Which fabric type is primarily chosen for its lightweight and strength properties in aircraft construction?

Fiberglass is primarily chosen for its lightweight and strength properties in aircraft construction because it combines excellent structural characteristics with a relatively low weight. This material is an advanced composite that offers superior tensile strength and rigidity, making it an ideal choice for various components of aircraft where weight saving is crucial for performance and efficiency.

Fiberglass can be molded into complex shapes, allowing for aerodynamic designs that improve fuel efficiency and overall performance. Additionally, its resistance to environmental factors such as corrosion and UV light further enhances its suitability for applications in aviation, where durability is essential.

While cotton, nylon, and polyester each have their uses in aircraft, such as in covering or interior applications, they do not provide the same level of structural benefits that fiberglass offers. Thus, when it comes to structural components where weight-to-strength ratio is a priority, fiberglass is the preferred material choice in aviation.