Attritable Aircraft Prompt Changes In Jet Engine Designs

F-84’s J35 jet engine
The first generation of jet engines, such as the F-84’s J35 (pictured), came with 100-hr. time-between-overhaul ratings. Attritable engines may come with a similar service lifetime to achieve affordability targets.
Credit: U.S. Air Force
As a boundary-blurring line of “attritable” aircraft gains interest, the U.S. Air Force is taking a new look at traditional principles of jet engine design with the goal of defining a propulsion system that falls somewhere between expendable and fully reusable. Rolls, Pratt and Kratos enter...

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