What is a good wing aspect ratio for a glider?

A good wing aspect ratio for a glider typically ranges from 15 to 25. Higher aspect ratiOS, such as those above 20, are advantageous for maximizing lift-to-drag ratiOS, allowing for better glide performance and efficiency in soaring. However, there is a trade-off, as higher aspect ratiOS can lead to reduced maneuverability and structural challenges. Ultimately, the optimal aspect ratio depends on the specific design and intended use of the glider.