Pratt Engines
Turbofans
PW300
- Mid-Sized Business Jets
- 4700 to 8000 lb thrust
Design
- Fan
- Foreign object damage titanium blades
- 4:1 Bypass ratio
- Outlet Guide Vanes
- 2 Spool engine
- 5 stage high pressure compressor
- 4-stage axial, single centrifugal
- Integrally bladed rotors reduce part count
- Electronically controlled variable Inlet Guide Vanes and bleed valves
- Easy borescope access
- Through-flow combustor
- TALON impingement and diffusion cooled
- Low emissions
- 2 stage cooled high pressure turbine
- Advanced materials and cooling technology
- 3 stage low pressure turbine
- Free turbine, shrouded blades
- FADEC
FOD fan:
Design Considerations
1. Titanium alloys (e.g., Ti-6Al-4V) are standard for fan blades because they combine high specific strength, fracture toughness, and corrosion resistance with reasonable density—good for impact tolerance vs. aluminum at this size class.
Turbofans
PW500
- Light to Mid-Sized Business Jets
- 2900 to 4500 lb thrust
Design
- Fan
- Wide Chord
- Foreign object damage titanium blades
- 2 Spool engine
- 3 stage high pressure compressor
- 2-stage axial, single centrifugal
- Integrally bladed rotors reduce part count
- Series add axial boost stage driven by fan
- Reverse-flow combustor
- Low emissions
- Single stage cooled high pressure turbine
- Advanced materials and cooling technology
- 2 stage low pressure turbine
- Free turbine, shrouded blades
- EEC with backup FADEC
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Turbofans
PW600
- Light Jets
- 900 to 3000 lb thrust
Design
- Fan
- shock management design
- 2 Spool engine
- 2 stage high pressure compressor
- low parts count
- Reverse-flow combustor
- Low emissions
- Single stage high pressure turbine
- Low parts
- Single stage low pressure turbine
- Free turbine, shrouded blades
- FADEC
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Turbofans
PW800
- Large, long range Jets
- 10,000 to 20,000 lb thrust
Design
- Single piece fan
- improved noise and vibration characteristics
- Large Bypass duct
- Mixer
- High pressure turbine
- multiple stage
- state of art cooling, with active tip clearance control
- Talon X combustor
- FADEC
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