Rationale: Modern jet engines are more frequently employing integrally bladed rotors (IBRs) in the design of their fan and compressor rotor stages. Due to the inherent design nature of an integrally bladed rotor (IBR), which is fabricated from a single work piece with no removable and loosely-attached components, the requirement for a rotating speed capability is rendered unnecessary.
Tools and equipmentGas turbines
Also known as: SAE ARP 6217
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