Which of the following is NOT a benefit of using composite materials in aviation?

Using composite materials in aviation offers numerous benefits, and one of the significant advantages is their ability to provide exceptional strength at a reduced weight, which contributes to overall aircraft performance and efficiency. Composites are known for their high strength-to-weight ratio, making them ideal for enhancing structural integrity without adding unnecessary mass.

Moreover, durability is another key characteristic of composite materials, as they tend to resist corrosion and fatigue better than traditional materials like aluminum. This longevity can result in lower maintenance costs over time.

Design flexibility is also a major benefit, as composites can be molded into complex shapes that would be difficult or impossible with metals. This enables designers and engineers to create more aerodynamic and efficient surfaces, further optimizing aircraft performance.

In contrast, while increased weight does occur in some materials, the aim of utilizing composite materials is to reduce weight, which is why this option stands out as not being a benefit. Therefore, understanding how the properties of composites contribute positively to aviation helps clarify why increased weight is not aligned with the advantages of using these materials.