What is the primary design characteristic of straight wings?

The primary design characteristic of straight wings is that they are often rectangular, elliptical, or tapered. This type of wing design is characterized by a consistent cross-section along their length, which allows for stable and predictable flight characteristics. Straight wings provide decent lift at slower speeds and are commonly found on many general aviation aircraft as well as some commercial jets. The shapes, such as rectangular or tapered, help to manage factors like lift distribution and drag, enhancing the aircraft's overall performance during various phases of flight.

While options suggesting complexity or maximizing fuel efficiency may seem relevant, they do not primarily define the shape or characteristic of straight wings. Instead, the simplicity of the design often contributes to ease of manufacturing and maintenance. Aerobatic capabilities are typically associated with specialized wing designs rather than straight wings, which are more conservative in shape and geared toward stability rather than agility.