What does "straighten the wheel" and "the plane right itself" mean?
This is from the book, Hatchet, and a pilot is teaching a guy how to fly a plane.
"It's not as complicated as it looks. Good plane like this almost flies itself. ... Now turn the wheel a little to the right and push on the right rudder pedal a small amount." Brian turned the wheel slightly and the plane immediately banked to the right, and when he pressed on the right rudder pedal the nose slid across the horizon to the right. ***He left off on the pressure and straightened the wheel and the plane righted itself.***
"Now you can turn. Bring her back to the left a little." Brian turned the wheel left, pushed on the left pedal, and the plane came back around. "It's easy." He smiled.
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I thought the part marked in stars meant the plane was coming back to where it was, before the boy turned to the right, since the plane "righted itself".
But then the passage right after it describes the exact same process of what I thought the first passage was doing, "the plane came back around." (Sounds to me like the plane turned back to the right twice, in the first passage and then again in the second passage.)
So I guess I'm misinterpreting the meaning of the sentence marked in stars.
What does "left off on the pressure", "straighten the wheel", "plane righted itself" mean here?
Thanks in advance.