The development of energy-efficient UAV systems is an important field of study in the field of aviation. It is extremely important to use the gliding function in vehicle designs in the development of energy efficient aircraft and drone systems. Gliding can be defined as the use of rising air mass by birds and airplanes to gain altitude. In dynamic gliding, the source of lift is the wind slope, not the rising air. However, the buoyancy force resulting from the upward movement of heated air also affects static floating. Gliding, especially inspired by nature and integrated into unmanned aerial vehicles, has an important place in the design of energy efficient systems. Birds such as the albatross can fly hundreds of kilometers without flapping their wings. In this study, the reflections of the gliding function obtained by the biomimicry method on unmanned aerial vehicles will be discussed. At the same time, as an example of the use of the soaring function in unmanned aerial vehicles, the process steps that can be used in the integration of the soaring function of Ardupilot open source flight control software and APM 2.8 flight control card into fixed wing UAV systems are briefly explained.