Fast Channel
Wing is one of the most important parts of the airplane. The main purpose is to generate lifting power and set ammunition storehouse and fuel tank inside the wing. The wing can collect the landing gear during flying. Tail is the control and steady device that installed in the back of the airplane.
Wing and tail construction:
Key points of the spar inspection:
Spar bending
Depth, width, length and other basic dimension of the spar inspection
Parallelism and other position inspection