Comparison of Turbofans

Engine CF34-3A CF34-3A1 CF34-3B CF34-3B1
Physical Information
Fan/Compressor Stages 1/14 1/14 1/14 1/14
Low-Pressure Turbine / High-Pressure Turbine 4/2 4/2 4/2 4/2
Maximum Diameter (Inches) 49 49 49 49
Length (Inches) 103 103 103 103
Power Specifications
Max Power at Sea Level 9,220 9,220 9,220 9,220
Overall Pressure Ratio at Max Power 21 21 21 21

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Engine CF34-8C1 CF34-8C5 CF34-8C5B1 CF34-8E5
Physical Information
Fan/Compressor Stages 1/10 1/10 1/10 1/10
Low-Pressure Turbine / High-Pressure Turbine 4/2 4/2 4/2 4/2
Maximum Diameter (Inches) 52 52 52 53.4
Length (Inches) 128 128 128 121.2
Power Specifications
Max Power at Sea Level 13,790 14,510 13,790 14,510
Overall Pressure Ratio at Max Power 28:1 28.5:1 28:1 28.5:1

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Engine CF34-10A CF34-10E CF6-6D1A CF6-6K/K2
Physical Information
Fan/Compressor Stages 1/3/9 1/3/9 1/1/16 1/1/16
Low-Pressure Turbine / High-Pressure Turbine 4/1 4/1 5/2 5/2
Maximum Diameter (Inches) 57 57 57 57
Length (Inches) 90 145.5 188 188
Power Specifications
Max Power at Sea Level 18,285 20,000 41,500 41,500
Overall Pressure Ratio at Max Power 29:1 29:1 25.2 25

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Engine CF6-50C1/C2 CF6-50C2B CF6-50C2R CF6-50E/E1
Physical Information
Fan/Compressor Stages 1/3/14 1/3/14 1/3/14 1/3/14
Low-Pressure Turbine / High-Pressure Turbine 4/2 4/2 4/2 4/2
Maximum Diameter (Inches) 105 105 105 105
Length (Inches) 183 183 183 183
Power Specifications
Max Power at Sea Level 52,500 54,000 51,500 52,500
Overall Pressure Ratio at Max Power 30.4 31.1 29.2 30.1

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Engine CF6-50E2 CF6-50E2B CF6-80A CF6-80A2
Physical Information
Fan/Compressor Stages 1/3/14 1/3/14 1/3/14 1/3/14
Low-Pressure Turbine / High-Pressure Turbine 4/2 4/2 4/2 4/2
Maximum Diameter (Inches) 105 105 98 98
Length (Inches) 183 183 167 167
Power Specifications
Max Power at Sea Level 52,500 54,000 48,000 50,000
Overall Pressure Ratio at Max Power 30.4 30.9 27.3 28.4

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Engine CF6-80A3 CF6-80C2A1 CF6-80C2A2 CF6-80C2A3
Physical Information
Fan/Compressor Stages 1/3/14 1/4/14 1/4/14 1/4/14
Low-Pressure Turbine / High-Pressure Turbine 4/2 5/2 5/2 5/2
Maximum Diameter (Inches) 106 106 106 106
Length (Inches) 167 168 168 168
Power Specifications
Max Power at Sea Level 50,000 59,000 53,500 60,200
Overall Pressure Ratio at Max Power 28.4 30.4 27.8 31.1

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Engine CF6-80C2A5 CF6-80C2A5F CF6-80C2A8 CF6-80C2B1
Physical Information
Fan/Compressor Stages 1/4/14 1/4/14 1/4/14 1/4/14
Low-Pressure Turbine / High-Pressure Turbine 5/2 5/2 5/2 5/2
Maximum Diameter (Inches) 106 106 106 106
Length (Inches) 168 168 168 168
Power Specifications
Max Power at Sea Level 61,300 61,300 59,000 56,700
Overall Pressure Ratio at Max Power 31.5 31.5 30.4 29.3

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Engine CF6-80C2B1F CF6-80C2B2 CF6-80C2B2F CF6-80C2B4
Physical Information
Fan/Compressor Stages 1/4/14 1/4/14 1/4/14 1/4/14
Low-Pressure Turbine / High-Pressure Turbine 5/2 5/2 5/2 5/2
Maximum Diameter (Inches) 106 106 106 106
Length (Inches) 168 168 168 168
Power Specifications
Max Power at Sea Level 58,000 52,500 52,700 57,900
Overall Pressure Ratio at Max Power 29.9 27.1 27.4 29.9

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Engine CF6-80C2B4F CF6-80C2B5F CF6-80C2B6 CF6-80C2B6F
CF6-80C2B6FA
CF6-80C2B7F
Physical Information
Fan/Compressor Stages 1/4/14 1/4/14 1/4/14 1/4/14
Low-Pressure Turbine / High-Pressure Turbine 5/2 5/2 5/2 5/2
Maximum Diameter (Inches) 106 106 106 106
Length (Inches) 168 168 168 168
Power Specifications
Max Power at Sea Level 58,100 60,800 60,800 60,800
Overall Pressure Ratio at Max Power 29.9 31.4 31.1 31.4

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Engine CF6-80C2B8F CF6-80C2D1F CF6-80E1A2 CF6-80E1A3
Physical Information
Fan/Compressor Stages 1/4/14 1/4/14 1/4/14 1/4/14
Low-Pressure Turbine / High-Pressure Turbine 5/2 5/2 5/2 5/2
Maximum Diameter (Inches) 106 106 114 114
Length (Inches) 168 168 168 168
Power Specifications
Max Power at Sea Level 60,800 61,960 65,800 69,800
Overall Pressure Ratio at Max Power 31.4 31.8 32.4 34.8

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Engine CF6-80E1A4 GE90-76B GE90-77B GE90-85B
Physical Information
Fan/Compressor Stages 1/4/14 1/3/10 1/3/10 1/3/10
Low-Pressure Turbine / High-Pressure Turbine 5/2 6/2 6/2 6/2
Maximum Diameter (Inches) 106 134 134 134
Length (Inches) 168 287 287 287
Power Specifications
Max Power at Sea Level 68,100 76,400 77,000 84,700
Overall Pressure Ratio at Max Power 33.7 40 40 40

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Engine GE90-90B GE90-94B GE90-110B1 GE90-115B
Physical Information
Fan/Compressor Stages 1/3/10 1/3/10 1/4/9 1/4/9
Low-Pressure Turbine / High-Pressure Turbine 6/2 6/2 6/2 6/2
Maximum Diameter (Inches) 134 134 135 135
Length (Inches) 287 287 287 287
Power Specifications
Max Power at Sea Level 90,000 93,700 110,100 115,300
Overall Pressure Ratio at Max Power 40 40 42 42