What happens to glide performance when weight increases?

When weight increases, the glide performance of an aircraft is affected in such a way that it results in increased glide speed and rate of descent. As an aircraft's weight rises, it requires a higher airspeed to maintain lift, which in turn elevates the speed at which the aircraft glides through the air. This is primarily due to the need to counteract the increase in gravitational force that comes with the added weight.

Additionally, since the aircraft now has a higher total weight, this will also lead to an increased rate of descent. The relationship between weight and aerodynamic forces means that as weight increases, the lift-to-drag ratio changes, ultimately leading to a steeper descent path while the aircraft is gliding. Pilots need to be aware of these factors when managing weight to ensure optimal glide performance under varying conditions.