The energy efficiency improvements of new commercial aircrafts have been close to zero since the beginning of the decade despite the oil price hike, a study published by the International Council on Clean Transportation (ICCT) on Tuesday has shown.
Researchers estimated the fuel consumption of thousands of aircraft over the past 50 years. The ICCT found efficiency gains dropped during the 1990s. Since 2000 efficiency has improved only 0.29% annually on a tonne per kilometre basis (passengers and freight). Efficiency remained flat on a seat/km basis.
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