Boeing 747 has a total length of 232.9 feet, a wingspan of 2 1 1 foot and a height of 63.8 feet. Its maximum takeoff weight is 875,000 pounds, and its maximum landing weight is 630,000 pounds. Boeing 747 has four turbofan engines, with a maximum cruising speed of 570 mph and a maximum range of 7,260 miles, and can carry 4 16 to 660 passengers.
Boeing 747 is a large passenger plane and one of the most famous planes in the world. It is the fist product of Boeing, widely used in domestic and international flights, and it is a popular aircraft. Boeing 747 can be divided into several versions, including 747- 100, 747-200, 747-300, 747-400 and 747-8. Each version is slightly different in size and performance.
Characteristics of Boeing 747
The wing of Boeing 747 adopts cantilever lower wing, with the relative thickness of wing root 13.44%, outer wing 8% and chord sweep angle 1/4 of 37 30'. Aluminum alloy double beam damage safety structure. An outer low-speed aileron, an inner high-speed aileron and a three-slit trailing edge flap, an aluminum honeycomb spoiler is arranged on the upper surface of the wing, a flap is arranged at the leading edge of the wing, and three Kruger flaps are arranged at the leading edge of the wing near the wing root.
The tail wing is a cantilever aluminum alloy two-way force transmission damaged safety structure, and the full-motion horizontal tail wing. Power plant 4 turbofan jet engine. The engine drives four alternators to supply power for the aircraft, and the auxiliary power unit is equipped with generators. Four independent hydraulic systems and a standby AC hydraulic pump. The landing gear is a five-strut hydraulic retractable landing gear.
The above contents refer to Baidu Encyclopedia-Boeing 747.