B777 Structural Composition

B777 Structural Composition

1. FUSELAGE

   • KELL BEAM BELLY STRINGERS CROWN STRINGERS *AL 7150-T77
   • SKIN *Al 2xxx-T3, -T42, -T36

2. WING

   • UPPER SKIN *AL 7055-T77
   • LOWER SKIN *AL 2xxx
   • STRINGERS *AL 7150-T77
   • FLAPS, AILERONS, SPOILERS *CFRP (carbon fiber Reinforced Plastic)
   • WINGBOX *AL7055-T77 & *AL 7150-T77

3. EMPENNAGE

   • VERTICAL STABILIZER *Toughened CFRP
     • RUDDER *CFR *FiberGlass
       • (Carbon Fiber Reinforced Plastic)
   • HORIZONTAL STABILIZER *Toughened CFRP
     • ELEVATOR *CFR *FiberGlass

4. LANDING GEAR *Ti 10-2-3 in the Truck Beam

5. POWERPLANTS *Ti *Ti B21S *AL

   • NACELLES PYLONS INLET COWL *CFRP *Perforated CFRP/Nomex

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