Comparison of Turboprops

Engine CT7-5A2 CT7-7A CT7-9B/9C CT7-9C3
Physical Information
Compressor Stages 6 6 6 6
Low-Pressure Turbine / High-Pressure Turbine 2/2 2/2 2/2 2/2
Maximum Diameter (Inches) 29 29 29 29
Length (Inches) 96 96 96 96
Dry Weight (Lb.) 783 783 805 807
Power Specifications
Specific Fuel Consumption at Max Power 0.476 0.474 0.471 0.471
Max Power at Sea Level 1,735 shp 1,700 shp 1,870 lbs 1,870 lbs
Overall Pressure Ratio at Max Power 17 17 18 18

Return to Top


Engine CT7-9D CT64-820-4    
Physical Information
Compressor Stages 6 14    
Low-Pressure Turbine / High-Pressure Turbine 2/2 2/2    
Maximum Diameter (Inches) 29 20.1    
Length (Inches) 96 110    
Dry Weight (Lb.) 805 1,145    
Power Specifications
Specific Fuel Consumption at Max Power 0.455 0.49    
Max Power at Sea Level 1,940 shp 3,133 shp    
Overall Pressure Ratio at Max Power 18 12.5