NASA STI Repository (National Aeronautics and Space Administration) · 2011 · 19 citations · 0 references
Open access
EngineeringAerospace EngineeringMechanical EngineeringAircraft DesignInternal Combustion EnginesPropulsionEngine DesignEngine PerformanceEngine SystemsEngine TestingPropulsion IntegrationTurbofan EnginesBypass RatioEmissions Reduction StrategyEngine Core DesignEngine Performance TestingFlight Test EngineeringHigh-bypass Turbofan EnginesTurbofan PropulsionUltra-high-bypass Ratio Engines
In this presentation, an overview of the research being conducted by the ERA Project in Ultra High Bypass aircraft propulsion and in partnership with Pratt & Whitney with their Geared TurboFan (GTF) is given. The ERA goals are shown followed by a discussion of what areas need to be addressed on the engine to achieve the goals and how the GTF is uniquely qualified to meet the goals through a discussion of what benefits the cycle provides. The first generation GTF architecture is then shown highlighting the areas of collaboration with NASA, and the fuel burn, noise and emissions reductions possible based on initial static ground test and flight test data of the first GTF engine. Finally, a 5 year technology roadmap is presented focusing on Ultra High Bypass propulsion technology research areas that are being pursued and being planned by ERA and P&W under their GTF program.