A lot of math and physics goes into getting a plan to fly. To get it in the air, you must make sure that your lift while taking off will be greater than the gravity pushing it down. You must also make sure the thrust will be strong enough to resist the drag. The elevators are also a big part and need to be upward to take off.
Once it is in the air, you must know how to work the ailerons. If you don't know how to do this you will run into a major problem because you won't be able to tip the airplane, helping it turn. The rudders are help keep your plane under control. The direction of the end of the rudder is the direction the nose of the plane will go (i.e. left rudder causes nose to head to the left).
When you are ready to land the airliner or slow it down you need to know how the elevators operate. You need to point the elevators downwards. This will cause the plane to be pointed down and you will be headed towards earth. Obviously, you cannot land and continue at the speed you were traveling at once airborne. This is where the flaps come in handy. They add surface area and resistance to the drag, slowing you down.
As you can see, flying a plane is not as easy as a lot of people think it is. These are not the only things you need to know to fly an airplane but they are some of the basics. Physics and planning go into because without extensive training, you could get into a serious accident. For more detailed information click here.
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