMS due to a number of factors such as congestion, early/delayed inbound flight (linked flights), reactionary delays and air …

Notes On Rules Of Thumb For Pilots, Yuzo Inokuchi

International Journal of Aviation, Aeronautics, and Aerospace

The rules of thumb can be found in several flight instructions or pilot's handbooks. Thus far, available rules have been presented without proof or a valid range, such as altitude or velocity ranges wherein these rules can be applied. This paper presents the background theory for a few selected rules; then, the rule is compared with a first-order approximation of the background theory. A valid range is presented by analyzing the prediction accuracy of the rule, which is defined as the relative error of the rule to the background theory. These rules of thumb provide a good approximation of the …

Identification Of Wind-Induced Hazard Zones Impacting Uas Bridge Inspection, Jack J. Green, John Mott

International Journal of Aviation, Aeronautics, and Aerospace

Unmanned Aerial Systems (UAS) continue to grow in both popularity and utility within the national airspace system. The use of commercial UAS for civil inspection, specifically that of bridge structures, is becoming commonplace among practitioners and academics alike. The development of an integrated bridge-inspection hazard model provides a way for UAS operators to prepare for and respond to changing environmental conditions that could otherwise prevent a successful UAS flight. The interaction of wind-induced airflow with bridge surfaces creates an aerodynamic wake that can result in hazardous conditions for a UAS platform operating in close proximity. An analysis of this airflow …

Aviation Culture: A ‘Glass Sky’ For Women Pilots - Literature Review, Ivana Gorlin, Donna Bridges

International Journal of Aviation, Aeronautics, and Aerospace

This paper reports on a review of literature covering gender issues in aviation. It considers the impacts of aviation culture on women pilots. The focus of the review was on empirical studies over a 25-year period (1996-2020). Two research questions underpin the review; firstly, we investigated how aviation culture impacts women pilots’ experiences, secondly, we considered its effect on women as pilots. Using a hermeneutic methodological framework, we found that cultural attitudes towards women pilots in the aviation industry are biased and discriminatory. The studies in the review overwhelming concur that the hegemonic masculine culture that dominates aviation significantly diminishes …

Pilot Visual Detection Of Small Unmanned Aircraft On Final Approach During Nighttime Conditions, Jon M. Loffi, Ryan J. Wallace, Samuel M. Vance, Jamey Jacob, Jared C. Dunlap, Taylor A. Mitchell, Dane C. Johnson

International Journal of Aviation, Aeronautics, and Aerospace

In December 2020, the Federal Aviation Administration (FAA) announced the release of a new final rule, permitting operators of small unmanned aircraft systems (sUAS) to perform routine night operations. Public comments to the Notice of Proposed Rulemaking indicated potential safety concerns regarding a pilot’s ability to spot a low-altitude sUAS during nighttime conditions. Leveraging data from the FAA’s UAS Sighting Report Database, the research team evaluated the significance of aircraft encounters with UAS at night. Researchers conducted an inflight experiment in which 10 pilots performed an instrument approach to airport during nighttime conditions in which a multi-rotor sUAS presented a …