The Boeing wing spar transporter, used for transporting large wing components, is approximately 80 feet (24 meters) long. This specialized vehicle is designed to safely carry and deliver wing spars from the manufacturing facility to assembly plants. Its length allows it to accommodate the oversized dimensions of the components it transports.
The wing spar carries the load into the fuselage. The airfoil shape of the wing produces lift which is a force measured in pounds(lbs). This force acts over the surface area of the wing. The structure of the wing with its ribs and skin transfers this load to the wing spar, which transfers it to the fuselage. The spar is like the backbone of the wing.
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 the 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.
You can reduce wing flutter by decreasing the spar weight.
Spar
This is called a "strut" or "spar".
Alex Grzedzielski has written: 'Theory of multi-spar and multi-rib wing structures' 'Theory of multi-spar and multi-rib wing structures'
112ft wing span
112ft wing span
For which aircraft? Every aircraft is different.
No, the Boeing 707 did not have propellers, it had 4 turbo fan engines, two on each wing
A Boeing 747-400's wing span is approxamately 212 feet (65 m.).
The size of a Boeing Business Jet depends on the model. The BBJ1, for example, is 33.63 meters (110 ft 4 in) long, and has a wing span of 35.79 meters (117 ft 5 in).