Landing is the last part of a flight, where a flying animal or aircraft returns to the ground. A similar process is correctly called alighting when returning to water. Hitting the ground too hard is prevented by wings (including rotor wings), a parachute or rockets or a vertically directed jet engine; in the case of a balloon the buoyancy is slightly decreased for a soft landing. Aircraft usually land at an airport on a runway or helicopter landing pad. For aircraft or birds, landing is generally accomplished by trading airspeed for lift. The first phase is the flare, where the rate of descent will be reduced by transitioning to a stall attitude. After slowing down, the plane changes pitch into the landing attitude shortly before touching down. In a perfect touchdown, assuming there is no crosswind, contact with the ground is made just as the forward speed is reduced to the point where there is no longer sufficient lift to remain aloft. If there is a crosswind, techniques such as a crab landing or a slip landing are used to land the plane safely. During landing, the ground effect becomes significant for aircraft. This tends to make the aircraft "keep flying" when it ordinarly would not (at higher altitudes) and therefore to extend the distance required to land. [[image:mute.swan.touchdown.arp.jpg|thumb|right|250px|A Mute Swan alighting. Note the ruffled feathers on top of the wings indicate that the swan is flying at the stalling speed. The extended and splayed feathers act as lift augmenters in the same way as an aircraft's slats and Flap (aircraft).]] Large jet transport aircraft land differently than described above. If the pilot waited for the aircraft to stall too much runway length would be used so the flare just reduces the rate of descent at touchdown and the aircraft is flown onto the runway. Usually lift dumpers are immediately deployed to dramatically reduce the lift and transfer the aircraft's weight to its wheels, where mechanical braking can take effect. To land on an aircraft carrier, an aircraft (moving at, perhaps, 150 mph (240 km/h)) is equipped with tailhooks to engage one of up to four arresting cables stretched across the deck, stopping the aircraft within 320 feet (100 m) after engaging one of the cables. To assist safe landings, the carrier will usually steam directly into wind at full speed, thus reducing aircraft's speed relative to the carrier deck, and eliminating any crosswind. Aviation
Wouldn't the buoyancy of a balloon be increased to cushion the landing ? User:Mike Stramba 16:15, 1 Nov 2003 (UTC) :I think what is meant is decreased compared with when the balloon stays in the air. However, the buoyancy of a balloon can perhaps be increased again at the last stage of landing, so that it hits the ground with a lower speed than with which is was going down. - User:Patrick 18:26, 1 Nov 2003 (UTC)
See other meanings of words starting from letter:
Words begining with Landing:
Landing
Landing
Landings
Landings_at_Helles
Landings_at_Salerno
Landings_at_Suvla_Bay
Landings_on_other_planets
Landingville
Landingville,_PA
Landingville,_Pennsylvania
Landing_at_Anzac
Landing_at_Anzac_Cove
Landing_at_Anzac_Cove
Landing_at_Cape_Helles
Landing_at_Gaba_Tepe
Landing_at_Helles
Landing_at_Kip's_Bay
Landing_at_Suvla
Landing_at_Suvla_Bay
Landing_Craft
Landing_craft
Landing_craft
Landing_Craft_Air_Cushion
Landing_craft_tank
Landing_Craft_Utility
Landing_gear
Landing_Gear_Extenders
Landing_pad
Landing_Platform,_Helicopter
Landing_Platform_Dock
Landing_platform_dock
Landing_ship
Landing_Ship_Tank
Landing_Vehicle_Tracked
Landing_Zone
Landing_zone
Landing
Landing is the last part of a flight, where a flying animal or aircraft returns to the ground. A similar process is correctly called alighting when returning to water. Hitting the ground too hard is prevented by wings (including rotor wings), a parachute or rockets or a vertically directed jet engine; in the case of a balloon the buoyancy is slightly decreased for a soft landing. Aircraft usually land at an airport on a runway or helicopter landing pad. For aircraft or birds, landing is generally accomplished by trading airspeed for lift. The first phase is the flare, where the rate of descent will be reduced by transitioning to a stall attitude. After slowing down, the plane changes pitch into the landing attitude shortly before touching down. In a perfect touchdown, assuming there is no crosswind, contact with the ground is made just as the forward speed is reduced to the point where there is no longer sufficient lift to remain aloft. If there is a crosswind, techniques such as a crab landing or a slip landing are used to land the plane safely. During landing, the ground effect becomes significant for aircraft. This tends to make the aircraft "keep flying" when it ordinarly would not (at higher altitudes) and therefore to extend the distance required to land. [[image:mute.swan.touchdown.arp.jpg|thumb|right|250px|A Mute Swan alighting. Note the ruffled feathers on top of the wings indicate that the swan is flying at the stalling speed. The extended and splayed feathers act as lift augmenters in the same way as an aircraft's slats and Flap (aircraft).]] Large jet transport aircraft land differently than described above. If the pilot waited for the aircraft to stall too much runway length would be used so the flare just reduces the rate of descent at touchdown and the aircraft is flown onto the runway. Usually lift dumpers are immediately deployed to dramatically reduce the lift and transfer the aircraft's weight to its wheels, where mechanical braking can take effect. To land on an aircraft carrier, an aircraft (moving at, perhaps, 150 mph (240 km/h)) is equipped with tailhooks to engage one of up to four arresting cables stretched across the deck, stopping the aircraft within 320 feet (100 m) after engaging one of the cables. To assist safe landings, the carrier will usually steam directly into wind at full speed, thus reducing aircraft's speed relative to the carrier deck, and eliminating any crosswind. Aviation
Landing
Wouldn't the buoyancy of a balloon be increased to cushion the landing ? User:Mike Stramba 16:15, 1 Nov 2003 (UTC) :I think what is meant is decreased compared with when the balloon stays in the air. However, the buoyancy of a balloon can perhaps be increased again at the last stage of landing, so that it hits the ground with a lower speed than with which is was going down. - User:Patrick 18:26, 1 Nov 2003 (UTC)
See other meanings of words starting from letter:
L
LA | LB | LC | LD | LE | LF | LG | LH | LI | LJ | LK | LM | LN | LO | LP | LR | LS | LT | LU | LW | LX | LY | LZ |Words begining with Landing:
Landing
Landing
Landings
Landings_at_Helles
Landings_at_Salerno
Landings_at_Suvla_Bay
Landings_on_other_planets
Landingville
Landingville,_PA
Landingville,_Pennsylvania
Landing_at_Anzac
Landing_at_Anzac_Cove
Landing_at_Anzac_Cove
Landing_at_Cape_Helles
Landing_at_Gaba_Tepe
Landing_at_Helles
Landing_at_Kip's_Bay
Landing_at_Suvla
Landing_at_Suvla_Bay
Landing_Craft
Landing_craft
Landing_craft
Landing_Craft_Air_Cushion
Landing_craft_tank
Landing_Craft_Utility
Landing_gear
Landing_Gear_Extenders
Landing_pad
Landing_Platform,_Helicopter
Landing_Platform_Dock
Landing_platform_dock
Landing_ship
Landing_Ship_Tank
Landing_Vehicle_Tracked
Landing_Zone
Landing_zone
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