Northrop Grumman RQ-4 Global Hawk
- in service
- United States
- high-altitude, remotely-piloted, surveillance aircraft (UAV - unmanned aerial vehicle)
- RQ-4A - Initial production version for USAF, 16 built.
- RQ-4B - Improved version for USAF with increased payload, wingspan & length. And the range is reduced to 16,100 km.
- MQ-4C Triton (RQ-4N) - for United States Navy. 4 ordered, 68 total planned.
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