Which aspect of sUAS operation is directly affected by the center of gravity?

The center of gravity (CG) is a crucial factor in the design and performance of small Unmanned Aircraft Systems (sUAS). When the CG is properly positioned, it contributes positively to the aircraft’s stability. A well-balanced sUAS can maintain steady flight and respond predictably to control inputs. If the CG is too far forward or backward, it can lead to instability during flight, causing the aircraft to pitch up or down excessively, which can compromise control and safety.

Stability ensures that the sUAS can maintain its intended path and respond appropriately to external forces like wind. Proper CG placement allows the aircraft to return to a straight and level flight with minimal control input, which is essential for safe operation, especially in varying flight conditions.

While speed, altitude, and fuel efficiency are important operational parameters, they are more indirectly influenced by the CG compared to stability. For instance, incorrect CG could impact speed and fuel efficiency due to the increased drag created by poor aerodynamic performance. However, the immediate and most significant effect of the center of gravity is on the stability of the aircraft during flight operations.