Neither f119 nor f135 are 1:9 engines, they are of visibly lower ratio. That's because they got much heavier than previous generations, because of a bunch of other features added to them, which previous generations did not have as requirements. If modern engines were stripped of all those added requirements, I guess they would be 1:9 ratio engines.
Chinese Engine Development
- Thread starter jackbh
- Start date
I think improved materials and design would achieve a noticeably higher T/W under the same requirements.
