Maximizing aircraft fuel efficiency: Engines matter

Part 4 in a series featuring interviews with experts who worked with the ICCT on our cost assessment of near- and mid-term technologies to improve new aircraft fuel efficiency. The aim of the series is to highlight the potential fuel efficiency improvements of "clean-sheet" aircraft designs, to give a sense of how they influence the fuel efficiency trends in general, the risks that come with them, and, most importantly, what might be done to encourage them.