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System Design Review

System Design Review. EcoJet Group Two. Mike Dumas Ben Scott Jason Darby. Adam Naramore Gaetano Settineri Tim Sparks. David Wilson. Target Sales to Fractional Operators, NetJets, FlexJets etc. Sales also to individual companies.

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System Design Review

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  1. System Design Review EcoJet Group Two Mike Dumas Ben Scott Jason Darby Adam Naramore Gaetano Settineri Tim Sparks David Wilson

  2. Target Sales to Fractional Operators, NetJets, FlexJets etc. Sales also to individual companies. Benefits Include: Reduced Fuel Costs as Cost of Petroleum Rises, Clean Renewable Fuels No Alternative Fuel Powered Business Aircraft are Currently in Operation Market Review

  3. Current Design Specs

  4. Mission RangeBased From Wichita Kansas • Blue Circle = 1100nm Range Concentric with Wichita Kansas • 1250nm to Seattle • 1200nm to San Francisco • 1250nm to Boston 1700 nm Range is enough to span both coasts and reach any destination in the Continental U.S. from Wichita

  5. Pugh’s Method

  6. General ConceptsTraditional

  7. General ConceptsBox Diamond Wing

  8. Primary Concept • Preliminary CAD Drawings • Diamond Wing Concept • 2 turbo-fan engines • S-duct intake • Wingspan ≈ 41 ft • Length ≈ 50 ft

  9. Cabin Layout Similar to Hawker Series Aircraft Pilot Seats Lavatory Controls Closets Chairs Door Refreshment Center

  10. Trade Studies • Higher end aircraft cost roughly $10 million • Cessna XLS • Operating cost of $1500 per hour

  11. Sizing Trade Studies

  12. Sizing Trade Studies

  13. Proposed Engine Specs • Twin Spool Turbofan Engine • 4 axial stage compression • 1 centrifugal stage

  14. Specific Fuel Consumption • ONX On-Design engine analysis program • Static Engine Results at Sea Level

  15. Thrust to Weight Ratio Constraint Diagram • Green is the maximum possible Wing Loading • Design Choice is 100 lb/ft2 or less • Thrust to weight goal is the shaded area • L/D = 15

  16. Alternate Fuel • Biodiesel Fuel • Range from B20 to B100 • Need approx 13% more fuel (comp with JetA) • Based on fuel flow test data and Heat Capacity

  17. Alternate Fuel • Proposed fuels • Methane, Biodiesel, Biokerosene • Why Biodiesel? • Biodiesel requires few engine alterations • Biodiesel most mature of the proposed fuels • Current cost is cheaper • ($3.62 per gal vs $4.89 (jet A) at John Wayne Airport in Orange County, CA • Safer to transport compared to Methane

  18. Alternate Fuel • Emissions Benefits • 50% Reduction CO • 40% Hydrocarbon Reduction • NOx Emissions Reduction Jet A Biodiesel Substantial Particle Emission Reduction Using Biodiesel

  19. Comparison with Citation XLS

  20. Looking to the Future • Refined Analysis of Box Wing Concept • CFD analysis • Comparison to Traditional Concept • Maintain/Refine Cust. and Engr. Requirements • Concept Selection • Geometry optimization • Propulsion optimization

  21. Questions?

  22. Backup Slides

  23. Engine Performance at Altitude http://en.wikibooks.org/wiki/Jet_Propulsion/Mechanics

  24. Trade Studies • A maximum takeoff weight of 20,000 lbs • Comparable to the aircraft database

  25. Trade Studies • Research has shown the our customers value comfort as much as range. • Aiming for high cabin volume at a lower cost then competitors

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