Design
The 787's design features lighter-weight construction. The aircraft is 80% composite by volume. Its materials, listed by weight, are 50% composite, 20% aluminum, 15% titanium, 10% steel, and 5% other. Aluminum is used on wing and tail leading edges, titanium used mainly on engines and fasteners, with steel used in various places.
External features include raked wingtips and engine nacelles with noise-reducing serrated edges. The longest-range 787 variant can fly 8,000 to 8,500 nautical miles (15,000 to 15,700 km), enough to cover the Los Angeles to Bangkok or New York City to Hong Kong routes. It has a cruising airspeed of Mach 0.85 (561 mph, 903 km/h at typical cruise altitudes).
Read more about this topic: Boeing 787 Dreamliner
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—Freeman Dyson (b. 1923)
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—Henry David Thoreau (1817–1862)