Higher Bypass Propulsor
- Improved low noise fan (part of Noise Element)
- Improved lightweight static structure
materials & lifing TRL 6 3
- Fan bypass duct optimization TRL 4 2
- Improved lubrication and health and usage
monitor for geared, very high-bypass engines TRL 4 2
Reduced Emissions Combustor
- Compact high pressure and
temperature combustor TRL 6 6/5
Technologies required For 2005 Entry Into Service AST Very High Bypass Engines
High Efficiency Core
- Improved turbomachinery aerodynamic,
aeroelastic, & film cooling codes TRL 6 3
- Improved High OPR materials with
enhanced crack growth resistance TRL 5 3
- Improved controls technology TRL 6 3
AST Propulsion
Advanced Subsonic Technology
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