Guide · 2 min read
Drone classes
Unmanned systems range from palm-sized helicopters to aircraft with an airliner-sized wingspan. Classification schemes group them by weight, altitude, endurance and role.
NATO classes I to III
NATO groups unmanned aircraft broadly by maximum take-off weight. Class I covers systems under 150 kg, from micro and mini drones such as the Black Hornet 3 and RQ-11 Raven to small tactical systems like the ScanEagle. Class II spans 150 to 600 kg for tactical systems. Class III is above 600 kg and includes the large strategic and combat drones.
MALE and HALE
Within the largest class, endurance and altitude define two common labels. MALE (medium altitude, long endurance) systems such as the MQ-9 Reaper and Bayraktar TB2 fly at medium altitude for many hours. HALE (high altitude, long endurance) systems like the RQ-4 Global Hawk operate far higher, mainly for wide-area surveillance.
UCAV
An unmanned combat aerial vehicle (UCAV) is designed to carry and deliver weapons. Some MALE drones are armed variants of reconnaissance designs, while others like the Bayraktar Akıncı are conceived as combat platforms from the start.
Loitering munitions
A loitering munition combines a small unmanned aircraft and a warhead: it can circle an area before being directed onto a target, and is not intended to return. Catalog examples include the Switchblade 300/600, IAI Harop and Shahed-136.
USV and UUV
Unmanned systems also operate at sea. An unmanned surface vehicle (USV) travels on the water, while an unmanned underwater vehicle (UUV) operates submerged. The catalog does not yet include individual USV or UUV entries.
FAQ
- What is the difference between MALE and HALE drones?
- MALE drones fly at medium altitude with long endurance; HALE drones fly at high altitude, usually for wide-area surveillance.
- Is a loitering munition a drone?
- It is an unmanned aircraft carrying a warhead, designed to loiter before striking and not to return.
- How does NATO classify drones?
- Broadly by maximum take-off weight: Class I under 150 kg, Class II 150 to 600 kg and Class III above 600 kg.
Educational and historical overview based on public sources. See data sources and methodology.