I have noticed some planes when they land upon touching the ground the plane continues going at a very fast speed while other planes touch down very gently and immediatly stop...What determines this?|||An airplane has a speed at which it 'stalls', meaning it stops flying and just falls out of the air. When you learn to fly you become intimately acquainted with this phenomenon. You back off on the throttle while pulling back on the yoke or stick, trying to keep the airplane in the air. At a certain point the airplane just stops flying and plummets! You let it fall a fraction of a second, then put the nose down to gain airspeed, put the throttle back in, and you're flying again. You do this again and again until you can 'feel' the stall coming on.
The reason for learning this this is that this is how you land. You don't fly the airplane onto the ground, you get close to the stall speed and fly it just above the runway. As the plane goes slower and slower you pull up the nose (this is called a 'flare'), and at some point the plane just stalls and falls onto the runway. Then you cut the power completely and use the brakes to stop. Every airplane has a stall speed, the speed at which it stops flying, and you have to know that before you can land. (Of course there's no time to look it up, you have to memorize it first. 8^) ).
In a small plane like you learn to fly in, you usually have lots of room on the runway. It doesn't take a lot of space to land, so you are usually stopped before you've used 1/3 of the runway. But the bigger planes fly a lot faster, so they have a higher stall speed, so they use all kinds of tricks. They have brakes on the wheels, and some jet planes can reverse the engines so they push the plane backwards. In some cases, even with all these tricks, the airplane has just barely enough runway to land, so they have to brake pretty violently. In other cases they have plenty of room so they can stop more gently and gradually.|||The vertical speed largely determines the "softness" of the landing. If an aircraft is descending rapidly at touchdown, the landing will be rough and the aircraft may bounce. A high descent rate on landing could be the result of not flaring enough or stalling the aircraft above the runway. A bounce could also result from touching down at too high of speed. If the descent rate at touchdown has been reduced to a lower rate, the touchdown will be smooth.
The length of the available runway determines if the aircraft slows down rapidly or slowly. If there is a lot of runway, the pilot will be easy on the brakes to prevent wear. On short runways, the pilot's get the airplane stopped ASAP. For instance, at Midway airport, don't expect a soft landing (soft landing often use up more runway), and expect to be put forward in your seat. The available runway is not excessive for a Southwest or Frontier aircraft, so they do everything they can to get the aircraft stopped quickly.|||my dad grandpa and uncle are pilots and im starting to be and im 14
so if you land and its bumpy and the plane bounces a little then its kind of a rough landing
but if its smooth and you dont really feel it then they landed softly
what determines this is kind of the skill of the pilot i mean i good pilot itsnt going to land a plane soft and easy every single time...there are some rough patches....
and the plane continuses to go fast sometimes because it just got done going 120 mph in the air then you land it so you have to use the break
dont worry about anything thats just how it is....i fly in our airplane all the time sometimes soft landing and some rough.
hope this helped :)|||Additionally, an unusually low air density, such as at an airport at high elevation or a very hot location (such as a desert) can noticeably increase landing speed.|||The skill of the pilot or automatic landing controls.
Automatic is usually best.|||The pilot and his/her experince.|||Pilot
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