Have you ever made a paper plane? Well, a paper plane is an example of a glider. A glider does not depend on engines; it depends on aerodynamics and the physics of flying, like a bird hovering in the air without moving its wings. The gliding drone is little bit more complicated than the usual copters. The glider has to follow the winds and the weather. The direction of the wind is but one of many variables. The following image shows a glider (DG Flugzeugbau DG-800).
Glider drones are also known as fixed wing drones:

There are three main surfaces of a glider. They are:
- Wing
- Stabilizer
- Vertical fin
The wing provides the lifting of the glider. For the wing, the glider glides and stables itself by means of the stabilizer. In some gliders, stabilizers are not available. There are two things related to the wing that should be known; wing area and wing loading.
The...