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  Subjects -> AERONAUTICS AND SPACE FLIGHT (Total: 124 journals)
Showing 1 - 30 of 30 Journals sorted alphabetically
Acta Astronautica     Hybrid Journal   (Followers: 223)
Advances in Aerospace Engineering     Open Access   (Followers: 74)
Advances in Aerospace Science and Technology     Open Access   (Followers: 14)
Advances in Astronautics Science and Technology     Hybrid Journal   (Followers: 3)
Advances in Space Research     Hybrid Journal   (Followers: 297)
Aeronautical Journal, The     Hybrid Journal   (Followers: 9)
Aerospace     Open Access   (Followers: 64)
Aerospace Medicine and Human Performance     Full-text available via subscription   (Followers: 22)
Aerospace Science and Technology     Hybrid Journal   (Followers: 309)
Aerospace Systems     Hybrid Journal   (Followers: 10)
Aerospace technic and technology     Open Access   (Followers: 7)
Aerotecnica Missili & Spazio : Journal of Aerospace Science, Technologies & Systems     Hybrid Journal   (Followers: 6)
AIAA Journal     Hybrid Journal   (Followers: 1006)
Air Medical Journal     Hybrid Journal   (Followers: 7)
Aircraft Engineering and Aerospace Technology     Hybrid Journal   (Followers: 142)
Artificial Satellites     Open Access   (Followers: 21)
ASTRA Proceedings     Open Access   (Followers: 3)
Astrodynamics     Hybrid Journal   (Followers: 4)
Aviation     Open Access   (Followers: 12)
Aviation in Focus - Journal of Aeronautical Sciences     Open Access   (Followers: 7)
Aviation Psychology and Applied Human Factors     Hybrid Journal   (Followers: 23)
Aviation Week     Full-text available via subscription   (Followers: 415)
Canadian Aeronautics and Space Journal     Full-text available via subscription   (Followers: 31)
CEAS Aeronautical Journal     Hybrid Journal   (Followers: 30)
Chinese Journal of Aeronautics     Open Access   (Followers: 19)
Ciencia y Poder Aéreo     Open Access   (Followers: 3)
Civil Aviation High Technologies     Open Access   (Followers: 6)
Control Systems     Hybrid Journal   (Followers: 239)
Cosmic Research     Hybrid Journal   (Followers: 5)
Egyptian Journal of Remote Sensing and Space Science     Open Access   (Followers: 25)
Fatigue of Aircraft Structures     Open Access   (Followers: 21)
Frontiers in Aerospace Engineering     Open Access   (Followers: 20)
Frontiers in Astronomy and Space Sciences     Open Access   (Followers: 15)
Gyroscopy and Navigation     Hybrid Journal   (Followers: 181)
IEEE Aerospace and Electronic Systems Magazine     Full-text available via subscription   (Followers: 254)
IEEE Journal on Miniaturization for Air and Space Systems     Hybrid Journal   (Followers: 2)
IEEE Transactions on Aerospace and Electronic Systems     Hybrid Journal   (Followers: 284)
IEEE Transactions on Circuits and Systems I: Regular Papers     Hybrid Journal   (Followers: 43)
International Journal of Aeroacoustics     Hybrid Journal   (Followers: 37)
International Journal of Aerodynamics     Hybrid Journal   (Followers: 46)
International Journal of Aeronautical and Space Sciences     Hybrid Journal   (Followers: 4)
International Journal of Aerospace Engineering     Open Access   (Followers: 86)
International Journal of Aerospace Innovations     Full-text available via subscription   (Followers: 23)
International Journal of Aerospace Psychology     Hybrid Journal   (Followers: 22)
International Journal of Aerospace Sciences     Open Access   (Followers: 36)
International Journal of Applied Geospatial Research     Hybrid Journal   (Followers: 7)
International Journal of Aviation Management     Hybrid Journal   (Followers: 5)
International Journal of Aviation Technology, Engineering and Management     Full-text available via subscription   (Followers: 8)
International Journal of Aviation, Aeronautics, and Aerospace     Open Access   (Followers: 9)
International Journal of Crashworthiness     Hybrid Journal   (Followers: 10)
International Journal of Micro Air Vehicles     Open Access   (Followers: 11)
International Journal of Satellite Communications Policy and Management     Hybrid Journal   (Followers: 15)
International Journal of Space Science and Engineering     Hybrid Journal   (Followers: 13)
International Journal of Space Structures     Full-text available via subscription   (Followers: 19)
International Journal of Space Technology Management and Innovation     Full-text available via subscription   (Followers: 11)
International Journal of Sustainable Aviation     Hybrid Journal   (Followers: 5)
Investigación Pecuaria     Open Access   (Followers: 1)
Journal of Aerodynamics     Open Access   (Followers: 27)
Journal of Aeronautical Materials     Open Access   (Followers: 10)
Journal of Aerospace Engineering     Full-text available via subscription   (Followers: 66)
Journal of Aerospace Engineering & Technology     Full-text available via subscription   (Followers: 22)
Journal of Aerospace Information Systems     Hybrid Journal   (Followers: 27)
Journal of Aerospace Information Systems     Hybrid Journal   (Followers: 57)
Journal of Aerospace Technology and Management     Open Access   (Followers: 10)
Journal of Aircraft     Hybrid Journal   (Followers: 267)
Journal of Aircraft and Spacecraft Technology     Open Access   (Followers: 15)
Journal of Airline and Airport Management     Open Access   (Followers: 11)
Journal of Astrobiology & Outreach     Open Access   (Followers: 5)
Journal of Aviation Technology and Engineering     Open Access   (Followers: 10)
Journal of Aviation/Aerospace Education & Research     Open Access   (Followers: 2)
Journal of Engineering and Technological Sciences     Open Access   (Followers: 2)
Journal of Guidance, Control, and Dynamics     Hybrid Journal   (Followers: 168)
Journal of KONBiN     Open Access   (Followers: 4)
Journal of Navigation     Hybrid Journal   (Followers: 180)
Journal of Propulsion and Power     Hybrid Journal   (Followers: 572)
Journal of Space Safety Engineering     Hybrid Journal   (Followers: 8)
Journal of Space Weather and Space Climate     Open Access   (Followers: 30)
Journal of Spacecraft and Rockets     Hybrid Journal   (Followers: 705)
Journal of Spatial Science     Hybrid Journal   (Followers: 4)
Journal of the American Helicopter Society     Full-text available via subscription   (Followers: 9)
Journal of the Astronautical Sciences     Hybrid Journal   (Followers: 11)
Journal of the Australasian Society of Aerospace Medicine     Open Access   (Followers: 3)
Journal of Wind Engineering and Industrial Aerodynamics     Hybrid Journal   (Followers: 21)
Life Sciences in Space Research     Hybrid Journal   (Followers: 5)
MAD - Magazine of Aviation Development     Open Access   (Followers: 3)
Mekanika : Jurnal Teknik Mesin i     Open Access  
Microgravity Science and Technology     Hybrid Journal   (Followers: 3)
New Space     Hybrid Journal   (Followers: 6)
Nonlinear Dynamics     Hybrid Journal   (Followers: 19)
npj Microgravity     Open Access   (Followers: 3)
Open Aerospace Engineering Journal     Open Access   (Followers: 4)
Perspectives of Earth and Space Scientists i     Open Access   (Followers: 1)
Population Space and Place     Hybrid Journal   (Followers: 10)
Problemy Mechatroniki. Uzbrojenie, lotnictwo, inżynieria bezpieczeństwa / Problems of Mechatronics. Armament, Aviation, Safety Engineering     Open Access   (Followers: 3)
Proceedings of the Human Factors and Ergonomics Society Annual Meeting     Hybrid Journal   (Followers: 16)
Proceedings of the Institution of Mechanical Engineers Part G: Journal of Aerospace Engineering     Hybrid Journal   (Followers: 42)
Progress in Aerospace Sciences     Full-text available via subscription   (Followers: 82)
Propulsion and Power Research     Open Access   (Followers: 89)
REACH - Reviews in Human Space Exploration     Full-text available via subscription   (Followers: 5)
Research & Reviews : Journal of Space Science & Technology     Full-text available via subscription   (Followers: 20)
RocketSTEM     Free   (Followers: 5)
Russian Aeronautics (Iz VUZ)     Hybrid Journal   (Followers: 23)
Science and Education : Scientific Publication of BMSTU     Open Access   (Followers: 1)
Space and Polity     Hybrid Journal   (Followers: 6)
Space Policy     Hybrid Journal   (Followers: 30)
Space Research Today     Full-text available via subscription   (Followers: 43)
Space Safety Magazine     Free   (Followers: 50)
Space Science International     Open Access   (Followers: 119)
Space Science Reviews     Hybrid Journal   (Followers: 92)
SpaceNews     Free   (Followers: 782)
Spatial Information Research     Hybrid Journal   (Followers: 1)
Transactions on Aerospace Research     Open Access   (Followers: 1)
Transport and Aerospace Engineering     Open Access   (Followers: 4)
Transportmetrica A : Transport Science     Hybrid Journal   (Followers: 7)
Unmanned Systems     Hybrid Journal   (Followers: 4)
Xibei Gongye Daxue Xuebao / Journal of Northwestern Polytechnical University     Open Access  
Вісник Національного Авіаційного Університету     Open Access   (Followers: 1)

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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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