What differentiates "autonomous" from "manual" control in glider flying?

The distinction between "autonomous" control and "manual" control in glider flying primarily revolves around the level of pilot involvement and reliance on technology. Autonomous control indicates that the glider is operated with minimal to no pilot intervention, often relying on pre-programmed systems or instruments to navigate, maintain altitude, or execute specific maneuvers. This can include automated flight systems that handle routine operations without active pilot input, freeing the pilot to focus on oversight or other tasks.

In contrast, manual control emphasizes the pilot's active role in flying the glider, where the pilot is fully responsible for making all decisions and physically controlling the aircraft using the yoke and pedals. This requires the pilot to have a comprehensive understanding of the flight characteristics and responsiveness of the glider, and it involves making real-time adjustments based on atmospheric conditions and performance parameters.

The other options do not accurately capture the fundamental differences. For example, claiming that autonomous control requires pilot intervention is misleading, as true autonomy aims to minimize the need for pilot actions. Similarly, stating that manual control uses technological aids does not accurately reflect the primary attributes of manual flight, which relies more on the pilot's direct inputs. Furthermore, limiting manual control to just takeoff and landing is incorrect, as manual