What is the reported usage of composite materials for the AV-8B?

What is the reported usage of composite materials for the AV-8B?

• A. 50% of surface area
• B. 75% of surface area; 26% of structural weight
• C. 25% of surface area
• D. 90% of surface area

Answer: (B)

The idea being tested is how composites were used on the AV-8B in terms of skin coverage versus actual weight contribution. The AV-8B reportedly used composites to cover a large portion of the airframe surface—about three-quarters of the wing and body skin—while composites contributed a smaller share to the structural weight, roughly a quarter. This reflects a common reality: composites are excellent for lightweight, complex-shaped skins and panels, so they can dominate surface area even when they don’t carry most of the structural loads. The thick, high-load components like certain engine parts, reinforcements, and landing gear often stay metal or use other materials, so their weight contribution remains relatively high even if their surface area is smaller. Therefore, 75% of surface area with about 26% of structural weight best matches this balance. The other figures would imply unrealistically high or low surface-area use or weight share that doesn’t align with how composites are typically applied on airframes.

The idea being tested is how composites were used on the AV-8B in terms of skin coverage versus actual weight contribution. The AV-8B reportedly used composites to cover a large portion of the airframe surface—about three-quarters of the wing and body skin—while composites contributed a smaller share to the structural weight, roughly a quarter. This reflects a common reality: composites are excellent for lightweight, complex-shaped skins and panels, so they can dominate surface area even when they don’t carry most of the structural loads. The thick, high-load components like certain engine parts, reinforcements, and landing gear often stay metal or use other materials, so their weight contribution remains relatively high even if their surface area is smaller. Therefore, 75% of surface area with about 26% of structural weight best matches this balance. The other figures would imply unrealistically high or low surface-area use or weight share that doesn’t align with how composites are typically applied on airframes.