In that presentation I explain some differences and airframes of Boeing 777 Series. This presentation prepared by Kutay Uysal for Ozyegin University, Aircraft General Knowledge (PPL) Lesson.

1. BOEING 777 SERIES
C. KUTAY UYSAL
777-200 /
777-200ER
777-200LR
/ 777
Freighter 777- 300
777-
300ER 777- 8X 777- 9X
Lenght 63.7 m 63.7 m 73.9 m 73.9 m 69.5 m 76.5 m
Wingspan 60.9 m 64.8 m 60.9 m 64.8 m
Unfolded:
71.8 m
Folded:
64.8 m
Unfolded:
71.8 m
Folded:
64.8 m
Tail Height 18.5 m 18.8 m 18.5 m 18.7 m 18.5 m 18.7 m
Fuselage
Width
6.19 m 6.19 m 6.19 m 6.19 m 6.19 m 6.19 m

2.  Large Folding Wing Tips
 Largest Landing Gears and
the Biggest Tires

3. THANK YOU FOR LISTENING
ANY QUESTIONS?

4. OUTLINE
• Technical Details
• Landing Gears
• Folding Wingtips
• Materials
• Bibliography

5. TECHNICAL DETAILS
777-200 /
777-200ER
777-200LR /
777 Freighter
777- 300
777- 300ER
777- 8X 777- 9X
Lenght 63.7 m 63.7 m 73.9 m 73.9 m 69.5 m 76.5 m
Wingspan 60.9 m 64.8 m 60.9 m 64.8 m
Unfolded:
71.8 m
Folded: 64.8
m
Unfolded:
71.8 m
Folded: 64.8
m
Tail Height 18.5 m 18.8 m 18.5 m 18.7 m 18.5 m 18.7 m
Fuselage
Width
6.19 m 6.19 m 6.19 m 6.19 m 6.19 m 6.19 m

6. LANDING GEARS
 777 series features the largest landing gear and the biggest
tires ever used in a commercial jetliner.
 The six-wheel bogies are designed to spread the load of
the aircraft over a wide area without requiring an additional
centerline gear. This helps reduce weight and simplifies the
aircraft's braking and hydraulic systems.
 Each tire of a 777-300ER six-wheel main landing gear can
carry a load of 26,980 kg, which is heavier than other wide-
bodies such as the 747-400

7. FOLDING WINGTIPS
 Large folding wingtips, 6.40 m long, were offered when the 777 was first
launched, to appeal to airlines who might use gates made to
accommodate smaller aircraft, but no airline purchased this option.
 Folding wingtips reemerged as a design feature at the announcement
of the upgraded 777X in 2013.
 Smaller folding wingtips of 3.35 m in length will allow 777X models to
use the same airport gates and taxiways as earlier 777s. These smaller
folding wingtips are less complex than those proposed for earlier 777s,
and internally only affect the wiring needed for wingtip lights.

8. MATERIALS
Composite Materials

9. BIBLIOGRAPHY
 https://en.wikipedia.org/wiki/Boeing_777
 https://tr.wikipedia.org/wiki/Boeing_777
 http://aviation.stackexchange.com/questions/19289/why-has-the-
folding-wing-option-of-the-boeing-777-never-been-ordered
 https://en.wikipedia.org/wiki/Folding_wing
 http://www.flugzeuginfo.net/acdata_php/acdata_7773_en.php