Carbon-fiber (CF) composite sheets are widely used for high-performance UAV structures. In multicopter frames, pre-made CF plates form the main body plates and arms, providing exceptional stiffness at low weight. Unlike aluminum, CF does not corrode or deform with temperature
so CF parts maintain dimensional stability in harsh conditions. Gimbal frames on professional drones are often made from CF to minimise weight and vibration for stable imaging.In practice, light racing quads use 2–5 mm CF plates throughout, while long-range UAVs and VTOL drones use larger CF panels, tubes or spars in their wings/arms for maximal strength-to-weight.
| Property | Benefit in Drone Applications |
|---|---|
| High strength-to-weight ratio | Lightweight drones fly longer and faster without sacrificing durability. |
| Rigidity | Prevents frame flexing, ensuring stability during flight. |
| Vibration damping | Helps reduce noise in sensors (e.g., GPS, camera gimbal) and improves flight accuracy. |
| Corrosion resistance | No rusting or degradation in outdoor/weather-exposed conditions. |
| Aesthetic appeal | Sleek, professional look often preferred in commercial drones. |