Advanced Regional Jet

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Advanced Regional Jet

Darin L. Van PeltAA 241A,B

16 March 2006

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Market Outlook 30-120 Seat Segment

• Revenue Passenger Kilometers (RPK) worldwide expected to outpace GDP– Averaging 5.4%

• China, Middle East and Latin America showing most significant growth – China (RPK) 8%

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Mach Passengers Range (nm) Field Length (ft) 0.80 85 1600 6500

Mission

• Competitors: Bombardier CRJ-900, C-Series and Embraer E-Jets

• Market as all luxury cabin – Wider Seats (20.25”) – Longer Pitch (34”)– Faster (.85 Mach)

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Baseline DesignAA 241A

Overview• Length: 110 ft• Sref: 750 ft2

• Span: 75 ft• Cruise Alt: 35 000 ft• MTOW: 82 000 lb• Thrust/Engine:

14 500 lb

Performance• Range: 871 nm• 2nd Segment Climb:

2.7%• T.O. Field Length:

8211 ft• Landing Field Length:

4838 ft

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Optimization ApproachBaseline Design

• L/D: 13.3• einviscid: 0.65

Optimization • einviscid

– Aspect Ratio– Sweep– Supercritical Airfoil– Tail volume:

• Wing position, Sh/Sref

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Optimized Design• Ticket Price: $241• Aircraft Cost: $24.4 M

• L/D: 16• einviscid: 0.86

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Planform View

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Design ChangesIs/Was

Baseline Optimized MTOW (lb) 82 000 91 556 Sref (ft2) 750 738 Span (ft) 75 89.6

Aspect Ratio 7.5 10.8 Sweep 30 35.5

Thrust/engine (lb) 14 500 16 500 TO Field Length (ft) 8211 6174

Landing Field Length (ft) 4838 5412 Second Seg. Climb (%) 2.7 2.8

Range (nm) 871 1680 Initial Cruise Alt (ft) 35 000 30 000 Final Cruise Alt (ft) 35 000 41 250

Wing Position 0.5 0.42 Sh/Sref 0.25 0.32

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RJ Comparison

• Best In Class:– Seat Width / Pitch– Cruise Speed

CRJ-900 ER Embraer 170 LR

Bombardier C110 ER

Adv. RJ

MTOW (lb) 80 500 82 011 133 200 91 556 Sref (ft2) 760 - - 738 Span (ft) 81.5 85.3 116 89.6

Thrust/engine (lb) 14 255 GE CF34-8C5

14 200 GE CF34-8E

20 600 16 530 GE CF34-10E

TO Field Length (ft) 6105 5500 5200 6174 Landing Field Length (ft) 5235 4000 4900 5412

Cruise Mach 0.78-0.81 0.82 0.82 0.85 Range (nm) 1593 2000 3000 1680 Passengers 86 70 110 86

Seat Width/Pitch (in) ? / 31 18.25 / 32 18.5 / 32 20.25 / 34

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Conclusions

• Through AA 241, we have created a feasible Regional Jet

• Will the 30-120 seat market support another airplane?

Continued Work• Elliptical fuselage• Advanced Structural Technology• Optimize span efficiency through

twisting and add Winglets• Trade Luxury cabin vs. Ticket and

Aircraft Cost and Market Edge• Wing Mounted Engine Study with

Conventional Tail Elliptical fuselage on E-Jet