Why was the Airbus A380 designed with 22 wheels?

First of all, it is large, 380 is the largest of the civil aircraft in service, empty weight: 276 tons, full load: 560 tons, such a large behemoth, only through a few landing gears to bear weight, wheels must be more.

Nose landing gear x2; left and right main landing gear x4 each; belly auxiliary landing gear x6 each; A total of 22 wheels, the first two demonstrators were also equipped with spare auxiliary tires, and the standard 22 were delivered, and the main suppliers were: Michelin, Ishibashi, etc.).

Secondly: consider it from two aspects, one is to expand the pressure of the fuselage on the ground during the landing process, because there are many wheels, which increases the contact area; The other should be to take into account the problem of ground friction, there are many wheels, the contact area with the ground is large, and the friction force generated is large, because the inertia of the aircraft is too large, and the appropriate increase of wheels can make the aircraft stop faster.

Basic data. Number of drivers: 2

Passenger capacity: 555 (3 class (2 class cabin layout) or 853 (1 class)

Capacity: Metric tons (146,400 lbs) of cargo, which can carry 38 LD3 containers or 163 pallets.

Powerplant: 4x311 kNtons (70,000 lbf). Rolls-Leo-Stront (TRENT) 900 or Engine Alliance GP7200.

Size. Length: 73 m (239 ft 6 in).

Wingspan: meters (261 ft 10 in)

Height: meters (79 feet 1 in).

Wing area: 845 sq m (9,100 sq ft).

Weight and fuel capacity.

Typical empty weight: 276,800 kg (610,200 lb).

252,200 kg (556,000 lbs).

Maximum take-off weight (MTOW): 560,000 kg (1,235,000 lb).

Maximum fuel capacity: 310,000 liters (81,890 US gallons).

Performance. Typical cruise speed: Mach (about 1,050 kilometers per hour or 647 miles per hour or 562 knots).

Maximum cruise speed: Mach.

Range: 14,815 km (8,000 nautical miles).

Maximum cruising altitude: 13,100 m (43,000 ft).

Reduce the pressure of the fuselage on the runway, taxiway, and apron.

Nose landing gear x2; left and right main landing gear x4 each; belly auxiliary landing gear x6 each; A total of 22 wheels, the first two demonstrators were also equipped with spare auxiliary tires, and the standard 22 were delivered, and the main suppliers were: Michelin, Ishibashi, etc.).

Airbus A380 is a four-engine, 550-seat ultra-large long-range wide-body passenger aircraft developed and produced by Airbus Industry in Europe, Airbus A380 is the largest passenger aircraft when it is put into production, and is known as a giant in the air.

The Airbus A380 has the advantage of a single passenger capacity, carrying up to 525 passengers in a typical three-class (first, business and economy) layout. The Airbus A380 aircraft is considered by Airbus to be its "flagship" for the 21st century. After the A380 entered service, it broke the 35-year record of the Boeing 747 in the field of long-range ultra-large wide-body airliners, ending the 30-year monopoly of the Boeing 747 in the market and becoming the largest civilian airliner in terms of passenger capacity (although the aircraft with the largest payload is still Antonov's An-225 Dreamliner).

A380 has 22 wheels, 2 nose landing gear wheels, 8 main landing gear under the wings, 12 belly main landing gear, at present, because the 380 is not widely used, each aircraft has three spare auxiliary wheels, a total of 25.