UAS groups of the United States military
The U.S. Department of Defense (DoD) classifies unmanned aerial systems (UAS) into "Groups" according to their size and capability, a joint system that replaced the service branches' separate categorization schemes in 2011.
The "Group" system has five categories, whose capabilities increase with the number.
| Group | Maximum weight (lb) (MGTOW)  | Nominal operating altitude (ft)  | Speed (kn) | Examples | 
|---|---|---|---|---|
| 1 | 0–20 | < 1,200 AGL | 100 | RQ-11 Raven, WASP, Puma | 
| 2 | 21–55 | < 3,500 AGL | < 250 | ScanEagle, Flexrotor, SIC5, PDW C100 | 
| 3 | < 1,320 | < FL 180 | Shield AI V-BAT, RQ-7B Shadow, RQ-21 Blackjack, Navmar RQ-23 Tigershark, Arcturus-UAV Jump 20, Arcturus T-20, SIC25, Resolute ISR Resolute Eagle, Vanilla Unmanned | |
| 4 | > 1,320 | Any | MQ-8B Fire Scout, MQ-1A/B Predator, MQ-1C Gray Eagle | |
| 5 | > FL 180 | MQ-9 Reaper, RQ-4 Global Hawk, MQ-4C Triton, Skydweller Aero (former Solar Impulse airframe) |