Forthcoming and Online First Articles

International Journal of Sustainable Aviation

International Journal of Sustainable Aviation (IJSA)

Forthcoming articles have been peer-reviewed and accepted for publication but are pending final changes, are not yet published and may not appear here in their final order of publication until they are assigned to issues. Therefore, the content conforms to our standards but the presentation (e.g. typesetting and proof-reading) is not necessarily up to the Inderscience standard. Additionally, titles, authors, abstracts and keywords may change before publication. Articles will not be published until the final proofs are validated by their authors.

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International Journal of Sustainable Aviation (2 papers in press)

Regular Issues

  • Generic model for evaluation of vertical flight efficiency in climb and descent phases: a case study review   Order a copy of this article
    by Matej Soldo Jocić, Zvonimir Rezo, Tomislav Mihetec, Sanja Steiner 
    Abstract: Vertical flight efficiency (VFE) is essential for evaluating the economic and environmental impacts of the air traffic management (ATM) system. Inefficiencies in vertical flight operations cause monetary detriments to airspace users and negative environmental effects. Implementing continuous descent and climb operations during arrivals and departures is recommended to mitigate these issues. This research paper introduces a model to quantify flight efficiency impacts during climb and descent phases. It provides empirical data demonstrating the economic and environmental consequences of inefficiencies. The paper outlines the research context, conceptual frameworks, and methodologies used, supported by a real-world case study. The developed model enables the development of strategies to improve flight efficiency. The findings contribute to the sustainable development of the ATM system, highlighting the importance of enhancing VFE from both an economic and environmental viewpoint.
    Keywords: air traffic management; ATM; vertical flight efficiency; VFE; continuous climb operations; CCOs; continuous descent operations; CDOs.

  • Analysis of the aircraft performance at cruise altitude within the tropopause layer   Order a copy of this article
    by Tapdig Imanov 
    Abstract: The purpose of the current study is to examine a comprehensive analysis of aircraft performance within the tropopause layer, considering temperature anomaly occurrences at cruise flights between FL300 and FL430. Hereafter, 24 flight scenarios were analyzed using 93 recorded flight data obtained from the Boeing 777F enhanced airborne flight recorder (EAFR). The methodology integrates General Electric (GE) Aviation diagnostic systems, TrueChoice and TRUEngine, and International Standard Atmosphere (ISA) data to establish relationships between temperature and altitude variations. The findings reveal significant temperature increases below the average tropopause level at 36,000 feet, resulting in elevated fuel consumption exceeding 9,000 lbs per hour. Despite moderate changes in exhaust gas temperature at 748 C, carbon dioxide emissions remain a major concern. Flights conducted above-average tropopause levels at altitudes between 390 and 430 FL indicate stability in engine parameters, ensuring optimal fuel efficiency.
    Keywords: aircraft; performance; cruise flight; global warming; total air temperature; TAT; tropopause.

 

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