none it has wheels
The Airbus A380 has 22 wheels. Two smaller 'auxiliary' wheels on a single strut at the front, two sets of under-wing 4-wheel struts and two sets of fuselage mounted six-wheel struts.
The wings give the aircraft 'lift' especially when it is at a slower speed such as landing
Most aircraft have different landing angels dependent on weight, wing shape and stalling speed.
The West Wing - 1999 Hartsfield's Landing 3-15 was released on: USA: 27 February 2002 Germany: 22 June 2009
Upper limit of the white arc.
Flaps generally change the geometry of the wing for landing and take off speeds
Flaps are the devices that extend off the back of the wing. They are used for take off as well as landing. They increase lift and reduce the speed at which airflow over the wing is disrupted, thereby resulting in a slower approach and landing speed.
The term "strut" applies to more than just wheels. A strut is a brace connected at each end, which acts to restrain, or control, the movement of anything. The best example that almost everyone has seen, at least in photographs, is wing struts on an airplane. The struts are the long "bars" that connect from the underside of a top [or high] mounted wing, to the lower edge of the fuselage. This forms a mechanical triangle which reinforces the wing and prevents "flapping" tendencies [bending] of the wing. On bi-planes, the bars [both vertical and angular] are also struts. On most vehicles, a wheel strut connects from a wheel suspension member to the frame or body to restrict the movement of the suspension assembly, which improves control and "rideability." In many late model vehicles, a strut for the front wheel suspension consists of combining a coil spring AND a shock absorber into a single component which is connected from the top of each front wheel to the unibody "frame" in a vertical "tower" which is a part of the unibody.
A straight wing is good for a low-powered, slow moving aircraft. A straight, thick wing is good for short takeoff and landing aircraft, and high-speed, high-thrust aircraft need a swept wing.
The standard dome-shaped parachute is usually 5-10 meters/second. Ram inflated "wing" parachutes can be about zero m/s on landing, just like any wing.
The higher profile wing is optimized for different missions. Often it is better for shorter range turboprop aircraft (propellers). Many military jets and props use the high wing design to keep their engines clear of debris if they are landing on a rough airfield in a war zone.
Upper Deck: 100 Lower Deck: 200 Tail: 300 Doors: 400 Left Wing: 500 Right Wing: 600 Landing Gears: 700 Engines: 800