Patent ID: 8747072

Claim:
An airfoil for a first stage compressor blade, the airfoil comprising: a plurality of chord lengths, a plurality of stagger angles, and a plurality of camber angles at a plurality of divisions, respectively, along an airfoil height starting from a reference point at a first end of the airfoil extending to a second distal end, wherein: at a first division starting from the reference point, the airfoil height is 0.000 mm ±10 mm, the stagger angle is 18.300 degrees ±1°, the chord length is 128.000 mm ±10 mm, and the camber angle is 33.400 degrees ±1°, at a second division between the first division and the second distal end of the airfoil, the airfoil height is 43.890 mm ±10 mm, the stagger angle is 24.100 degrees ±1°, the chord length is 131.000 mm ±10 mm, and the camber angle is 28.900 degrees ±1°, at a third division between the second division and the second distal end of the airfoil, the airfoil height is 85.070 mm ±10 mm, the stagger angle is 28.778 degrees ±1°, the chord length is 133.800 mm ±10 mm, and the camber angle is 24.531 degrees ±1°, at a fourth division between the third division and the second distal end of the airfoil, the airfoil height is 142.690 mm ±10 mm, the stagger angle is 34.291 degrees ±1°, the chord length is 137.700 mm ±10 mm, and the camber angle is 18.702 degrees ±1°, at a fifth division between the fourth division and the second distal end of the airfoil, the airfoil height is 196.250 mm ±10 mm, the stagger angle is 38.600 degrees ±1°, the chord length is 141.000 mm ±10 mm, and the camber angle is 14.300 degrees ±1°, at a sixth division between the fifth division and the second distal end of the airfoil, the airfoil height is 246.520 mm ±10 mm, the stagger angle is 42.215 degrees ±1°, the chord length is 143.500 mm ±10 mm, and the camber angle is 11.500 degrees ±1°, at a seventh division between the sixth division and the second distal end of the airfoil, the airfoil height is 294.120 mm ±10 mm, the stagger angle is 45.647 degrees ±1°, the chord length is 145.200 mm ±10 mm, and the camber angle is 9.507 degrees ±1°, at an eighth division between the seventh division and the second distal end of the airfoil, the airfoil height is 324.620 mm ±10 mm, the stagger angle is 48.025 degrees ±1°, the chord length is 146.000 mm ±10 mm, and the camber angle is 8.255 degrees ±1°and at a ninth division between the eighth division and the second distal end of the airfoil, the airfoil height is 354.290 mm ±10 mm, the stagger angle is 50.500 degrees ±1°, the chord length is 354.390 mm ±10 mm, and the camber angle is 7.000 degrees ±1°.