Comparison of Turboshafts

Engine CT7-2A CT7-2D CT7-2D1 CT7-6/6A
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) 25 25 25 25
Length (Inches) 47 47 47 48.2
Dry Weight (Lb.) 429 442 466 493
Power Specifications
Specific Fuel Consumption at Max Power 0.481 0.481 0.481 0.457
Max Power at Sea Level 1,725 shp 1,725 shp 1,725 shp 2,000 shp
Overall Pressure Ratio at Max Power 17 17 17 18

Return to Top


Engine CT7-8 CT58-140    
Physical Information
Compressor Stages 6 10    
Low-Pressure Turbine / High-Pressure Turbine 2/2 2/1    
Maximum Diameter (Inches) 26 20.7    
Length (Inches) 48.8 59    
Dry Weight (Lb.) 537 340    
Power Specifications
Specific Fuel Consumption at Max Power 0.450 0.61    
Max Power at Sea Level 2,520 shp 1,500 shp    
Overall Pressure Ratio at Max Power 21 8.4