Advanced booster rotor blade

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Concave surface

Reexamination Certificate

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Reexamination Certificate

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07967571

ABSTRACT:
A rotor airfoil having a leading edge extending from a root to a tip, an inner span region and an outer span region the leading edge having a sweep angle profile such that the sweep angle increases from the root a first height location at a first rate of change of sweep angle that is substantially constant and thereafter increases at a second rate of change of sweep angle that is substantially constant.

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