Aug 2026· Journal of Air Transportation· 1 citation· 14 references
Abstract
Aircraft often deviate from fuel-optimal trajectories during the cruise phase of flight, which accounts for approximately 70% of aviation fuel consumption. Deviations in horizontal route, altitude, and speed lead to excess fuel burn, increased [Formula: see text] emissions, and higher operational costs. This study provides a global assessment of cruise fuel inefficiency using trajectory data from over 32 million flights between November 2022 and November 2023. We estimate global cruise fuel inefficiency at 7.5%, representing 12.9 million metric tons of excess fuel consumption annually, with associated fuel costs and 40.7 million metric tons of [Formula: see text] emissions. Regional variation is notable, ranging from 4 to 7% in oceanic regions to 19.5% in China. Analysis of individual dimensions indicates that there is a 3.3% horizontal inefficiency from not flying the wind-optimal route, a 2.4% vertical inefficiency from not flying at the optimal altitude, and a 2.2% speed inefficiency from not flying at the optimal cruise speed.
Fuel consumption at tropical airports in developing regions remains poorly documented, creating a significant empirical gap in both academic literature and operational guidance. This paper presents a comprehensive assessment and analysis of aircraft fuel consumption at Maya-Maya International Airport (FCBB), Republic o...
Manasse Malame Kaboulou, Bienvenu Ondami, Henri Joel Ondze et al.· Engineering, Technology &...· 0 citations
Cities are increasingly addressing mobility challenges by restricting road traffic, particularly traditional road vehicles that generate greenhouse gas emissions. As an alternative, unmanned aircraft systems (UASs) are emerging as a promising solution for future mobility, offering fast, quiet, cost-effective and enviro...
Marc Melgosa, J. Kuljanin, Jairo Lopez et al.· Drones· 0 citations
This paper evaluates the impact of airport elevation on the operational performance of wide – body aircraft within a sustainable aviation framework. A comparative analysis was conducted across three distinct elevations: Singapore Changi Airport, Hartsfield – Jackson Atlanta International Airport, and Denver Internation...
Abdelbadie Younes· American Journal of Environm...· 0 citations
The transition to alternative fuels offers a promising pathway to reduce aviation’s environmental footprint. This study investigates the impact of replacing conventional jet fuel with power-to-liquid hydrogen ([Formula: see text]), power-to-liquefied natural gas (Pt-LNG), power-to-liquefied petroleum gas (Pt-LPG), and...
Matteo Guidotti, Rohit Gupta, Jared Dost et al.· Journal of Air Transportatio...· 0 citations
Unmanned aerial vehicle (UAV) inspection of mountainous expressway networks involves continuously distributed tasks, coordination among multiple base stations, and uncertain flight time and energy consumption induced by no-fly-zone detours. This study develops an offline robust planning framework that jointly determine...
Jun-Tao Wang, Lun-Wei Zhou, Jing-Yang Liu et al.· Applied Sciences· 0 citations
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