The US Military's 11 Most Expensive Drones – 24/7 Wall St.

6. MQ-1C Gray Eagle
> Est. unit cost: $92.9 million
> Military branch(s): Army
> Function: Long-range battlefield support and aerial fire
> Primary contractor(s): General Atomics
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5. MQ-25 Stingray
> Est. unit cost: $121.0 million
> Military branch(s): Navy
> Function: Boeing
> Primary contractor(s): Aerial refueling and intelligence, surveillance, and reconnaissance

GRUMMAN RQ-4 GLOBAL HAWK UAV D… (CC BY 2.0) by simon butler

4. RQ-4 Global Hawk
> Est. unit cost: $141.1 million
> Military branch(s): Air Force
> Function: Northrop Grumman, Raytheon, L3 Comm
> Primary contractor(s): High-altitude, long-endurance, intelligence, surveillance, and reconnaissance

3. MQ-4C Triton
> Est. unit cost: $162.6 million
> Military branch(s): Navy
> Function: Maritime intelligence, surveillance, and reconnaissance
> Primary contractor(s): Northrop Grumman
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2. MQ-25 Stingray
> Est. unit cost: $211.1 million
> Military branch(s): Navy
> Function: Aerial refueling and intelligence, surveillance, and reconnaissance
> Primary contractor(s): Boeing