Subjects -> ENGINEERING (Total: 2688 journals)
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ENGINEERING (1325 journals)            First | 1 2 3 4 5 6 7 | Last

Showing 601 - 800 of 1205 Journals sorted alphabetically
International Journal of Quality Assurance in Engineering and Technology Education     Full-text available via subscription   (Followers: 3)
International Journal of Quality Engineering and Technology     Hybrid Journal   (Followers: 4)
International Journal of Quantum Information     Hybrid Journal   (Followers: 6)
International Journal of Rapid Manufacturing     Hybrid Journal   (Followers: 3)
International Journal of Recent Contributions from Engineering, Science & IT     Open Access  
International Journal of Reliability, Quality and Safety Engineering     Hybrid Journal   (Followers: 14)
International Journal of Renewable Energy Technology     Hybrid Journal   (Followers: 8)
International Journal of Robust and Nonlinear Control     Hybrid Journal   (Followers: 10)
International Journal of Science and Innovative Technology     Open Access  
International Journal of Science Engineering and Advance Technology     Open Access  
International Journal of Sediment Research     Full-text available via subscription   (Followers: 2)
International Journal of Self-Propagating High-Temperature Synthesis     Hybrid Journal  
International Journal of Service Science, Management, Engineering, and Technology     Full-text available via subscription   (Followers: 2)
International Journal of Signal and Imaging Systems Engineering     Hybrid Journal  
International Journal of Six Sigma and Competitive Advantage     Hybrid Journal   (Followers: 4)
International Journal of Social Robotics     Hybrid Journal   (Followers: 3)
International Journal of Software Engineering and Knowledge Engineering     Hybrid Journal   (Followers: 6)
International Journal of Space Science and Engineering     Hybrid Journal   (Followers: 13)
International Journal of Speech Technology     Hybrid Journal   (Followers: 7)
International Journal of Spray and Combustion Dynamics     Full-text available via subscription   (Followers: 15)
International Journal of Student Project Reporting     Hybrid Journal   (Followers: 4)
International Journal of Surface Engineering and Interdisciplinary Materials Science     Full-text available via subscription   (Followers: 1)
International Journal of Surface Science and Engineering     Hybrid Journal   (Followers: 6)
International Journal of Sustainable Engineering     Hybrid Journal   (Followers: 4)
International Journal of Sustainable Lighting     Open Access  
International Journal of Sustainable Manufacturing     Hybrid Journal   (Followers: 4)
International Journal of Systems and Service-Oriented Engineering     Full-text available via subscription  
International Journal of Systems Assurance Engineering and Management     Hybrid Journal  
International Journal of Systems, Control and Communications     Hybrid Journal   (Followers: 6)
International Journal of Technoethics     Full-text available via subscription   (Followers: 2)
International Journal of Technology Management and Sustainable Development     Hybrid Journal   (Followers: 1)
International Journal of Technology Policy and Law     Hybrid Journal   (Followers: 6)
International Journal of Telemedicine and Applications     Open Access   (Followers: 4)
International Journal of Thermal Sciences     Hybrid Journal   (Followers: 18)
International Journal of Thermodynamics     Open Access   (Followers: 15)
International Journal of Transportation Engineering     Open Access   (Followers: 2)
International Journal of Turbomachinery, Propulsion and Power     Open Access   (Followers: 23)
International Journal of Ultra Wideband Communications and Systems     Hybrid Journal  
International Journal of Vehicle Autonomous Systems     Hybrid Journal  
International Journal of Vehicle Design     Hybrid Journal   (Followers: 6)
International Journal of Vehicle Information and Communication Systems     Hybrid Journal   (Followers: 1)
International Journal of Vehicle Noise and Vibration     Hybrid Journal   (Followers: 6)
International Journal of Vehicle Safety     Hybrid Journal   (Followers: 3)
International Journal of Virtual Technology and Multimedia     Hybrid Journal   (Followers: 2)
International Journal of Wavelets, Multiresolution and Information Processing     Hybrid Journal  
International Journal on Artificial Intelligence Tools     Hybrid Journal   (Followers: 9)
International Journal on Smart Sensing and Intelligent Systems     Open Access  
International Nano Letters     Open Access   (Followers: 6)
International Review of Applied Sciences and Engineering     Full-text available via subscription  
International Scholarly Research Notices     Open Access   (Followers: 121)
International Scientific and Vocational Studies Journal     Open Access  
International Scientific Journal of Engineering and Technology (ISJET)     Open Access  
Inventions     Open Access  
Inventum     Open Access  
Inverse Problems in Science and Engineering     Hybrid Journal   (Followers: 3)
Investiga : TEC     Open Access  
Ionics     Hybrid Journal   (Followers: 2)
IPTEK The Journal for Technology and Science     Open Access  
Iranian Journal of Optimization     Open Access   (Followers: 2)
Iranian Journal of Science and Technology, Transactions A : Science     Hybrid Journal  
IRBM News     Full-text available via subscription  
Ironmaking & Steelmaking     Hybrid Journal   (Followers: 4)
ISA Transactions     Full-text available via subscription  
ISSS Journal of Micro and Smart Systems     Hybrid Journal   (Followers: 3)
IT Professional     Full-text available via subscription   (Followers: 24)
Iteckne     Open Access  
J-ENSITEC : Journal Of Engineering and Sustainable Technology     Open Access   (Followers: 4)
Johnson Matthey Technology Review     Open Access  
Journal of Advanced College of Engineering and Management     Open Access  
Journal of Advanced Joining Processes     Open Access  
Journal of Advanced Manufacturing Systems     Hybrid Journal   (Followers: 5)
Journal of Aerodynamics     Open Access   (Followers: 27)
Journal of Aerosol Science     Hybrid Journal   (Followers: 7)
Journal of Aerospace Engineering     Full-text available via subscription   (Followers: 66)
Journal of Alloys and Compounds     Hybrid Journal   (Followers: 16)
Journal of Analytical and Applied Pyrolysis     Hybrid Journal   (Followers: 5)
Journal of Analytical Science & Technology     Open Access   (Followers: 4)
Journal of Analytical Sciences, Methods and Instrumentation     Open Access   (Followers: 4)
Journal of Applied Engineering Sciences     Open Access  
Journal of Applied Physics     Hybrid Journal   (Followers: 69)
Journal of Applied Research and Technology     Open Access  
Journal of Applied Science and Technology     Full-text available via subscription   (Followers: 1)
Journal of Applied Sciences     Open Access   (Followers: 4)
Journal of Architectural and Engineering Research     Open Access   (Followers: 3)
Journal of Architectural Engineering     Full-text available via subscription   (Followers: 4)
Journal of Automation and Control     Open Access   (Followers: 9)
Journal of Aviation Technology and Engineering     Open Access   (Followers: 10)
Journal of Biological Dynamics     Open Access   (Followers: 1)
Journal of Biomedical Science     Open Access   (Followers: 4)
Journal of Biomolecular NMR     Hybrid Journal   (Followers: 6)
Journal of Biosciences     Open Access   (Followers: 1)
Journal of Building Pathology and Rehabilitation     Hybrid Journal  
Journal of Catalysis     Hybrid Journal   (Followers: 11)
Journal of Catalyst & Catalysis     Full-text available via subscription   (Followers: 2)
Journal of Central South University     Hybrid Journal   (Followers: 1)
Journal of Chemical and Petroleum Engineering     Open Access   (Followers: 1)
Journal of China Coal Society     Open Access  
Journal of China Universities of Posts and Telecommunications     Full-text available via subscription  
Journal of Cleaner Production     Hybrid Journal   (Followers: 27)
Journal of Coastal and Riverine Flood Risk (JCRFR)     Open Access   (Followers: 1)
Journal of Cold Regions Engineering     Full-text available via subscription   (Followers: 3)
Journal of Combinatorial Designs     Hybrid Journal   (Followers: 4)
Journal of Combustion     Open Access   (Followers: 40)
Journal of Computational and Nonlinear Dynamics     Full-text available via subscription   (Followers: 6)
Journal of Computational and Theoretical Nanoscience     Full-text available via subscription  
Journal of Computational Biology     Hybrid Journal   (Followers: 9)
Journal of Computational Design and Engineering     Open Access   (Followers: 1)
Journal of Computational Electronics     Hybrid Journal   (Followers: 5)
Journal of Computational Multiphase Flows     Open Access   (Followers: 1)
Journal of Computing and Information Science in Engineering     Full-text available via subscription   (Followers: 1)
Journal of Coupled Systems and Multiscale Dynamics     Full-text available via subscription  
Journal of Dairy Science     Open Access   (Followers: 12)
Journal of Delta Urbanism     Open Access   (Followers: 2)
Journal of Display Technology     Hybrid Journal   (Followers: 3)
Journal of Dynamic Systems, Measurement, and Control     Full-text available via subscription   (Followers: 14)
Journal of Dynamical and Control Systems     Hybrid Journal   (Followers: 7)
Journal of Earthquake Engineering     Hybrid Journal   (Followers: 14)
Journal of Elasticity     Hybrid Journal   (Followers: 7)
Journal of Electroceramics     Hybrid Journal  
Journal of Electromagnetic Waves and Applications     Hybrid Journal   (Followers: 10)
Journal of Electronic Testing     Hybrid Journal   (Followers: 2)
Journal of Electronics Cooling and Thermal Control     Open Access   (Followers: 9)
Journal of Electrostatics     Hybrid Journal   (Followers: 2)
Journal of Energy Engineering     Full-text available via subscription   (Followers: 7)
Journal of Energy Resources Technology     Full-text available via subscription   (Followers: 4)
Journal of Engineering     Open Access  
Journal of Engineering     Open Access   (Followers: 1)
Journal of Engineering and Applied Science     Open Access  
Journal of Engineering and Technological Sciences     Open Access   (Followers: 2)
Journal of Engineering Design     Hybrid Journal   (Followers: 17)
Journal of Engineering Education     Hybrid Journal   (Followers: 7)
Journal of Engineering for Gas Turbines and Power     Full-text available via subscription   (Followers: 15)
Journal of Engineering Mathematics     Hybrid Journal   (Followers: 2)
Journal of Engineering Mechanics     Full-text available via subscription   (Followers: 16)
Journal of Engineering Physics and Thermophysics     Hybrid Journal   (Followers: 2)
Journal of Engineering Research     Open Access   (Followers: 1)
Journal of Engineering Research and Reports     Open Access  
Journal of Engineering Technology and Applied Sciences     Open Access  
Journal of Engineering Thermophysics     Hybrid Journal   (Followers: 4)
Journal of Engineering, Design and Technology     Hybrid Journal   (Followers: 17)
Journal of Engineering, Project, and Production Management     Open Access  
Journal of Environmental & Engineering Geophysics     Hybrid Journal   (Followers: 2)
Journal of Environmental Engineering     Full-text available via subscription   (Followers: 49)
Journal of Environmental Engineering and Landscape Management     Open Access   (Followers: 8)
Journal of Environmental Engineering and Science     Hybrid Journal   (Followers: 2)
Journal of Experimental Nanoscience     Hybrid Journal  
Journal of Fire Sciences     Hybrid Journal   (Followers: 6)
Journal of Flood Risk Management     Hybrid Journal   (Followers: 14)
Journal of Flow Control, Measurement & Visualization     Open Access   (Followers: 1)
Journal of Fluids Engineering     Full-text available via subscription   (Followers: 30)
Journal of Fourier Analysis and Applications     Hybrid Journal   (Followers: 3)
Journal of Fuel Cell Science and Technology     Full-text available via subscription   (Followers: 2)
Journal of Functional Analysis     Full-text available via subscription   (Followers: 3)
Journal of Fundamental and Applied Sciences     Open Access  
Journal of Geological Research     Open Access   (Followers: 1)
Journal of Geotechnical and Geoenvironmental Engineering     Full-text available via subscription   (Followers: 30)
Journal of Geotechnical Engineering     Full-text available via subscription   (Followers: 4)
Journal of Geovisualization and Spatial Analysis     Hybrid Journal  
Journal of Global Optimization     Hybrid Journal   (Followers: 6)
Journal of Graduate School of Natural and Applied Sciences of Mehmet Akif Ersoy University     Open Access  
Journal of Hazardous Materials Advances     Open Access  
Journal of Healthcare Engineering     Open Access   (Followers: 3)
Journal of Heat Transfer     Full-text available via subscription   (Followers: 66)
Journal of Humanitarian Engineering     Open Access   (Followers: 1)
Journal of Hydraulic Engineering     Full-text available via subscription   (Followers: 27)
Journal of Hyperspectral Remote Sensing     Open Access   (Followers: 23)
Journal of Imaging     Open Access   (Followers: 3)
Journal of Industrial and Production Engineering     Hybrid Journal   (Followers: 4)
Journal of Industrial Engineering and Management     Open Access   (Followers: 5)
Journal of Industrial Safety Engineering     Full-text available via subscription   (Followers: 6)
Journal of Inequalities and Applications     Open Access  
Journal of Infrared, Millimeter and Terahertz Waves     Hybrid Journal   (Followers: 3)
Journal of Infrastructure Preservation and Resilience     Open Access   (Followers: 1)
Journal of Institute of Science and Technology     Open Access  
Journal of Intelligent and Connected Vehicles     Open Access   (Followers: 1)
Journal of Intelligent Systems : Theory and Applications     Open Access  
Journal of International Maritime Safety, Environmental Affairs, and Shipping     Open Access   (Followers: 1)
Journal of Iron and Steel Research International     Hybrid Journal   (Followers: 7)
Journal of Irrigation and Drainage Engineering     Full-text available via subscription   (Followers: 24)
Journal of King Saud University - Engineering Sciences     Open Access  
Journal of KONBiN     Open Access   (Followers: 4)
Journal of Liquid Chromatography & Related Technologies     Hybrid Journal   (Followers: 7)
Journal of Management in Engineering     Full-text available via subscription   (Followers: 9)
Journal of Manufacturing Science and Engineering     Full-text available via subscription   (Followers: 32)
Journal of Manufacturing Systems     Full-text available via subscription   (Followers: 3)
Journal of Manufacturing Technology Management     Hybrid Journal   (Followers: 3)
Journal of Mechanical Design and Testing     Open Access   (Followers: 4)
Journal of Mechatronics     Full-text available via subscription   (Followers: 3)
Journal of Mega Infrastructure & Sustainable Development     Hybrid Journal  
Journal of Metallurgy     Open Access   (Followers: 8)
Journal of Mining Institute     Open Access  
Journal of Motor Behavior     Hybrid Journal   (Followers: 8)
Journal of Multivariate Analysis     Hybrid Journal   (Followers: 15)
Journal of Nanoengineering and Nanomanufacturing     Full-text available via subscription  
Journal of Nanoparticle Research     Hybrid Journal   (Followers: 3)
Journal of Nanoscience     Open Access  
Journal of Nanoscience and Nanotechnology     Full-text available via subscription   (Followers: 8)
Journal of NanoScience, NanoEngineering & Applications     Full-text available via subscription  
Journal of Nanotechnology     Open Access   (Followers: 10)
Journal of Nanotechnology in Engineering and Medicine     Full-text available via subscription   (Followers: 4)

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Similar Journals
Journal Cover
Journal of Aviation Technology and Engineering
Number of Followers: 10  

  This is an Open Access Journal Open Access journal
ISSN (Online) 2159-6670
Published by Purdue University Homepage  [13 journals]
  • Qualitative Findings from the Practice of Outsourcing by the Aviation
           Technical Services Industry in Northern Europe: Comparison With Literature
           

    • Authors: Jukka Holkeri
      Abstract: The outsourcing of maintenance and other technical services is a trend in both military and civil aviation. This article uses input from real outsourcing cases in Northern Europe to verify previous literature findings and to introduce new viewpoints to fill an identified research gap.Interviews of deeply involved individuals from six cases were selected and analyzed using the Delphi method. The findings were synthesized using a framework that articulates contexts, observed outcomes, and generative mechanisms.Many of the key literature findings were verified by this case analysis, but there were also some contradictions and new observations that had not been identified in the literature.The chosen cases represent three aviation industry segments and a selected geographic area. Results may differ in other segments and geographies even though aviation is regarded as an international industry. The methodology applied in this paper could be replicated in other segments and areas to broaden the scope of research.Improving understanding of the underlying processes in aviation outsourcing activities should improve efficiency and even flight safety.This research provides a comparison between empirical cases and more academic literature and shows the clear contribution of deeper analysis to research in this field. There also seems to be a need to continue case studies to achieve a more complete picture of the subject matter.
      PubDate: Mon, 24 Jan 2022 07:12:03 PST
       
  • Assessing Unstabilized Approaches: A Phenomenology Study of the Risk
           Perceptions and Decision-Making Thought Process of Collegiate Aviation
           Pilots

    • Authors: Shlok Misra et al.
      Abstract: The Federal Aviation Administration emphasized the need to focus on and develop human factors training as early as 1993 in official Human Factors Policy Order 9550.8. The purpose of this study was to conduct a detailed qualitative phenomenological analysis of the risk perceptions and decision-making model of collegiate aviation pilots for unstabilized approaches. The study focused on understanding how collegiate aviation pilots perceive unstable approaches, the risk associated with unstable approaches, and the factors that trigger pilots to execute a go-around. The International Air Transportation Association warns that continuing an unstabilized approach can lead to runway excursions, hard landings causing damage to aircraft, or even controlled flight into terrain. The theoretical framework guiding this study was the risk compensation theory. The researchers recruited 15 participants through purposeful sampling for a phenomenological analysis using semi-structured interviews and a short questionnaire. A phenomenological methodology enabled the researchers to bring forth into consciousness preconceived ideas about unstabilized approaches and then set them aside. To address the research questions, information collected from individual interviews was analyzed and triangulated using a qualitative questionnaire. Three major themes emerged from the data: (a) effect of internal perceptions, (b) external pressures, and (c) unique worldviews. The findings validated the risk compensation theory’s principles by exposing the influence of mental and environmental factors impairing participants’ judgment of an unstabilized approach. Further research is required for developing standardized and objective stabilization criteria that the general aviation community can accept.
      PubDate: Thu, 13 Jan 2022 11:24:00 PST
       
  • Benchmarking Global Carrier Status in the Airline Industry

    • Authors: Darren Ellis et al.
      Abstract: Over the past decade or so and through the onset of the COVID-19 pandemic, a number of airlines have risen to global prominence in Asia (especially China), the Middle East, Latin America, Africa, and elsewhere. As each develops, many industry observers are questioning the extent to which these airlines will rival current industry heavyweights around the world. This paper aims to provide a basis for assessing what constitutes a major global carrier in the airline industry, including the likelihood of being so in the foreseeable future. Three key metrics are employed to gauge the global reach of an airline and its corresponding major global carrier status and rank: wide-bodied fleet size, the number of international destinations flown to, and continents served (squared for adequate amplification). Data are sourced from the Centre for Aviation (CAPA) airline database. The paper concludes that major global carrier status for an airline is best viewed in relation to key competitors including the ranking location of those directly above and below any given airline. This ranking approach is therefore about insights generated and is not premised on precise locations on a leader board.
      PubDate: Thu, 13 Jan 2022 11:23:50 PST
       
  • Eye-Gaze-Controlled HMDS and MFD for Military Aircraft

    • Authors: LRD Murthy et al.
      Abstract: Eye-gaze-controlled interfaces allow the direct manipulation of a graphical user interface by looking at it. This technology has great potential in military aviation, in particular, operating different displays in situations where pilots’ hands are occupied with flying the aircraft. This paper reports studies on analyzing the accuracy of eye-gaze-controlled interfaces inside aircraft undertaking representative flying missions. We report that using eye-gaze-controlled interfaces, pilots can undertake representative pointing and selection tasks at less than two seconds on average in a transport aircraft. Further, we analyzed the accuracy of eye-gaze-tracking glasses under various G load factors and analyzed the failure modes. We observed that the accuracy of the eye-tracking glasses is less than 5˚of visual angle up to+3G, although less accurate at 21G and +5G. We also found that existing eye tracker fails to track eyes under higher external illumination and needs to have a larger vertical field of view than the presently available systems. We used this analysis to develop eye-gaze trackers for multi-functional displays and head-mounted display system (HMDS). We obtained significant reduction in pointing and selection times using our proposed HMDS compared to a traditional thumb-stick-based target designation system.
      PubDate: Thu, 13 Jan 2022 11:23:38 PST
       
  • Characteristics of Unmanned Aircraft System (UAS) Sightings and Airport
           Safety

    • Authors: Cheng Wang et al.
      Abstract: This paper presents the characteristics of unmanned aircraft system (UAS) sightings and discusses these characteristics in the context of airport safety using airport operational data. An unmanned aircraft in the vicinity of a commercial airport may be a potential threat to aircraft operations, and may result in operational and economic impacts if it causes an airport delay or shutdown. To ensure a record of UAS activity, the Federal Aviation Administration collects and publishes a UAS Sightings Report. This study analyzed UAS sightings and found that they vary by time of year and time of day, with more sightings in the summer and during the daytime. While all kinds of aircraft may be affected, pilots of general aviation aircraft report more UAS sightings, although overall only 3.3 percent of sightings required the pilot to take evasive action. Only 9.8 percent of UAS sightings occurred at or below 400 feet and 57 percent occurred within five miles of an airport, and sightings are more likely to be reported close to large and medium hub airports. States with a large population (such as California and Florida) and airports in big cities have more UAS sightings. The airports with the most UAS sightings are LaGuardia (LGA), Los Angeles (LAX), John F. Kennedy (JFK), and O’Hare (ORD).
      PubDate: Thu, 13 Jan 2022 11:23:29 PST
       
  • Female Relief Systems in U.S. Military Fighter Ejection Seat Aircraft

    • Authors: Marian C. Schultz et al.
      Abstract: In early aircraft, the amount of fuel the aircraft could carry usually determined how long it could stay in flight. Today, with aircraft being able to air refuel, the time they are able to stay aloft is based more on human needs, one being waste management. Voiding urine in a single-seat ejection seat aircraft has been an issue for male pilots in the past, but with the increasing numbers of female pilots in single-seat aircraft, finding a solution has intensified. This paper reviews the various methods that are available for both male and female pilots, including the newest method which allows the pilot to vacuum urine into a containment vessel. Future improvements in waste management will continue to progress with time and technology. While these may involve improving ways to urinate in the cockpit, they could also involve ways to perhaps slow the production of urine by the body. But for the present, pilots will have to select from a pool of the devices currently available.
      PubDate: Thu, 13 Jan 2022 11:23:19 PST
       
  • Fatigue and Its Management in the Aviation Industry, with Special
           Reference to Pilots

    • Authors: Rajee Olaganathan et al.
      Abstract: Abstract Fatigue is a significant contributing factor that reduces human ability and leads to accidents and threatens the safety of aircraft and human lives. Approximately 70% of fatal accidents that occur in commercial aviation operations are due to human factors. More specifically, crew fatigue contributes to nearly 15 to 20% of the accidents (Akerstedt, 2000). These accidents and incidents are associated with pilot fatigue because of the long duty periods, disruption of circadian rhythms, and inadequate sleep that are common among both commercial and military pilots. Though fatigue is seen in all the disciplines associated with the aviation industry, this paper will discuss only pilot fatigue. Based on the literature examined, this paper first defines fatigue, examines the significance of the problem, discusses what is fatigue, its types and causes, discusses fatigue-related accidents and incidents, examines fatigue in different flight operations and its impact on the wellbeing of pilots, investigates the in-flight and pre-/post-flight countermeasures (both pharmacological and non-pharmacological methods) practiced at present, and discusses the fatigue risk management system (FRMS)—in this it defines FRMS, briefly discusses its history, describes the organizational structure of FRMS, its process, and its operation in the aviation industry, merits and demerits of FRMS, and its future applications. The paper finally concludes with some recommendations for future research/study in this discipline.
      PubDate: Wed, 02 Jun 2021 06:32:13 PDT
       
  • Service Quality and Passenger Satisfaction in Air Transportation in a
           Developing Economy: Evidence from Nigeria

    • Authors: Obioma R. Nwaogbe et al.
      Abstract: This study investigates the quality of service provided for air travel in Nigeria and the level of satisfaction of passengers with the service encountered. It does so by focusing on both the airports and the airlines as service providers. In that way, the study captures much of the effects of the organizational culture, employee behavior, and general norms which influence passenger attitudes. The SERVQUAL model was used in measuring the five dimensions of service. Domestic travel only was studied, with data obtained from well-structured questionnaires to evaluate perception–expectation gaps in airports as well as in airlines. The overall gap score of the Nigerian airports shows an average airport quality of service with a value of 21.8179. This reveals that the perceived service quality is less than passengers’ expectations in Nigerian airport service operations. In the same vein, the gap score of the Nigerian airlines shows an average airline quality-of-service gap with a value of 21.32, which is generally low. This means that the passengers or customers of the airlines during the response period were expecting more service quality from the airlines in the country. The level of service at Nigerian airports needs to be improved so as to encourage passengers to use the airports and as well reduce many queues at baggage collection areas. The air travel industry is currently challenged in a recessed economy resulting in lower service standards, lower patronage, increased missed trips, flight cancellations, passenger complaints, and faltering loyalty. The findings of the study will, therefore, be useful to the managers of airports and airlines, the economic regulator of the aviation industry, and other stakeholders.
      PubDate: Wed, 19 May 2021 06:18:23 PDT
       
  • A Comparison of the Localized Aviation MOS Program (LAMP) and Terminal
           Aerodrome Forecast (TAF) Accuracy for General Aviation

    • Authors: Douglas D. Boyd et al.
      Abstract: Background. For general aviation (GA) pilots, operations in instrument meteorological conditions (IMC) carry an elevated risk of a fatal accident. As to whether a general aviation flight can be safely undertaken, aerodrome-specific forecasts (TAF, LAMP) provide guidance. Although LAMP forecasts are more common for GA-frequented aerodromes, nevertheless, the FAA recommends that for such aerodromes (and for which a TAF is not issued) the airman uses the TAF generated for the geographically closest airport for pre-flight weather evaluation. Herein, for non-TAF-issuing airports, the LAMP (sLAMP) predictive accuracy for visual (VFR) and instrument (IFR) flight rules flight category was determined.Method. sLAMP accuracy was evaluated over 12 months using the fractions of forecasts which were correct or false alarms. Statistical differences employed Chi-Square/Fisher Exact tests.Results. sLAMP forecasts (n=570) across 43 states were accrued. The fraction of correct sLAMP forecasts for VFR (0.53) and IFR (0.68) exceeded (pConclusion. Our findings indicate the forecast superiority of the satellite-LAMP at non-TAF-issuing airports compared with the TAF generated at a proximate aerodrome.Practical Application. For non-TAF-issuing sLAMP airports, these findings argue for greater integration of the latter tool in pre-flight weather briefings for general aviation operations.
      PubDate: Fri, 30 Apr 2021 08:42:03 PDT
       
  • Changing the Process in Educational Field and Air Navigation through
           Advances in Hologram Technology

    • Authors: Camilo Fernandez Sr.
      Abstract: The objective of this piece is to propose reasons that change the way air traffic controllers and others learn and work in air navigation, but also how they can improve workloads, due to the implementation of holographic radar. This research also aims to describe how this could reduce the cognitive load of an operator, thanks to the improvement of visual perspective and capacity of analysis, in order to more easily control an aircraft.Seeing that the visual facilitation is well known, radar is able to represent in three dimensions and in detail that which could not previously be perceived. This makes a substantial difference in the comfort and ease of training new controllers. In conjunction with operators, the objective of this technology is to save both hours and cost of training. This is of tremendous benefit, as some countries spend millions of dollars trying to educate the personnel in charge of air traffic control. In addition, a goal of this technology is the further improvement in air safety in a sector that demands more jobs and more availability to people in the industry, with an increasing number of aircraft in the world. This makes air traffic control one of the more demanding careers in the global arena.
      PubDate: Fri, 09 Apr 2021 08:53:13 PDT
       
  • Design of Rotorcraft Performance-Based Navigation Routes and Procedures:
           Current Challenges and Prospects

    • Authors: Carlos Gonzaga Lopez
      Abstract: Helicopters play a relevant role in society due to their extraordinary versatility. However, they are particularly vulnerable to adverse weather conditions as the majority of operations are carried out under visual flight rules. This is partly due to the shortage of tailored helicopter instrument flight procedures and routes. The emergence of the performance-based navigation concept supported by the latest satellite navigation technologies has opened up new possibilities for rotorcraft operations in the last few years. This paper presents an extensive overview of the state of the art in the design of performance-based navigation routes for helicopters from two main standpoints: instrument flight procedures and route spacing. Apart from summarizing recent and current major initiatives to implement helicopter low-level routes and flight procedures, this paper provides an outlook on the latest advances and ongoing efforts by the International Civil Aviation Organization in the field of helicopter procedure and route design to ensure flyability, obstacle clearance, strategical separation, and segregation of traffic flows. In addition, several gaps in the current design criteria are identified and suggestions for future research and development are outlined.
      PubDate: Fri, 09 Apr 2021 08:53:04 PDT
       
  • Airplane Pitch Response to Rapid Configuration Change: Flight Test and
           Safety Assessment

    • Authors: Ralph Kimberlin et al.
      Abstract: This paper examines airplane response to rapid flap extension on seven general aviation airplanes. The scenario involves a pilot flying in the traffic pattern becoming distracted, abruptly extending flaps while looking outside the airplane, and failing to notice airspeed and pitch-attitude changes. The airplanes tested reached pitch forces of up to 36 lbf, meeting FAA requirements but exceeding the capability of 55% of the population. Flight data showed a pitch-up to more than 30˚ in 5 s after flap extension, causing airspeed to drop below stall speed for four of the airplanes. At traffic pattern altitudes, stalling an airplane can be fatal. The NTSB lists over 1000 accidents caused by loss of control in the traffic pattern between 1982 and 2017. As general aviation airplanes do not carry flight data recorders, it is unknown how many of those accidents may have involved stalls caused by uncommanded response after flap extension. From the data gathered in flight, it seems possible some were. To improve safety, flight training should prepare students to anticipate rapid pitch changes during flap extension and retraction. In addition, airplane developers could interconnect flaps with the elevator, reduce horizontal tail size, or use a T-tail. The FAA should consider reducing the maximum pitch stick and wheel forces in 14 CFR §23.143 to 20 lbf or less.
      PubDate: Tue, 06 Apr 2021 10:04:12 PDT
       
  • Editorial

    • Authors: Mary Johnson et al.
      PubDate: Tue, 19 Jan 2021 07:07:32 PST
       
  • Atmospheric Pressure Calibration to Improve Accuracy of Transponder-Based
           Aircraft Operations Counting Technology

    • Authors: John H. Mott et al.
      Abstract: In the United States, over 2,400 of the 2,941 non-primary National Plan of Integrated Airport System airports have limited means of establishing operations counts due to lack of available personnel. Precise counts of airport operations are helpful for allocating airport improvement funds, as well as for local and system planning. An emerging technology utilizing ADS-B position data to calibrate signal strength received from Mode C transponders, thereby capturing location information from over 90% of the aircraft operating in the National Airspace System, has successfully estimated operations counts at these non-towered airports with reasonable levels of accuracy. This paper evaluates the impact of further calibration of the model using an atmospheric pressure-based calibration method to improve the accuracy of operations counts. Over 10 million aircraft transponder records collected during 58 days at Purdue University Airport and Terre Haute Regional Airport were analyzed. Uncorrected operations counts and corrected counts using atmospheric pressures averaged both monthly and daily were compared with those obtained from tower-reported figures from the Air Traffic Activity Data System (ATADS) database. The overall accuracy of operations counts from uncorrected heuristics ranged from 5.5% to 13.6% as compared to ATADS over different time periods ranging from 55 to 58 days. Incorporating monthly and daily average pressures improved the count accuracy from 3.2% to 8.7% and from 2.6% to 9.3%, respectively. The test results suggest that the barometric correction method using monthly average pressures results in a modest improvement in overall percentage error and mean average error over the uncorrected method.
      PubDate: Wed, 06 Jan 2021 06:17:31 PST
       
  • An HFACS Analysis of German F-104 Starfighter Accidents

    • Authors: Steven Esser et al.
      Abstract: From 1961 onwards, Germany acquired 916 Lockheed F-104 Starfighters, of which 292 aircraft crashed and 116 pilots lost their lives. The purpose of this research project was to find out why these aircraft crashed and whether the Starfighters crashed for reasons different from those for other military aircraft in Germany. Seventy-one German F-104 accidents between 1978 and 1986 were analyzed by reviewing the original accident files. A Human Factors Analysis and Classification System (HFACS) Level-1 analysis was used as methodology. It was found that more than 50% of the reviewed German F-104 accidents occurred due to technology and/or physical environment. More than half of the sample’s accidents were engine related. It was concluded that the F-104 was indeed more accident-prone than other co-era types. Moreover, the J-79 engine was found to be a weak link in the F-104’s safety record, and the Starfighter’s unforgiving handling characteristics induced an elevated level of skill-based errors.
      PubDate: Wed, 06 Jan 2021 06:17:17 PST
       
  • Tooling Design Modeling for Composite Fuselage of Beechcraft King Air 250
           using CATIA

    • Authors: Miazor Fidelis Ekom
      Abstract: Aircraft’s constant operation in tough conditions necessitates the need for structural components of high strength yet low weight. Composite materials are being used as an alternative to conventional aluminum alloys because of their competitive strength-to-weight and stiffness-to-weight ratios. In this paper, the detailed design procedure of a light-aircraft composite material fuselage tooling in three dimensions is shown. In its operation, the layup tools provide a surface for the composite part which is the correct shape of the part and is stable through the cure cycle, and also providing a means of indexing the part for the next manufacturing operation. This aims to achieve the desired position accuracy and improve the efficiency of assembly procedures. All the parts are designed and measured using CATIA Version 5 software. The fuselage modeled here is a section of Beechcraft King Air 250. At the time of writing, the manufacturing process for the fabrication of this fuselage is entirely different. This design should be viewed as an alternative process as it would cut down weight and costs while improving safety.
      PubDate: Wed, 06 Jan 2021 06:17:06 PST
       
  • Modeling Land and Hold Short Operations: Balancing Safety and Arrival Rate

    • Authors: Kenneth A. Ward et al.
      Abstract: Many airports conduct simultaneous operations on intersecting runways to increase the rate of takeoffs and landings. This requires landing aircraft to hold short of the intersecting runway, which incurs a safety risk of runway incursions in the process. A Monte Carlo simulation was conducted to analyze the traffic load at maximum operational capacity at Charlotte-Douglas International Airport in order to analyze the fleet types and the rate of those landing aircraft unable to stop short of the intersecting runway. The researchers used the actual and four alternative compositions of the subject airline’s aircraft arrivals, interspersed among other airport traffic, to assess how such changes affect the rate of runway incursions, the rate of operations at the airport, and the mean number of passengers the subject airline can land per hour. The simulation revealed that runway length up to the hold short point was the biggest determinant of aircraft being unable to hold short. The total airport rate of operations decreased when heavy wake turbulence category aircraft were introduced. Despite heavy wake turbulence category aircraft carrying more passengers individually, the decreased operations rate also led to fewer passengers per hour that the subject airline could carry.
      PubDate: Fri, 09 Oct 2020 12:08:30 PDT
       
  • Editorial

    • Authors: Mary E. Johnson et al.
      PubDate: Tue, 07 Jul 2020 11:52:10 PDT
       
 
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