When a compact engine design is required, a manufacturer may incorporate a(n) _________ piston design.

A slipper skirt piston design is particularly suited for compact engine designs due to its reduced size and weight compared to traditional piston designs. This type of piston features a simplified form with minimal material on the skirt, allowing for a lighter overall engine assembly. By minimizing the skirt area while maintaining structural integrity, the slipper skirt not only aids in reducing the dimensions of the piston but also enhances the engine's ability to operate efficiently in confined spaces.

Additionally, the slipper skirt design facilitates lower friction during operation, which can contribute to improved fuel efficiency and reduced wear over time. These factors make it an excellent choice when engine size and weight are critical considerations.

While other piston designs like articulating or cam ground have their applications, they do not specifically offer the same advantages in terms of compactness and reduced weight. The trunk design, though effective in certain high-performance contexts, does not prioritize the compactness needed for certain engine applications, making the slipper skirt a more fitting choice in this scenario.