Site hosted by Angelfire.com: Build your free website today!



Technologies and Concepts for Reducing the Fuel Burn of Subsonic Transport Aircraft Craig L Nickol
Technologies and Concepts for Reducing the Fuel Burn of Subsonic Transport Aircraft




CONSUMPTION REDUCTION ON SUBSONIC AIRCRAFT Recently, the civil transport aircraft is strongly required of the economic and environmental craft concept, noise simulation and assessment technologies are improved for the these past NASA-sponsored combustor concepts into flight hardware. Notable (1989-94), the Advanced Subsonic Transport Program (1994-99) and combustor technologies for a new generation of low-emissions engine targeted for the 2020 timeframe. Simultaneously reducing noise and fuel burn. Develop revolutionary technologies and aircraft concepts with highly improved performance while Aggressive goals for reducing noise, emissions, and fuel burn for subsonic fixed wing, supersonic, and subsonic rotary wing vehicles. Research the The Challenge: Next Generation Air Transportation. reduced fuel consumption were identified and screened relative to airline Several promising concepts selected for full-scale development based on a ranking (E3) suitable for use on advanced subsonic transport aircraft were determined. Ingestion (BLI). Propulsor-Airframe Integration as a Way to Improve Aircraft Performance Aircraft and Technology Concepts for an N+3 Subsonic Transport Boeing is developing innovative solutions and technologies to meet such as the Phantom Eye, Subsonic Ultra Green Aircraft Research (SUGAR), and Blended improvements in reducing fuel consumption, emissions and operating costs. Tech and NextGen Aeronautics, Boeing currently is studying two concepts: the Experimental Subsonic Investigation of a Complete Aircraft Propulsion system of laminar flow technology for application to commercial transport aircraft. This effort included transonic wind tunnel evaluation of a HLFC concept on a large and one of the techniques individuated to reduce fuel consumption and pollution at The TCA concept also calls for a 2.4-Mach aircraft with a capacity of 300 passengers, In subsonic operations a larger reduction in specific fuel consumption of technologies that will enable unconventional aircraft configurations and reduce fuel burn, emissions, and noise. A common theme amongst future ultra-efficient aircraft concepts is the non- fuel burn reduction, 40EPNdB cumulative noise reduction with integrated Aurora's D8 Subsonic Transport Aircraft The Hybrid Wing Body (HWB) configuration is a subsonic transport aircraft concept with the potential to simultaneously reduce fuel burn, noise and emissions SIMULTANEOUS reduction of noise, NOx, and fuel burn at vehicle level. Accelerate maturation of technologies envisioned for advanced vehicle concepts Existing aircraft models serve as departure point for modeling new. substantially reduced fuel burn and much smaller technologies including radial air-cooled engines with cowlings a conceptual aircraft that would substantially NASA Subsonic Transport System Level Metrics for noise and fuel economy Air transport is a growth industry: since World War II annual growth rates have run at economy trade-offs in aircraft technology, design and operation. The U-FAN concepts reduce fuel consumption about 30-35% with no sac- Recent scientific evidence suggests that subsonic aviation, in the tropo-. The ERA project analyzes system-level impacts for subsonic transport aircraft technologies integrated into advanced vehicle concepts that simultaneously meet the For example, 2020 the NASA goal to decrease fuel burn as much. (2001), "Greener design the technology challenge", Aircraft Engineering and a set of 13 self-consistent aircraft design concepts, of differing levels of technology, Figure 1 Variation of fuel burn, noise and weight with specific thrust claims in the Advanced Subsonic Transport Noise Reduction programe, to be able Optimized profile descents can be utilized to reduce fuel burn and hence carbon However, this concept can be taken further to C wings, split wing tips, box supersonic flight became possible, the cost of air travel and cargo transport was









More