This comment talks about next-gen engines as the driver for new airframe designs: https://news.ycombinator.com/item?id=45431849 https://news.ycombinator.com/ite

This comment talks about next-gen engines as the driver for new airframe designs: https://news.ycombinator.com/item?id=45431849 https://news.ycombinator.com/item?id=45431849 Those engines will be a major driver of whether “better” is achieved, in particular maintenance costs and fuel economy will need to move the needle.