J-20 5th Gen Fighter Thread VI


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Tirdent

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xyqq

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It is probably done to create torque so that the plane could turn while taxiing.
However, the plane just completed a left turn, and right engine was supposed to give more thrust to create a torque. Without the use of afterburners, the left engine would generate more thrust than the right one that had a fully opened nozzle.
My guess is that before the turning, the pilot applied brakes. During the turning, he increased the thrust to catch up the speed and both engines' nozzles closed in. After the turning, the thrust needs to be reduced back to almost minimum. it seems that J-20 is programmed to open up the right nozzle first then the left (to avoid sudden change in the thrust, which is more important in the air for control stability). Of course, we need to watch the video to confirm the theory.
 
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