Question

The primary load-carrying structural component of an aircraft wing is:

• A. Rib
• B. Stringer
• C. Spar
• D. Skin
• E. Bulkhead

Hint:

Think of the Spar as the "spine" of the wing. Just as your spine supports your weight and posture, the Spar supports the lift and weight of the aircraft.

Answer 1

The Correct Option is C

The primary load-carrying structural component of an aircraft wing is the Spar. Here's a detailed explanation:

1. Understanding the Role of Spar in an Aircraft Wing:

   The spar is the main structural component of a wing. It runs longitudinally from the root to the tip of the wing. Spars are designed to carry bending loads that occur during flights, such as those from both the lift force generated by the wing and the weight of the aircraft. Thus, it is the primary component that resists wing bending and provides structural integrity.

2. Examining Other Components:
   • Rib: Ribs are components that provide shape and structure to the wing. They run from the leading edge to the trailing edge and support the skin of the wing, but they do not primarily carry the load.
   • Stringer: Stringers are smaller support structures that run longitudinally alongside the spar. They provide additional support to the skin but do not serve as the primary load-bearing structures.
   • Skin: The skin covers the frame made by the spars, ribs, and stringers. It helps with aerodynamic shape and transfers loads between the other components, but it is not the primary load carrier.
   • Bulkhead: Bulkheads are structural components that provide transverse support and compartmentalization in the fuselage, not in the wings.
3. Conclusion:

   Given the descriptions above, the Spar is correctly identified as the primary load-carrying component of an aircraft wing, as it bears the major bending loads during flight. Other components support and stabilize the wing structure, but they do not carry the primary load like the spar does.