Cover Story

The way to net-zero

By Keith Button

June 2021

The world’s top two commercial aircraft manufacturers have radically different views about how to curb the carbon footprint of air travel between now and 2050. Airbus’ vision of developing hydrogen-powered aircraft for all but the longest routes has produced an air of excitement, while Boeing’s caution about hydrogen could provide a reality check. Keith Button spoke to executives from both companies. Here is what he learned.

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Engineering Notebook

Hearing aircraft that don’t yet exist

By Keith Button

June 2021

Designers and urban planners would love to know what the coming class of urban air mobility aircraft will sound like. The trouble has been that many of the designs are still at the digital blueprint stage. Keith Button tells the story of a NASA-developed software that’s poised to solve the problem.

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