Viper (Rolls Royce)
 
| Specification | Viper 680 (typical) | 
|---|---|
| Application | Jet Trainers (17 types!) | 
| Thrust | 4360 lb | 
| Weight | 836 lb | 
| Pressure Ratio | 6.75 : 1 | 
| Compressor Stages | 8 (axial) | 
| Combustion | Annular vaporizing | 
| Turbine Stages | 2 | 
 Turbine Engine Basics : Turbofans
  
  Turbine Engine Basics : Turbofans 
   
