What is the impact of reducing the weight of aircraft on the emissions they produce?
On average, an aircraft will burn about 0.03kg of fuel for each kilogramme carried per hour. This number will be slightly higher for shorter flights and for older aircraft and slightly lower for longer flights and newer aircraft. Based on that average, and given that the total commercial fleet combined flies about 57 million hours per year, saving one kilogramme on each flight could save roughly 1,700 tonnes of fuel and 5,400 tonnes of CO2 per year.
