Engine > J79-GE-8 > J79-GE-10/17 > J79-GE-15 > J79-GE-8
Physical Dimensions
Compressor Stages 17 17 17 17
Turbine Stages 3 3 3 3
Maximum Diameter (Inches) 38.3 39.1 38.3 38.3
Length (Inches) 208.5 208.7 208.4 208.5
Dry Weight (Lb.) 3,695 3,855 3,699 3,695
Power Specifications
Specific Fuel Consumption
at Maximum Power 		1.93 1.93 1.94 1.93
Max. Power at Sea Level 17,000 17,820 17,000 17,000
Overall Pressure Ratio
at Maximum Power 		12.9 13.4 12.9 12.9
 
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Engine > J85-GE-5J > J85-17A/B > J85-21  
Physical Dimensions
Compressor Stages 8 8 8  
Turbine Stages 2 2 2  
Maximum Diameter (Inches) 21 17.7 26.1  
Length (Inches) 104.6 40.5 117  
Dry Weight (Lb.) 584 400 684  
Power Specifications
Specific Fuel Consumption
at Maximum Power 		2.2 0.99 2.13  
Max. Power at Sea Level 3,850 2,850 5,000  
Overall Pressure Ratio
at Maximum Power 		6.7 6.9 8.3  
 
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