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  Subjects -> AERONAUTICS AND SPACE FLIGHT (Total: 124 journals)
Showing 1 - 30 of 30 Journals sorted by number of followers
AIAA Journal     Hybrid Journal   (Followers: 1002)
SpaceNews     Free   (Followers: 778)
Journal of Spacecraft and Rockets     Hybrid Journal   (Followers: 702)
Journal of Propulsion and Power     Hybrid Journal   (Followers: 569)
Aviation Week     Full-text available via subscription   (Followers: 410)
Aerospace Science and Technology     Hybrid Journal   (Followers: 305)
Advances in Space Research     Hybrid Journal   (Followers: 295)
IEEE Transactions on Aerospace and Electronic Systems     Hybrid Journal   (Followers: 280)
Journal of Aircraft     Hybrid Journal   (Followers: 261)
IEEE Aerospace and Electronic Systems Magazine     Full-text available via subscription   (Followers: 251)
Control Systems     Hybrid Journal   (Followers: 235)
Acta Astronautica     Hybrid Journal   (Followers: 220)
Gyroscopy and Navigation     Hybrid Journal   (Followers: 177)
Journal of Navigation     Hybrid Journal   (Followers: 176)
Journal of Guidance, Control, and Dynamics     Hybrid Journal   (Followers: 165)
Aircraft Engineering and Aerospace Technology     Hybrid Journal   (Followers: 139)
Space Science International     Open Access   (Followers: 117)
Space Science Reviews     Hybrid Journal   (Followers: 92)
Propulsion and Power Research     Open Access   (Followers: 89)
International Journal of Aerospace Engineering     Open Access   (Followers: 86)
Progress in Aerospace Sciences     Full-text available via subscription   (Followers: 82)
Advances in Aerospace Engineering     Open Access   (Followers: 74)
Journal of Aerospace Engineering     Full-text available via subscription   (Followers: 66)
Aerospace     Open Access   (Followers: 64)
Journal of Aerospace Information Systems     Hybrid Journal   (Followers: 57)
Space Safety Magazine     Free   (Followers: 50)
International Journal of Aerodynamics     Hybrid Journal   (Followers: 46)
IEEE Transactions on Circuits and Systems I: Regular Papers     Hybrid Journal   (Followers: 43)
Space Research Today     Full-text available via subscription   (Followers: 43)
Proceedings of the Institution of Mechanical Engineers Part G: Journal of Aerospace Engineering     Hybrid Journal   (Followers: 42)
International Journal of Aeroacoustics     Hybrid Journal   (Followers: 37)
International Journal of Aerospace Sciences     Open Access   (Followers: 36)
Canadian Aeronautics and Space Journal     Full-text available via subscription   (Followers: 31)
Space Policy     Hybrid Journal   (Followers: 30)
Journal of Space Weather and Space Climate     Open Access   (Followers: 30)
CEAS Aeronautical Journal     Hybrid Journal   (Followers: 30)
Journal of Aerodynamics     Open Access   (Followers: 27)
Journal of Aerospace Information Systems     Hybrid Journal   (Followers: 27)
Egyptian Journal of Remote Sensing and Space Science     Open Access   (Followers: 25)
Russian Aeronautics (Iz VUZ)     Hybrid Journal   (Followers: 23)
International Journal of Aerospace Innovations     Full-text available via subscription   (Followers: 23)
Aviation Psychology and Applied Human Factors     Hybrid Journal   (Followers: 23)
Aerospace Medicine and Human Performance     Full-text available via subscription   (Followers: 22)
International Journal of Aerospace Psychology     Hybrid Journal   (Followers: 22)
Journal of Aerospace Engineering & Technology     Full-text available via subscription   (Followers: 22)
Journal of Wind Engineering and Industrial Aerodynamics     Hybrid Journal   (Followers: 21)
Artificial Satellites     Open Access   (Followers: 21)
Fatigue of Aircraft Structures     Open Access   (Followers: 21)
Research & Reviews : Journal of Space Science & Technology     Full-text available via subscription   (Followers: 20)
Frontiers in Aerospace Engineering     Open Access   (Followers: 20)
International Journal of Space Structures     Full-text available via subscription   (Followers: 19)
Nonlinear Dynamics     Hybrid Journal   (Followers: 19)
Chinese Journal of Aeronautics     Open Access   (Followers: 19)
Proceedings of the Human Factors and Ergonomics Society Annual Meeting     Hybrid Journal   (Followers: 16)
International Journal of Satellite Communications Policy and Management     Hybrid Journal   (Followers: 15)
Frontiers in Astronomy and Space Sciences     Open Access   (Followers: 15)
Journal of Aircraft and Spacecraft Technology     Open Access   (Followers: 15)
Advances in Aerospace Science and Technology     Open Access   (Followers: 14)
International Journal of Space Science and Engineering     Hybrid Journal   (Followers: 13)
Aviation     Open Access   (Followers: 12)
International Journal of Micro Air Vehicles     Open Access   (Followers: 11)
Journal of Airline and Airport Management     Open Access   (Followers: 11)
Journal of the Astronautical Sciences     Hybrid Journal   (Followers: 11)
International Journal of Space Technology Management and Innovation     Full-text available via subscription   (Followers: 11)
Population Space and Place     Hybrid Journal   (Followers: 10)
Journal of Aviation Technology and Engineering     Open Access   (Followers: 10)
Journal of Aeronautical Materials     Open Access   (Followers: 10)
Aerospace Systems     Hybrid Journal   (Followers: 10)
International Journal of Crashworthiness     Hybrid Journal   (Followers: 10)
Journal of Aerospace Technology and Management     Open Access   (Followers: 10)
Aeronautical Journal, The     Hybrid Journal   (Followers: 9)
Journal of the American Helicopter Society     Full-text available via subscription   (Followers: 9)
International Journal of Aviation, Aeronautics, and Aerospace     Open Access   (Followers: 9)
International Journal of Aviation Technology, Engineering and Management     Full-text available via subscription   (Followers: 8)
Journal of Space Safety Engineering     Hybrid Journal   (Followers: 8)
International Journal of Applied Geospatial Research     Hybrid Journal   (Followers: 7)
Transportmetrica A : Transport Science     Hybrid Journal   (Followers: 7)
Aerospace technic and technology     Open Access   (Followers: 7)
Aviation in Focus - Journal of Aeronautical Sciences     Open Access   (Followers: 7)
New Space     Hybrid Journal   (Followers: 6)
Space and Polity     Hybrid Journal   (Followers: 6)
Aerotecnica Missili & Spazio : Journal of Aerospace Science, Technologies & Systems     Hybrid Journal   (Followers: 6)
Civil Aviation High Technologies     Open Access   (Followers: 6)
Air Medical Journal     Hybrid Journal   (Followers: 6)
REACH - Reviews in Human Space Exploration     Full-text available via subscription   (Followers: 5)
RocketSTEM     Free   (Followers: 5)
International Journal of Sustainable Aviation     Hybrid Journal   (Followers: 5)
Journal of Astrobiology & Outreach     Open Access   (Followers: 5)
Life Sciences in Space Research     Hybrid Journal   (Followers: 5)
International Journal of Aviation Management     Hybrid Journal   (Followers: 5)
Cosmic Research     Hybrid Journal   (Followers: 5)
Journal of Spatial Science     Hybrid Journal   (Followers: 4)
Journal of KONBiN     Open Access   (Followers: 4)
Astrodynamics     Hybrid Journal   (Followers: 4)
International Journal of Aeronautical and Space Sciences     Hybrid Journal   (Followers: 4)
Unmanned Systems     Hybrid Journal   (Followers: 4)
Transport and Aerospace Engineering     Open Access   (Followers: 4)
Open Aerospace Engineering Journal     Open Access   (Followers: 4)
Problemy Mechatroniki. Uzbrojenie, lotnictwo, inżynieria bezpieczeństwa / Problems of Mechatronics. Armament, Aviation, Safety Engineering     Open Access   (Followers: 3)
Microgravity Science and Technology     Hybrid Journal   (Followers: 3)
Journal of the Australasian Society of Aerospace Medicine     Open Access   (Followers: 3)
npj Microgravity     Open Access   (Followers: 3)
ASTRA Proceedings     Open Access   (Followers: 3)
MAD - Magazine of Aviation Development     Open Access   (Followers: 3)
Ciencia y Poder Aéreo     Open Access   (Followers: 3)
Journal of Aviation/Aerospace Education & Research     Open Access   (Followers: 2)
Advances in Astronautics Science and Technology     Hybrid Journal   (Followers: 2)
Journal of Engineering and Technological Sciences     Open Access   (Followers: 2)
IEEE Journal on Miniaturization for Air and Space Systems     Hybrid Journal   (Followers: 2)
Perspectives of Earth and Space Scientists i     Open Access   (Followers: 1)
Investigación Pecuaria     Open Access   (Followers: 1)
Transactions on Aerospace Research     Open Access   (Followers: 1)
Вісник Національного Авіаційного Університету     Open Access   (Followers: 1)
Science and Education : Scientific Publication of BMSTU     Open Access   (Followers: 1)
Spatial Information Research     Hybrid Journal   (Followers: 1)
Xibei Gongye Daxue Xuebao / Journal of Northwestern Polytechnical University     Open Access  
Mekanika : Jurnal Teknik Mesin i     Open Access  

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Journal Cover
International Journal of Aviation, Aeronautics, and Aerospace
Journal Prestige (SJR): 0.174
Number of Followers: 9  

  This is an Open Access Journal Open Access journal
ISSN (Print) 2374-6793
Published by Embry-Riddle Aeronautical University Homepage  [4 journals]
  • How to Construct a Safety Management System (SMS) That Promotes Safety
           Culture in Your Organization

    • Authors: Tara Samuels
      Abstract: Organizations spend considerable resources building robust Safety Management Systems, yet may struggle to develop a strong Safety Culture. The effect can ripple throughout the organization, particularly affecting employee safety, as well as product quality, productivity, engagement, and retention. This paper introduces the four basic components and most critical cultural preconditions of a successful SMS. It then provides recommendations aligned with each of the four basic components to guide management toward creating the kind of work environment that empowers and engages employees at all levels of the organization. Building a strong Safety Culture is simply good business, and the research conducted here culminates in a checklist for safety managers and executives who are committed to creating an environment that promotes a resilient Safety Culture within their organization.
      PubDate: Tue, 10 May 2022 15:05:17 PDT
       
  • Modelling Air Quality in an Aircraft Passenger Cabin using Health Care
           Standards

    • Authors: Bert Silich
      Abstract: The interest in aerosol contamination of aircraft passenger cabins has increased since the onset of the COVID-19 pandemic. Mathematical models have been developed to help describe how an aerosol behaves in a closed space. The number of infectious particles inhaled is of scientific interest because it can be related to the risk of getting ill from a pathogen. The data required to calculate these results is often difficult to obtain in real world settings. In fact, particle inhalation details are not obtained in the day-to-day routine of a health care environment and are they not required to maintain safety. Hospital isolation rooms provide safe air quality without measuring the aerosol contaminant concentration of the source or a person’s volume flow rate of breathing. Using the concept of the aerosol concentration ratio and applying hospital isolation room standards, a method to set safe aircraft passenger cabin air quality standards is discussed.
      PubDate: Tue, 10 May 2022 15:05:10 PDT
       
  • UAS for Public Safety: Active Threat Recognition

    • Authors: Joseph Cerreta et al.
      Abstract: The Center for Homeland Defense and Security identified an increase of active threat events, such as mass shootings, annually since 1999. Literature suggests that 90% of shootings were over before law enforcement arrived at the scene and the first responder response was limited to “surround and contain” until Special Weapons and Tactics Teams (SWAT) arrived on the scene. Using Unmanned Aircraft Systems (UAS) to detect which individual was the threat and type of weapon used can provide useful information to increase the speed of the response for first-on-scene rather than waiting for SWAT if the type of weapon was known. A UAS equipped with a full spectrum sensor compared traditional red-green-blue (RGB) images to near-infrared (NIR) images in a simulated active threat scenario. A true positive rate (TPR) metric was used to measure the percentage of correctly-detected weapons consisting of either a knife, pistol, rifle, shotgun, or shovel at slant range distances of 25-, 50-, 75-, and 100-feet respectively. A convenience sample of 102 survey participants, recruited from constituents of the Airborne Public Safety Association (APSA) and DRONERESPONDERS was conducted to observe 48 randomly-presented images to determine which type of weapon was detected. The results suggest that survey participants could correctly detect weapons at a 12% greater rate with the NIR sensor than the RGB sensor; however, the pistol had the largest difference in TPR between NIR and RGB sensors. The pistol had an increased probability of detection by 33% when using the NIR sensor compared to an RGB sensor. Additionally, differences were also observed between slant range distances. The closest distance of 25 feet showed a 42% increase in participants’ ability to correctly determine the weapon type compared to the 100-foot slant range distance. Therefore, using a NIR sensor-equipped UAS at flying a maximum slant range distance of 50 feet may help a first-responder determine the type of weapon before SWAT arrives on the scene.
      PubDate: Tue, 10 May 2022 15:04:56 PDT
       
  • Establishing Commercial Aviation Safety Privilege: Court Precedent versus
           Statute

    • Authors: Jason Powell
      Abstract: This concept paper evaluates the pros and cons of establishing commercial aviation safety privilege beyond the almost uniquely United States Department of Defense (DoD) legal protection built upon court precedence (stare decisis) as a statutory concept that can apply across all aviation investigations. The protection offered under Title 49 CFR 1114 only applies to the information provided that is not part of the safety investigation and allows full release of interviews that pertain to the investigation, which is further applied in the National Transportation Safety Board Aviation Investigation Manual (2002). The Supreme Court of the United States recognized different privileged communication under the common-law principle, which also provides a fundamental guideline to building a statutory argument for safety privilege (Federal Rules of Evidence 501, 2022). By adding statutory guidance, the concept can expand, potentially increasing the ability of aviation safety investigators to gain honest aircrew testimony and increase safety. Guidance can make way for international agreements and participation in the aviation safety process. However, there are consequences to expanding a common law to one with statutory authority, which may be sufficient to argue against the benefits of a statute for aviation safety privilege.
      PubDate: Mon, 09 May 2022 14:47:47 PDT
       
  • Classifıcation of Survivor/Non-Survivor Passengers in Fatal Aviation
           Accidents: A Machine Learning Approach

    • Authors: Tüzün Tolga İNAN Dr.
      Abstract: The safety concept primarily examines the most fatal (resulting in dead passengers) accidents of aviation history in this study. The primary causes of most fatal accidents are; human, technical, and sabotage/terrorism factors. Although the aviation industry started with the first engine flight in 1903, the safety concept has been examined since the 1950s. The safety concept firstly examined the technical factors, and in the late 1970s, human factors started to analyze. Despite these primary causes, there have different factors that affect accidents. So, the study aims to determine the affecting factors of the most fatal accidents to classify the survivor/non-survivor passenger numbers. Logistic regression and discriminant analysis are used as multivariate statistical analyses to compare with the machine learning approaches showing the algorithms’ robustness. In this study, machine learning techniques have better performance than multivariate statistical methods in terms of accuracy, false-positive rate, and false-negative rate. In conclusion, the phase of flight, the primary cause, and total passenger numbers are determined as the most affected factors in machine learning and multivariate statistical models for classifying the accidents’ survivor/non-survivor passenger numbers.Keywords: Machine learning; primary causes; fatal aviation accidents; classification of survivor/non-survivor passengers; multivariate statistical analysis.
      PubDate: Tue, 12 Apr 2022 10:48:43 PDT
       
  • Use of Unmanned Aircraft Systems and Regulatory Landscape: Unravelling the
           Future Challenges in the High Sky

    • Authors: K Kirthan Shenoy et al.
      Abstract: The individuals on the ground nowadays often observe objects distantly hover over the sky, which raises the question of who might be operating the object or what the object might record. Unmanned Aircraft Systems (UAS) or Drones today have quickly penetrated civilian, military, and commercial sectors. The drones or UAS, with the advancement of technology, are now capable of traversing long distances, having long endurance, and having multipurpose functionality. The UAS industry is fast expanding, with trade investment touching the billion-dollar mark in flourishing economies. The advent of the Covid 19 pandemic saw a steep rise in the use of UAS across the world. The world is moving towards a liberalized regulatory approach to promote and accelerate the UAS within the aviation ecosystem. The UAS ecosystem provides access to advanced aircraft technology coupled with vast economic opportunity, but the same is not devoid of challenges. The study looks at aspects of privacy, persistence surveillance, data protection, and safety that have emerged as pertinent challenges to the UAS ecosystem. The study has analyzed the case laws that have influenced the regulatory approach, policy initiatives. The study has also looked at stakeholders’ initiatives to navigate the challenges to strengthen the UAS ecosystem.
      PubDate: Sat, 02 Apr 2022 12:57:42 PDT
       
  • Heat Generation of Aircraft Tires at Landing

    • Authors: Yu Li et al.
      Abstract: When the aircraft lands on a runway, the great speed difference between tires and runway causes non-negligible friction and speeds up wheels. The generated heat rapidly raises tire temperature and causes material decomposition, which leads to replacement cost and flight safety issues; the chemical substances in the air can also cause emission problems. Many studies on aircraft tire temperature are based on software simulation or experiments. The simulation result may be affected by unnecessary variables due to cumbersome modelling, and the observation result may be inaccurate due to a particularly dynamic friction process. On the other side, there are few theoretical calculations about it. Therefore, A dynamic and thermal MATLAB model based on Laplace's heat equation is developed in this study to simulate the tire friction and heat generation. The temperature rise can be treated as an indicator to predict wear under variable landing conditions. The model can also be used to develop tire wear prevention methods.
      PubDate: Tue, 08 Mar 2022 10:13:19 PST
       
  • Medium Altitude Long Endurance RPA Training: Evaluating Blended Learning

    • Authors: Zachary Waller et al.
      Abstract: The Heads Down Display (HDD) Menu Trainer – a stand-alone software trainer – was developed to familiarize students in Remotely Piloted Aircraft training with the layout and manipulation of the HDD menus for either the MQ-1 or MQ-9. Preliminary work by Waller et al. (2016) established the efficacy of the HDD Menu Trainer in improving student performance from pretest to posttest scores across several modalities (i.e. traditional, blended, and distance). Recognizing that students holding pilot certification scored higher in some aspects of the HDD Menu Trainer, this study sampled students across a curriculum to assess whether performance with the HDD Menu Trainer would differ across modalities (i.e. traditional, blended, and distance) when FAA pilot certification was controlled.Results of a mixed factorial ANCOVA indicated the effectiveness of the HDD menu trainer once more through a main within-subjects effect of performance and performance was again higher for students holding an FAA pilot certificate than for those without. However, modality failed to demonstrate a significant interaction effect with student performance from pretest to posttest. These results affirm that even outside the variation which should be attributed to a student’s pilot certification, the HDD Menu Trainer demonstrates equal effectiveness when used in blended and distance modalities. These results support several prior works finding blended learning applications to be at least as effective as other modalities.As blended, flipped, and hybrid learning models are increasingly expected within higher education curriculums, future work is anticipated in the construct of student engagement (Borup et al., 2020; Halverson & Graham, 2019).
      PubDate: Sun, 27 Feb 2022 12:48:39 PST
       
  • Interactions of International Pilots' Stress, Fatigue, Symptoms of
           Depression, Anxiety, Common Mental Disorders and Wellbeing

    • Authors: Marion Venus et al.
      Abstract: ObjectiveThis study Investigates more dimensions than previous studies simultaneously: pilots’ duty rosters, stress, sleep difficulties, fatigue levels, wellbeing, symptoms of depression, anxiety, and common mental disorders (CMD), and how they are interrelated.BackgroundSeveral scientific studies have confirmed that fatigue can pose a significant risk to flight safety. Other studies reported positive depression screening results for more pilots, compared with the general population.MethodA cross-sectional online survey was completed by 406 international pilots, who reported their duty rosters of the last two months. Pilots also self-assessed their stress-levels, sleep problems, fatigue, wellbeing, and mental health.ResultsAlthough pilots were on average rostered for only 60% of maximum legal duty and flight hours, three out of four pilots (76%) reported severe or high fatigue. Every fourth pilot reported considerable sleep difficulties (24%). 18.7% pilots reported positive depression screening results, 8.5% positive anxiety screenings, 7.2% reported significant symptoms of depression and anxiety. Highly significant to high correlations between stress, sleep problems, fatigue, symptoms of depression, anxiety, CMD and well-being were found.ConclusionsChronic stress appears to be linked to psychophysiological wear and tear, and was associated with higher levels of fatigue, more sleep disturbances and more impaired mental health. Future research should not only consider fatigue as an immediate threat to aviation safety, but also as a significant threat to pilots’ safety-relevant fitness to fly.
      PubDate: Sun, 27 Feb 2022 12:48:30 PST
       
  • Aircraft interior and seat design: priorities based on passengers’
           opinions

    • Authors: Peter Vink et al.
      Abstract: Comfort is an important factor for passengers in the selection of airlines, and electric propeller aircraft will be an important element of future sustainable aviation. In this paper, we studied the order of importance of different (dis)comfort factors regarding traveling with propeller aircraft. Two experiments were conducted, one was a simulation flight on the ground with 33 participants and the other were two real flights with 97 participants. All participants were asked to rank the importance of different (dis)comfort factors in different phases of flights. Results indicated that though there are differences between the simulation and the real flights, noise, vibration and the seat are among the most important factors regarding discomfort, and space, lighting, temperature and seat are the most important factors of comfort. The results are different to those reported from previous studies on travelling by jet, where anthropometry is the most important factor. This finding suggests a difference in passenger perception between travelling by propeller propulsion and jet engines, and casts new requirements on the aircraft interior and service design for future sustainable aviation.
      PubDate: Tue, 22 Feb 2022 17:35:01 PST
       
  • SPACE CARGO: Ultra-fast Delivery on Earth –Potential of Using Suborbital
           Space Vehicles for the Transportation of Cargo

    • Authors: Robert O. Walton et al.
      PubDate: Tue, 22 Feb 2022 11:08:14 PST
       
  • The Five Hazardous Attitudes, A Subset of Complacency

    • Authors: Peter S. Neff
      Abstract: AbstractThe article discusses complacency and the five hazardous attitudes in the context that the five hazardous attitudes are a subset of complacency. On the list of 12 most common contributors to aircraft accidents, the FAA lists complacency as the second most often contributor. Complacency implies that there is a level of satisfaction with the present circumstances without any consideration of future unseen potential dangers. Attitude embodies the concept that a person has a predisposed response to certain stimuli. Complacency manifests itself in the form of the five hazardous attitudes: (a) anti-authority, (b) impulsivity, (c) invulnerability, (d) macho, and (e) resignation. Analysis of the 2001 Gulfstream III accident in Aspen, CO revealed disregard for federal, state, and local regulations in addition to the violation of company policies. The crew executed a prohibited approach and descended below the minimum descent altitude without the proper visual cues. The crew knew the correct protocols, but they chose to disregard them. The crew of the GIV accident in Bedford, MA neglected to complete the five required checklists including the Before Starting Engines checklist to the Lineup checklist on 98% of the previous 175 flights. The crew attempted this takeoff with the flight controls locked. During their respective flight segments, each crew exhibited the five hazardous attitudes. Both crews knew the correct standards of performance although neither crew met those standards. Both crews were professionally trained and experienced. The respective flight crews were complacent, and they exhibited that complacency through the five hazardous attitudes.
      PubDate: Tue, 22 Feb 2022 11:08:06 PST
       
  • A Mathematical Analysis of the Wind Triangle Problem and an Inquiry of
           True Airspeed Calculations in Supersonic Flight

    • Authors: Leonard T. Huang et al.
      Abstract: In the first half of this paper, we present a fresh perspective toward the Wind Triangle Problem in aerial navigation by deriving necessary and sufficient conditions, which we call "go/no-go conditions", for the existence/non-existence of a solution of the problem. Although our derivation is based on simple trigonometry and basic properties of quadratic functions, it is mathematically rigorous. We also offer examples to demonstrate how easy it is to check these conditions graphically. In the second half of this paper, we use function theory to re-examine another problem in aerial navigation, namely, that of computing true airspeed — even in supersonic flight — from only three instrument readings obtainable from a basic flight instrument panel: calibrated airspeed, pressure altitude, and total air temperature. We present the first known mathematically rigorous analysis of the use of fixed-point iteration to compute true airspeed and Mach number from the Rayleigh Supersonic Pitot Equation. Our analysis comes with error estimates that are not found anywhere in the literature.
      PubDate: Mon, 07 Feb 2022 10:04:09 PST
       
  • Aircraft Exhaust Gas Temperature Value Mining with Rough Set Method

    • Authors: Mustagime Tülin Yıldırım Asst. Prof. et al.
      Abstract: Aircrafts are one of the most important means of transportation today. For aircrafts to be able to serve safely, their maintenance must be done in a timely and complete manner. In addition to regular maintenance, it may appear suddenly; there is also irregular maintenance performed in cases such as lightning strikes, bird strikes, and hard landings. Engine failures and maintenance has great importance in aircraft maintenance. Using the data recorded during the flight by flight data recorder, the engine health condition is monitored and the necessary maintenance procedures are carried out. In this study, the exhaust gas temperature was estimated using various data mining algorithms. Because exhaust gas temperature is one of the important parameters used to monitor the aircraft engine health condition. The obtained mining results show the Random Forest Algorithm has best estimation performance. With mining of exhaust gas temperature value, faults can be detected before costly maintenance and accidents. So preventive maintenance methods will be applied, aircraft engines will remain healthy, a significant reduction in the maintenance cost of the operator will be achieved, as well as flight safety and environmental protection.
      PubDate: Sun, 23 Jan 2022 11:42:38 PST
       
  • Design of a Laboratory Annular Combustor

    • Authors: Sathish Dharmalingam et al.
      Abstract: Combustion lies at the heart of gas turbine technology. The combustor is the power source that aids the acceleration of flight. It provides the core functionality of adding heat through the controlled burn of the air-fuel mixture, converted into mechanical energy with the help of turbines. This extracted power has been used to produce thrust in the case of aircraft or to produce electrical energy in the case of industrial gas turbines. Designing an annular combustor involves a rigorous iterative process, and there is no systematic procedure available to design a small-scale laboratory combustor, used for research and academic purposes. This paper aims to resolve those problems and provides the step-by-step procedural design of small-scale laboratory combustors.
      PubDate: Sat, 01 Jan 2022 09:27:58 PST
       
  • Prediction Models for Willingness to Support Private and Government Space
           Ventures: A Regression Study

    • Authors: Danita Baghdasarin et al.
      Abstract: Public opinion is critical to the future of United States (US) space ventures as it can affect factors such as funding and legislation. The purpose of this study was to identify factors that influence the American public’s willingness to support both private and government space ventures. A set of 15 possible predictors were identified via a review of similar articles and surveys, including demographic information, social media and news consumption behaviors, offline activity, and opinions about space ventures. A total of 638 adults from the US participated in this study via Amazon ® Mechanical Turk ®. A multiple regression analysis of these data yields regression equations for each Willingness to Support Private and Government Space Ventures. The regression equations suggest Willingness to Support Private Space Ventures was influenced by gender, political affiliation, familiarity with space ventures, and perceived value of space ventures, while Willingness to Support Government Space Ventures was influenced by education and perceived value; the two statistical models explain 42% and 46% of the variance, respectively. These results and future study recommendations may be of interest to private and governmental organizations interested in growing support for their space ventures among the American public.
      PubDate: Sat, 01 Jan 2022 09:27:47 PST
       
  • Measuring Safety Culture: Qualitative and Quantitative Means of Measuring
           Safety Culture for Safety Management System Optimization

    • Authors: David R. Zubowski
      Abstract: The Department of Transportation Office of the Inspector General (2020) investigated the Federal Aviation Administration oversight of Southwest Airlines Safety Management System and noted concerns and gaps in the oversight, specifically with the lack of guidance provided to inspectors in evaluating organizational safety culture. Using the published report as a case study, this work researched different peer-reviewed articles using qualitative and quantitative means to investigate the benefits, limitations, and assumptions of measuring an organizational safety culture. While different methods were used, academia seems to have settled on definitions for safety culture and safety climate with the majority of researchers using survey instruments to collect data. However, commercially available safety culture evaluations seem to use consultant experience instead of academic findings for curriculum and evaluation development. The Federal Aviation Administration could facilitate academic and commercial collaboration to improve guidance to inspectors and resolve gaps in oversight of safety culture in Safety Management Systems.
      PubDate: Fri, 10 Dec 2021 10:29:36 PST
       
  • Potential Applications of Electrodynamic Tethers

    • Authors: Sai Charan Petchetti
      Abstract: In recent decades, alternative propulsion systems have been investigated and have attracted great interest in the space community. Most of these alternative propulsion systems need propellants. One alternative propulsion system that does not require propellants and is not often discussed is electrodynamic tethers (EDTs). This paper speculates the potential applications of EDTs ranging from radiation belt remediation to momentum exchange tether re-boosting.
      PubDate: Fri, 26 Nov 2021 09:13:10 PST
       
  • Leadership style and communication style of airline pilots: Perceived
           associations with crew members’ satisfaction and effort

    • Authors: José Carlos Dias Rouco Carlos Rouco et al.
      Abstract: Leadership and communication have been identified as paramount factors for flight safety and efficiency but research on the effects of these factors is scarce. This study analyzes which leadership styles and which communication styles are perceived by airline pilots to be associated with their teams’ satisfaction and extra effort. A survey was conducted with a total of 105 airline pilots, and a research model was tested with structural equation modeling. Results indicated that participative leadership is the only leadership style retained by the model explaining satisfaction and extra effort of crew members. Participative leadership is positively related to assertive communication and negatively related to passive communication. Assertive communication mediates between participative leadership and satisfaction, and passive communication mediates between participative leadership and extra effort
      PubDate: Wed, 17 Nov 2021 13:23:27 PST
       
  • An integrated method for airline company supplier selection based on the
           entropy and vikor methods: a real case study

    • Authors: Naimeh Borjalilu et al.
      Abstract: All certified airlines require to implement a safety and quality management system. Therefore, the quality of all services and products with critical operational domains have been challenging issues in the aviation industry. In this regard, supplier selection plays an important role to acquire competitive benefits. Flight operations is critical scope in an airline and their outputs have a direct impact on flight safety consequences. Therefore, the quality of supplier’s product and services play the main role in their flight operations process. In this research, a new decision-making framework is developed to evaluate the performance of the suppliers based on the Entropy and VIKOR approaches. At the outset, the main criteria and sub-criteria are identified based on the literature and expert's viewpoint and then their weights are calculated using the Entropy method. Afterward, the potential suppliers are ranked using the VIKOR method. The airline supplier’s assessment through expert judgment and integrated criteria are the new approaches that are developed in this paper. The obtained results show that economic, quality and safety, and reputation respectively are the main criteria to select suppliers.
      PubDate: Wed, 17 Nov 2021 13:23:21 PST
       
 
JournalTOCs
School of Mathematical and Computer Sciences
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