improving-durability-of-turbine-rotor-by-designMinimized stress concentration and shot-peened for additional "loading play"Damage-tolerantdisk materialLabyrinth ringsnot integral withthe diskRobust rotor fastening with no plugs or socketsNo bores for boltsor cooling air in the membranesSingle-crystal blades withhighly effective coolingImproving the durability in the high-pressureturbine area of a modern fighter aircraft turbineengine: