Widespread Pain Caused by Fibromyalgia Fibromyalgia is a syndrome that is characterized by a number of different symptoms. However, one of the most dominant fibromyalgia symptoms is definitely pain.
Engines, Tail, and Wings. The engines, tail, and wings are the parts of a plane that make it actually fly--they're the functional parts. The engines are the cylindrical parts usually found under (or sometimes just above) the wings, and they drive the plane forward.
The wing spar. The spar is the main structure of the wing that supports the load of the entire airplane. All the loads go through the wing into the wing spar and down to theâ¦ center of it, which is called the wing box. (You could call this the most important part,)  An airplane may fly without its engines. It might be able to fly without its flight controls. But it can not fly if the wing spar breaks.