PREVIEW

... sts directly on the ground, that is, to press jacks one by one on various parts of the fuselage and wings , press for thousands of hours, and after reaching the service life, increase the pressure until the plane is completely crushed to see what the maximum pressure it can withstand.

  After such an experiment, you can have a thorough grasp of the fuselage.

  However, the research and development of the drone is very intense. Anyway, there is no one, and it will not be life-threat ...

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