Open Access. Powered by Scholars. Published by Universities.®

Aviation Commons

Open Access. Powered by Scholars. Published by Universities.®

576 Full-Text Articles 819 Authors 60474 Downloads 31 Institutions

All Articles in Aviation

Faceted Search

576 full-text articles. Page 1 of 20.

A Comparison Of Malfunction-Related Accidents For General Aviation Aircraft Manufactured In 1970–1984 And 2000–2014, Douglas Boyd, Jochen Hinkelbein 2017 University of Texas Graduate School of Biomedical Sciences at Houston

A Comparison Of Malfunction-Related Accidents For General Aviation Aircraft Manufactured In 1970–1984 And 2000–2014, Douglas Boyd, Jochen Hinkelbein

Journal of Aviation Technology and Engineering

The United States general aviation fleet is aging with aircraft manufactured 35–39 years ago representing the most prevalent group. Since older aircraft are more prone to airframe corrosion, fatigue, and brittle electrical wiring, the present study was undertaken to determine whether malfunction-related accidents for general aviation aircraft manufactured between 1970 and 1984 were elevated relative to airplanes produced more recently (2000–2014).

The NTSB aviation accident database was used to identify piston-powered airplane accidents occurring over the 2005–2014 period. Aircraft manufacture year and fleet activity data were from the FAA. Statistical analyses employed contingency tables and Poisson distributions ...


Modeling And Computation Of The Maximum Braking Energy Speed For Transport Category Airplanes, Nihad E. Daidzic 2017 AAR Aerospace Consulting, LLC

Modeling And Computation Of The Maximum Braking Energy Speed For Transport Category Airplanes, Nihad E. Daidzic

Journal of Aviation Technology and Engineering

Transport-category or FAR/CS 25 certified airplanes may occasionally become braking energy capacity limited. Such limitation may exist when heavy airplanes are departing airports at high-density altitudes, on relatively long runways, and/or possibly with some tailwind component. A maximum braking energy VMBE speed exists which may limit the maximum allowable takeoff decision/action speed V1. The ever-existing possibility of high-speed rejected takeoff in such conditions may also limit the airplane gross weight for declared available distances. To gain deeper insights and acquire better understanding of the topic, a theoretical model of the maximum braking energy and the related VMBE ...


The Effects Of Using Noise Reduction Turbofan Engine Nozzle Designs On A Turbojet Engine, Donald Bartlett 2017 Southern Illinois University

The Effects Of Using Noise Reduction Turbofan Engine Nozzle Designs On A Turbojet Engine, Donald Bartlett

Journal of Applied Sciences and Arts

Abstract

Aircraft noise is a complex topic which is projected to increase with the increasing number of aircraft and size of the engines. Turbine-powered aircraft produce sounds that are considered pollutants at certain decibel levels. Turbofan engines are inherently quieter than turbojet engines for a given level of thrust. The purpose of this research is to determine if current turbofan noise reduction nozzles could reduce the amount of noise for turbojet engines at two different thrust levels. Three turbofan engine nozzles were designed and tested on a turbojet engine. Decibel levels of 30 frequencies for each of the nozzles were ...


An Archival Analysis Of Stall Warning System Effectiveness During Airborne Icing Encounters, John Michael Maris 2017 Embry-Riddle Aeronautical University

An Archival Analysis Of Stall Warning System Effectiveness During Airborne Icing Encounters, John Michael Maris

Dissertations and Theses

An archival study was conducted to determine the influence of stall warning system performance on aircrew decision-making outcomes during airborne icing encounters. A Conservative Icing Response Bias (CIRB) model was developed to explain the historical variability in aircrew performance in the face of airframe icing. The model combined Bayes’ Theorem with Signal Detection Theory (SDT) concepts to yield testable predictions that were evaluated using a Binary Logistic Regression (BLR) multivariate technique applied to two archives: the NASA Aviation Safety Reporting System (ASRS) incident database, and the National Transportation Safety Board (NTSB) accident databases, both covering the period January 1, 1988 ...


Integration Of Military Unmanned Aerial Systems (Uas) Into The Us National Airspace System: The Relationship Between Uas Accidents And Safety Concerns, Omar J. Hamilton, Timm J. Bliss, Chad Depperschmidt 2017 Oklahoma State University

Integration Of Military Unmanned Aerial Systems (Uas) Into The Us National Airspace System: The Relationship Between Uas Accidents And Safety Concerns, Omar J. Hamilton, Timm J. Bliss, Chad Depperschmidt

International Journal of Aviation, Aeronautics, and Aerospace

The purpose of this study was to discover if a relationship existed between the most common safety concerns and the most common UAS accidents with regards to the integration of military unmanned aerial systems (UAS) into the National Airspace System (NAS). This study examined the most common causes of UAS accidents over a five-year period, the level of safety concerns and common concerns from UAS military pilots and sensor operators. The quantitative data was derived from the Air Force, Navy and Army Safety Offices, while the qualitative data was derived from an online questionnaire and follow-up interviews of US Air ...


Integrating Fatigue Management With Safety Management Systems For Commercial Flightcrew Operations, Arnold W. Starr Jr. 2017 Embry-Riddle Aeronautical University

Integrating Fatigue Management With Safety Management Systems For Commercial Flightcrew Operations, Arnold W. Starr Jr.

International Journal of Aviation, Aeronautics, and Aerospace

Fatigue remains a significant hazard in commercial aviation and has been a major concern among all stakeholders for decades. This review of the literature explores the current prescriptive structure of the regulatory environment (Part 117) and its effect on fatigue management. To illustrate the impact of fatigue on flight operations, this article includes a brief analysis of two National Transportation Safety Board (NTSB) accident reports where fatigue was indicated as a factor. Current research in fatigue management and efforts by the Federal Aviation Administration point to the benefits of using a Safety Management Systems (SMS) methodology to manage fatigue. Using ...


Estimating Airport Operations At General Aviation Airports Using The Faa Npias Airport Categories, Mary E. Johnson, Yue Gu 2017 Purdue University

Estimating Airport Operations At General Aviation Airports Using The Faa Npias Airport Categories, Mary E. Johnson, Yue Gu

International Journal of Aviation, Aeronautics, and Aerospace

The number of annual aircraft operations (take-offs and landings) is a significant concern to both airport owners and operators and to governmental agencies because operations data are one of the most important criteria used for determining future investments in airports. However, estimating the number of aircraft operations at non-towered general aviation airports is challenging work due to the lack of counts from air traffic control towers or useful estimates developed using models. Previous work in estimating annual aircraft operations has resulted in models and sampling methods that are imprecise or difficult to use. In 2014, new classification categories of 2 ...


Impact Of Us Low Cost Carriers Entrance To The Airline Market In Colombia, South America, Carolina Anderson, Tamilla Curtis, Robert F. Moss, MaryJo O. Smith, Gerson Mey 2017 Embry-Riddle Aeronautical University – Daytona Beach

Impact Of Us Low Cost Carriers Entrance To The Airline Market In Colombia, South America, Carolina Anderson, Tamilla Curtis, Robert F. Moss, Maryjo O. Smith, Gerson Mey

International Journal of Aviation, Aeronautics, and Aerospace

This study researched the impact of US low cost carriers’ entrance to the airline market in Colombia, South America. The study analyzed the overall market share between Florida and Colombia after U.S. low cost carriers entered the market and finds that the market share for the Colombian flag carrier Avianca and U.S. legacy carrier American Airlines, who used to dominate this market, has decreased; however, the total passenger demand has increased. This increase in passenger demand can be attributed in part to U.S. low cost carriers opening new city pairs and allowing passengers to fly direct to ...


Exploration Of A Confidence-Based Assessment Tool Within An Aviation Training Program, Paul F. Novacek Ph.D. 2017 FlightSafety International

Exploration Of A Confidence-Based Assessment Tool Within An Aviation Training Program, Paul F. Novacek Ph.D.

Journal of Aviation/Aerospace Education & Research

Traditional use of multiple-choice questions reward a student for guessing. This technique encourages rote memorization of questions to pass a lengthy exam, and does not promote comprehensive understanding or subject correlation. In an effort to identify guessing on answers during an exam within a safety-critical aviation pilot training course, a qualitative research study was undertaken that introduced a confidence-based element to the end-of-ground-school exam. Confidence-based assessments consist of students’ self-reported level of certainty in their responses, indicating which answers they believe are correct while also indicating how confident they feel with their selections. The research goals were to clearly identify ...


Long And Short-Range Air Navigation On Spherical Earth, Nihad E. Daidzic 2017 AAR Aerospace Consulting, LLC

Long And Short-Range Air Navigation On Spherical Earth, Nihad E. Daidzic

International Journal of Aviation, Aeronautics, and Aerospace

Global range air navigation implies non-stop flight between any two airports on Earth. Such effort would require airplanes with the operational air range of at least 12,500 NM which is about 40-60% longer than anything existing in commercial air transport today. Air transportation economy requires flying shortest distance, which in the case of spherical Earth are Orthodrome arcs. Rhumb-line navigation has little practical use in long-range flights, but has been presented for historical reasons and for comparison. Database of about 50 major international airports from every corner of the world has been designed and used in testing and route ...


Using Conversation Analysis In Data-Driven Aviation Training With Large-Scale Qualitative Datasets, William A. Tuccio Ph.D., Maurice Nevile Ph.D. 2017 National Transportation Safety Board

Using Conversation Analysis In Data-Driven Aviation Training With Large-Scale Qualitative Datasets, William A. Tuccio Ph.D., Maurice Nevile Ph.D.

Journal of Aviation/Aerospace Education & Research

This paper contributes to a growing body of work related to the Conversation Analytic Role-play Method (CARM) by studying the primary flight instruction environment to create training interventions related to radio communications and flight instruction practices. Framed in the context of conversation analysis, an approach to the detailed analysis of naturally occurring interaction, the large-scale, long-duration qualitative audio/video data collection and coding methodology is discussed, followed by trends identified in the ongoing study. The concept of CARM “trainables” are discussed with examples. The study shows that large-scale qualitative datasets may be leveraged to produce valuable data-driven training interventions.


The Effects Of The January 2016 Utc Offset Anomaly On Gps Clocks Monitored At Nist, Jian Yao 2016 University of Colorado Boulder

The Effects Of The January 2016 Utc Offset Anomaly On Gps Clocks Monitored At Nist, Jian Yao

Jian Yao

No abstract provided.


Pilot Source Study 2015: An Analysis Of Far Part 121 Pilots Hired After Public Law 111-216—Their Backgrounds And Subsequent Successes In Us Regional Airline Training And Operating Experience, Guy Smith, Elizabeth Bjerke, MaryJo Smith, Cody Christensen, Thomas Carney, Paul Craig, Mary Niemczyk 2016 Embry Riddle Aeronautical University

Pilot Source Study 2015: An Analysis Of Far Part 121 Pilots Hired After Public Law 111-216—Their Backgrounds And Subsequent Successes In Us Regional Airline Training And Operating Experience, Guy Smith, Elizabeth Bjerke, Maryjo Smith, Cody Christensen, Thomas Carney, Paul Craig, Mary Niemczyk

Journal of Aviation Technology and Engineering

This report is the second in a series entitled Pilot Source Study 2015. Public Law 111-216 (Airline Safety and Federal Aviation Administration Extension Act of 2010) and the subsequent FAA regulation changed pilot hiring for US air carriers operating under 14 CFR Part 121. The Pilot Source Study 2015 was designed to determine the effect of Public Law 111-216 on US regional airlines after its effective date, August 1, 2013. The study collected records for 6,734 FAR Part 121 regional airline pilots to determine the effect of pilots’ backgrounds on their performance in regional airline training and operations. A ...


Luggage Handling In Airport Logistics, Rachel Wiley 2016 Iowa State University

Luggage Handling In Airport Logistics, Rachel Wiley

Honors Projects and Posters

Luggage handling is an extremely complex system that involves many moving parts at once. Due to the importance of a well-functioning baggage handling system in airports, an analysis has been completed on the current system and its drawbacks. The research is limited to the standard baggage handling system and baggage screening technology currently used in airports. Conclusions have been drawn from past research studies that have been done in major airports, as well as research on better technology the industry is currently working to implement. It has been determined that there are millions of bags mishandled each year, costing the ...


Examining Time To Evacuate Dynamically Activated Aircraft Hazard Areas, Zheng Tao, Granghuai Wang, Ashley G. Williams, Jon L. Semanek, Jonathan L. Schwartz 2016 The MITRE Corporation

Examining Time To Evacuate Dynamically Activated Aircraft Hazard Areas, Zheng Tao, Granghuai Wang, Ashley G. Williams, Jon L. Semanek, Jonathan L. Schwartz

Space Traffic Management Conference

The growth in launch and reentry operations in the National Airspace System (NAS) presents the Federal Aviation Administration (FAA) with the challenge of integrating them more efficiently while also minimizing effects on other NAS users and maintaining safety. Currently, to maintain safety and account for unforeseen events such as vehicle breakup, the FAA segregates large amounts of airspace, called Aircraft Hazard Areas (AHAs), from traditional NAS users during launch and reentry operations. In order to minimize effects on NAS users, some AHAs during reentry are dynamically activated only if an unexpected event occurs. If a dynamic AHA is activated, then ...


Accident Rates, Phase Of Operations, And Injury Severity For Solo Students In Pursuit Of Private Pilot Certification (1994–2013), Douglas Boyd, Peter Dittmer 2016 University of Texas Health Science Center at Houston

Accident Rates, Phase Of Operations, And Injury Severity For Solo Students In Pursuit Of Private Pilot Certification (1994–2013), Douglas Boyd, Peter Dittmer

Journal of Aviation Technology and Engineering

Flight training accidents constitute 14% of general aviation accidents. Herein we determined the rates, injury severity, and phase of flight for primary student solo accidents/incidents (mishaps) in Cessna 172 aircraft.

Mishaps over the period spanning 1994–2013 were identified from the NTSB database. Student population data were from the FAA. Statistics employed proportion tests, Poisson distribution, and Mann-Whitney tests.

Across the study period, 598 mishaps were identified. While the mishap rate increased nearly two-fold between 1994/1997 and 2002/ 2005, a 35% decline was evident thereafter. Nevertheless, no statistical difference in mishap rates was evident between the initial and ...


High Altitude Ballooning And The Effect Of Temperature On Balloon Ascent Rate, Christopher D. Young 2016 Hopkinsville Community College

High Altitude Ballooning And The Effect Of Temperature On Balloon Ascent Rate, Christopher D. Young

Posters-at-the-Capitol

Abstract

High Altitude Ballooning and The Effect of Temperature on Balloon Ascent Rate.

Christopher Young

High-altitude balloons are unmanned balloons, usually filled with helium or hydrogen, that after release, ascend into the stratosphere, generally attaining an altitude of between 60,000 to 100,000 feet. The balloon payload includes scientific experiments on organisms, equipment to study radiation, temperature, ultra- violet radiation, and pressure. The balloon flights and experiments are logged by means of video devices and are tracked from the ground through multiple tracking devices. The effect of temperature on the ascent rate of the balloon could change how the ...


Concorde – 20th Century Icon, John Hutchinson 2016 Embry-Riddle Aeronautical University

Concorde – 20th Century Icon, John Hutchinson

ERAU Prescott Aviation History Program

Europe to the U.S. in less than 3 ½ hours at 60,000 feet and Mach 2! The Concorde was one of world’s most recognized aircraft and a technological marvel. Learn what it was like to fly it from a pilot who did so for 15 years. Capt. Hutchinson was a Concorde route check airman and a British Airways pilot selector. He also worked with BBC television as a presenter of Airshow programmes and helped promote the Concorde/QE2 travel packages. What a way to travel!


Applying The Technology Acceptance Model To Understand Aviation Students’ Perceptions Toward Augmented Reality Maintenance Training Instruction, Yu Wang, Amadou Anne, Tim Ropp 2016 Purdue University

Applying The Technology Acceptance Model To Understand Aviation Students’ Perceptions Toward Augmented Reality Maintenance Training Instruction, Yu Wang, Amadou Anne, Tim Ropp

International Journal of Aviation, Aeronautics, and Aerospace

Augmented Reality (AR) Technology, since its inception, has been enhanced significantly by software and hardware developers, and has been widely utilized in various fields such as manufacturing, entertainment, architecture, commerce and education. In recent years, maintenance instructions developed on the basis of AR technology have demonstrated their potential to positively impact maintenance training and technical tasks in aviation. Features of AR maintenance instructions include interactive content, user-friendly operation interface, enhanced visualization and real-time data feeds. The researchers conducted a case study of forty-one aviation maintenance students at a Midwestern university. The purpose of this study was twofold: to evaluate the ...


Designing Fixed-Base Operations Utilizing Systems Engineering Principles, Ross L. Stephenson Jr., David A. Carroll 2016 Embry-Riddle Aeronautical University Worldwide

Designing Fixed-Base Operations Utilizing Systems Engineering Principles, Ross L. Stephenson Jr., David A. Carroll

Journal of Aviation Technology and Engineering

There are currently over 3,200 fixed-base operations (FBOs) conducting business in the United States attempting to meet the demands of FAA Part 91, Part 135, and a limited number of Part 121 operations. With the US economy slowly climbing out of the trough during 2013, the utilization of fixed-base operations has become more attractive and economical to the corporate business and the affluent recreational traveler. Despite the increased flight activities utilizing the services of fixed-base operators, keen competition, rising fuel cost, and the economies of scale recognized by large FBO franchises significantly erode the profitability and sustainability of smaller ...


Digital Commons powered by bepress