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RQ-170 Sentinel vs X-47B

Lockheed Martin RQ-170 Sentinel military drones side profile drawing
🇺🇸 RQ-170 SentinelFull specs
Northrop Grumman X-47B military drones side profile drawing
🇺🇸 X-47BFull specs
Specifications
RQ-170 Sentinel X-47B
Origin country 🇺🇸 United States 🇺🇸 United States
Category Military Drones Military Drones
Manufacturer Lockheed Martin Northrop Grumman
First flight 1 January 2005 4 February 2011
Year introduced 2007 --
Number produced N/A 2 units
Average unit price $6 million $406.5 million
Wing area -- m² 88.6 m²
Wingspan 20.0 m 18.9 m
Height -- m 3.1 m
Length 4.8 m 11.6 m
Maximum speed -- km/h 1102 km/h
Operational range -- km 3,900 km
Service ceiling 15,240 m 12,800 m
Max. takeoff weight -- kg 20,185 kg
Empty weight -- kg 13,080 kg
Performance Radar Chart
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Frequently Asked Questions

Which can fly higher, the RQ-170 Sentinel or X-47B?
The RQ-170 Sentinel has a higher service ceiling at 15,240 meters (50,000 ft) compared to the X-47B's 12,800 meters (41,994 ft).
Which is larger, the RQ-170 Sentinel or X-47B?
The X-47B is longer at 11.6 meters compared to the RQ-170 Sentinel's 4.8 meters.
Which is more expensive, the RQ-170 Sentinel or X-47B?
The X-47B is more expensive at approximately $406 million per unit compared to the RQ-170 Sentinel at $6.0 million.