Details about the Boeing 787, The Dreamliner: Seats: 210 to 250 Range: 8,800 to 9,400 miles Wingspan: 197 feet Length: 186 feet Height: 56 feet Cruise speed: Mach 0.85, about 650 mph Cargo volume: 4,400 cubic feet Maximum takeoff weight: 502,500 pounds List price: $193.5 million, although airlines often negotiate discounts Planes ordered: 797 Components: 50 percent carbon fiber, 20 percent aluminum, 15 percent titanium, 10 percent steel, 5 percent other.