Aviation Commons^™

Fatal General Aviation Accidents In Furtherance Of Business (1996–2015): Rates, Risk Factors, And Accident Causes, Scott Burgess, Stewart Boyd, Douglas D. Boyd

Publications

Introduction: General aviation missions related to furtherance of business potentially carry higher risk (operations in adverse weather, at night, for longer distances) than those undertaken for recreation. The study herein was undertaken to determine fatal accident rates, proportions, and risk factors/causes. Method: The National Transportation Safety Board aviation accident database was queried for accidents (1996–2015). Annual fleet times were from the general aviation annual activity survey. Statistical analyses used Poisson distributions, proportion testing, and Cohen’s Kappa tests. Results: The fatal accident rate for business operations was three- to six-fold lower than the rate for recreational flights with a decline evident …

Enhancing The Safety Training Of Ga Pilots To Reduce The Risk Of Bird Strikes: An Experimental Pilot Study, Flavio A. C. Mendonca Phd, Thomas Carney Phd, Richard O. Fanjoy Phd

International Journal of Aviation, Aeronautics, and Aerospace

Analyses of wildlife strike data from 2000 through 2016 indicate that for the general aviation (GA) community, the number and rate of damaging strikes has increased both at and outside the airport environment. Pilots play an important role in the accident prevention process due to wildlife, ranging from reporting strikes to using appropriate aircraft operating techniques to mitigate the risk of strikes. Therefore, safety efforts require enhanced aeronautical decision-making (ADM) for pilots. The purpose of this pilot project was to investigate if a safety protocol would enhance Part 141 GA pilots’ knowledge and skills to mitigate the risk of bird …

Uas Maintenance: A Critical Component In Maintaining Airworthiness, Bettina M. Mrusek, Kristy W. Kiernan, Patti J. Clark

International Journal of Aviation, Aeronautics, and Aerospace

Over the last several decades, the notion of traditional aircraft design has significantly changed. While there are many modern aircraft that resemble earlier models, their components, systems, and overall architecture have evolved, including the introduction of small unmanned aircraft systems (sUAS). Despite the growing consumer attraction to own and operate these aircraft, the subsequent impact on safety is an area of intense concern. The requirement of an established maintenance program for manned aircraft is rooted in ensuring that all aircraft are deemed safe for flight. Preventive maintenance schedules are based on component reliability data, which minimizes unnecessary maintenance while preventing …

Quantitative Examination And Comparison Of Altimetry Rules-Of-Thumb For General Aviation, Thomas A. Guinn

International Journal of Aviation, Aeronautics, and Aerospace

General aviation rules of thumb (ROTs) for density altitude and true altitude are examined and developed. Both ROTs originate from the same basic principle of hydrostatic balance, but differ significantly in the assumptions made regarding the atmospheric temperature profile. While the ROT for DA assumes a standard atmospheric vertical temperature lapse rate, the ROT for true altitude requires information regarding the observed layer-mean temperature of the atmosphere. Since the layer-mean temperature between the aircraft and the surface is typically unknown, it must be inferred from the temperature at a single level by again assuming a linear lapse rate. This method …

Language-Related Communications Challenges In General Aviation Operations And Pilot Training, Bradley S. Baugh, Alan J. Stolzer

International Journal of Aviation, Aeronautics, and Aerospace

English is the basis for aviation communications worldwide creating challenges for both native and non-native English speakers. An unfortunate outcome of language-related communications issues, whether indirectly or directly, has been aircraft mishaps. As aviation grows worldwide, the potential for miscommunication increases. Previous studies have concentrated on commercial aviation accident analysis. A similar focus on general aviation operations and pilot training incidents in the U.S. is needed. Voluntary incident reporting is a key component in Safety Management Systems in order to address problems before they become accidents. This project studied voluntary incident reports to analyze the number of language-related reports filed …

Mental Health In Commercial Aviation - Depression & Anxiety Of Pilots, Maurice C. Dehoff, Stephen K. Cusick

International Journal of Aviation, Aeronautics, and Aerospace

Two landmark accidents invigorated the discussion regarding pilot mental health. Other incidents may also have a mental health component that is related to, but not the direct cause of, the event. It is suspected that these “other incidents” are much more commonplace and while not catastrophic, erode safety. Depression and anxiety are two commonly occurring mental health concerns. Research indicates that a considerable portion of the U. S. population suffers from some form of mental health issue. Most go undiagnosed and untreated. A similar rate of occurrence appears to be found within the airline pilot population. The stigma of mental …

Called To Safety? Individual And Combined Effects Of Safety Climate And Occupational Callings On Aviator Safety Performance, Michele W. Gazica, Erin E. Bowen, Michael A. Mccarson, Kristen A-M. Chadwell

Journal of Aviation/Aerospace Education & Research

This study examined the individual and combined effects of two potential antecedents to aviation-related safety performance: safety climate and occupational callings. Research exploring the importance of occupational callings to the safety domain is in its nascent stages. The extent that someone is living a calling may explain variance in actual safety performance above that which can be explained by safety climate alone. Survey data from aviators in a flight training program were analyzed to evaluate the ability of occupational calling assessments to inform the potential for safety mishaps within the aviation industry. Results indicate that both safety climate and occupational …

Adaptive Learning Pedagogy Of Universal Design For Learning (Udl) For Multimodal Training, Ziho Kang, Mattlyn R. Dragoo, Lauren Yeagle, Randa L. Shehab, Han Yuan, Lei Ding, Stephen G. West

Journal of Aviation/Aerospace Education & Research

Traditionally, students or trainees usually receive training through a unidirectional instructional approach that can lack interactive activities or through a single material source in classrooms. Therefore, it is possible that some trainees might encounter a sink-or-swim situation if they are not able to understand the materials presented during classroom lectures nor execute correct procedures during laboratory sessions with time-intensive training. To address this issue, the Universal Design for Learning (UDL) asserts that trainees can increase their performance if instructors can provide the trainees with diversified means of information representation, expression opportunities, and engagement means. However, we lack the framework on …

Human Error Analysis Of Helicopter Emergency Medical Services (Hems) Accidents Using The Human Factors Analysis And Classification System (Hfacs), Paul E. Cline

Journal of Aviation/Aerospace Education & Research

Helicopter Emergency Medical Services (HEMS) is among the most dangerous type of flying in commercial aviation. This research utilized the Human Factors Analysis and Classification System (HFACS) to understand the errors, preconditions and violations that contribute to these accidents. Drawing upon source data from the National Transportation Safety Board’s Aviation Accident Database, HEMS accidents from 2000-2016 were analyzed according to the HFACS framework.

Igniting Self-Directed Learning And Higher Level Workforce Competencies In An Aviation Curriculum, Timothy D. Ropp

IMPACT Presentations

Discusses the underlying concepts and pedagogies informing an IMPACT redesign course in Aviation, focused on developing workplace competencies and students' self-directed learning.

Spacecraft Fire Safety Research: Combustion Of Lithium-Ion Batteries To Predict Fire Scenarios, Elisabeth Meyer

Williams Honors College, Honors Research Projects

The purpose of this project was to research characteristics of a Lithium-ion battery fire to determine if trends exist in measured fire characteristics that can help predict different fire scenarios. These experiments will ultimately aid in developing an alarm threshold for a spacecraft smoke detector, specifically for Orion, a new, multi-purpose crew vehicle under development by NASA. Orion is the next-generation of spacecraft designed to replace the space shuttle and will play an important role in NASA’s journey to Mars.

In the experiments performed, Lithium-ion batteries were placed in a test chamber and ignited while smoke concentration was measured, simulating …

Airships In U.N. Humanitarian And Peace Operations: Ready For Service?, Walter Dorn, Nic Baird, Robert Owen

Journal of Aviation/Aerospace Education & Research

This study examines whether the United Nations should take steps in the near future to exploit the operational characteristics of lighter-than-air (LTA) and hybrid aircraft in support of its peace and humanitarian operations. Continued progress in the development of LTA transport system makes this a timely issue. At the same time, this progress highlights persistent challenges to the conduct of reliable and safe LTA operations, particularly in the face of bad weather and threats from groups hostile to the UN mission. The report examines this issue in four sections: (1) the potential advantages of LTA operations; (2) their disadvantages; (3) …

Design Of Shape-Conforming Nosecone For Optimal Fluid Flow From Transonic To Supersonic Range, Anna Tombazzi

Williams Honors College, Honors Research Projects

Modern flight vehicles, such as rockets, missiles, and airplanes, experience a force caused by forebody wave drag during the flight. This drag force is induced when the frontal point of each vehicle breaks the pressure wave during flight. Efforts to reduce this wave drag force to improve flight efficiency include modifying the nosecone profile of the flight vehicles to lower the drag force.

This project revolved around creating a design to make the transformation of nosecone shapes from a ¾ Parabolic profile to a ½ Power Series profile possible, mid-flight. Using a novel nosecone assembly, shape memory alloys (SMAs) and …

Airport Innovations And Innovators, Jennifer A. Torres

Student Publications and Presentations

Airports are facing challenges from increased capacity, funding airport infrastructure projects, finding new sources of revenue, to developing new talent. With all of these challenges, airport leadership seek alternative solutions and innovate personnel to produce customer-centric airport designs. New methods of funding are providing high-cost renovations to large airports such as LaGuardia (Plotnick, 2017, Oct. 5). Other airport leadership has developed commissions such as the Economic Development Commission of Florida’s Space Coast to lure significant aerospace companies to their community (The Editorial Board, Florida Today, 2017, Oct. 27). Airport leaders are also active in bringing large flight schools and redeveloping …

Evaluating The Effect Of Turbulence On Aircraft During Landing And Take-Off Phases, Anthony O' Connor, Derek Kearney

International Journal of Aviation, Aeronautics, and Aerospace

—— Low level wind shear and turbulence present a serious safety risk to aircraft during the approach, landing and take-off phases. Low level wind shear has been identified as one of the primary factors for aircraft go-arounds and aborted landings. During any given year, wind shear occurs thousands of times at airports around the world, affecting the arrival and departure of aircraft. This paper has quantified the direct cost of flight Go-arounds. This paper will show the potential savings to the aviation industry. This paper will argue that a solution to the problem of forecasting low level wind shear and …

Evaluating Small Uas Near Midair Collision Risk Using Aeroscope And Ads-B, Ryan J. Wallace, Kristy W. Kiernan, Tom Haritos, John Robbins, Godfrey V. D'Souza

International Journal of Aviation, Aeronautics, and Aerospace

As small unmanned aircraft systems (sUAS) continue to proliferate in the National Airspace System (NAS), near midair collisions are becoming more common. In late 2017, the National Transportation Safety Board released a report detailing the first confirmed midair collision between a sUAS and manned aircraft in the United States. In February 2018, a video of a sUAS maneuvering around a passenger jetliner on approach to a Las Vegas airport went viral on YouTube. Just months later, a helicopter instructor pilot reported performing evasive maneuvers to avoid colliding with a sUAS, resulting in a non-fatal crash. From 2014 to 2018 the …

Manned Versus Unmanned Aircraft Accidents, Including Causation And Rates, Justin A. Jaussi, Herbert O. Hoffmann

International Journal of Aviation, Aeronautics, and Aerospace

Many consider aircraft reliability a primary deterrent to the further integration of unmanned aircraft into civil airspace. Discussions of unmanned aircraft reliability often include comparisons of accident rates of medium and large unmanned aircraft (like the MQ-1 Predator and MQ-9 Reaper) to those of manned aircraft. These comparisons, however, often consider a recent period only but do not consider platform maturity. While this approach is valid—and worthy of discussion—it does not present a complete picture of the unmanned aircraft safety record. This paper employs a chi-square goodness-of-fit approach to compare the progression of the U.S. Air Force MQ-9 mishap rate …

Assessing The Risks: An Analysis Of Wildlife-Strike Data At The Three Busiest Brazilian Airports (2011-2016), Flavio A. C. Mendonca Ph.D., Chenyu Huang Ph.D., Thomas Q. Carney Ph.D., Mary E. Johnson Ph.D.

International Journal of Aviation, Aeronautics, and Aerospace

Brazil is the largest country in Latin America and has a considerable amount of air traffic volume domestically and internationally. Wildlife strikes are an increasing safety and economic concern for aviation operations in Brazil. The Brazilian Aeronautical Accidents Investigation and Prevention Center (CENIPA) has published annual reports summarizing the results of analyses of the data in a national level since 2009. The goal of this study was to supplement the CENIPA’s annual reports with information derived from the analysis of wildlife strikes to aviation, during 2011-2016, from the three busiest international commercial airports in Brazil: Guarulhos, Brasília, and Galeão. A …

Commercial Airline Pilots' Attitudinal Data On Controlled Rest In Position: A Qualitative Inquiry, Stephen Rice, Scott R. Winter, Emily C. Anania, Gajapriya Tamilselvan, Shawn Doherty

Publications

Fatigue is a significant contributor to accidents in aviation, in commercial, private, and military aircraft, and is defined as “extreme tiredness resulting from mental or physical exertion or illness” (Oxford Dictionary, 2017, n.p.). Typical fatigue mitigation techniques include work and rest scheduling, obtaining required minimum rest before a flight, and pharmacological countermeasures (Caldwell & Caldwell, 2005; Caldwell, Mallis, Caldwell, Paul, Miller, & Neri, 2009). However, Controlled Rest in Position (CRIP), or in-flight sleep, may be another potential way to mitigate pilot fatigue. Prior research has investigated consumer perceptions relating to CRIP, revealing unfavorable perceptions (Winter, Carryl, & Rice, 2015). However, …

Uas Pilots Code – Annotated Version 1.0, Michael S. Baum, Kristine Kiernan, Donald W. Steinman, Ryan J. Wallace Ed.D.

Publications

The UAS PILOTS CODE (UASPC) offers recommendations to advance flight safety, ground safety, airmanship, and professionalism.6 It presents a vision of excellence for UAS pilots and operators, and includes general guidance for all types of UAS. The UASPC offers broad guidance—a set of values—to help a pilot interpret and apply standards and regulations, and to confront real world challenges to avoid incidents and accidents. It is designed to help UAS pilots develop standard operating procedures (SOPs), effective risk management,7 safety management systems (SMS), and to encourage UAS pilots to consider themselves aviators and participants in the broader aviation community.