The 509th and the 131st joined forces according to what is known as a "classic associate wing" structure.
When he reached the foot of the stairs she was examining the wing structure without touching it.
Next he makes some observations on the wing structure of modern nestling birds.
Investigation showed that the wing structure was not strong enough to resist compressibility effects.
To restore the C-5's full capability, the wing structure was redesigned.
The primitive insect groups use muscles that act directly on the wing structure.
The wing structure was mostly metal, with some wooden components, then fabric covered.
A novel design feature, however, was the wing structure.
The ornithopter's wing structure is made up of three pieces.
You can't build an airplane and not know basic wing structure.