Northrop Grumman · UAV · United States · Digital Age (2010–present)
Open in interactive gallery →See aircraft like this on the live radar →The Northrop Grumman RQ-180 is an American single-engine, low-observable high-altitude long-endurance (HALE) unmanned aerial vehicle designed by Northrop Grumman and flown by the U.S. Air Force in classified service. It serves as the USAF's principal stealth long-range ISR UAV — successor to the smaller and partially-acknowledged RQ-170 Sentinel and a peer to the unclassified RQ-4 Global Hawk in mission profile, but built around stealth shaping for flights in denied airspace. The U.S. Air Force has never formally acknowledged the type; airframe count, design specifications, and missions remain undisclosed. Service entry is said to have been 2014, with a current fleet of 7-12 airframes.
Defence-industry journalism has tracked the programme since 2013-2014, with major coverage by Aviation Week, FlightGlobal, The War Zone, and other defence publications. The design is described as a flying-wing planform in the family of the much larger B-2 Spirit and the smaller RQ-170 Sentinel — a medium-size stealth flying wing tuned for long-endurance high-altitude penetration. Wingspan is roughly 130 ft, sitting between the RQ-170's 66 ft and the B-2's 172 ft. Gross weight is given as 22,000-30,000 lb. Propulsion is a single jet engine (specific variant undisclosed, said to be derived from GE or Pratt & Whitney commercial/military engine families). Flight altitude is around 60,000+ ft, comparable to the RQ-4 Global Hawk and U-2 Dragon Lady.
Mission tasking is said to be high-priority long-range ISR and SIGINT collection in denied airspace where stealth is essential. Missions include continuous surveillance of Chinese, Russian, Iranian, and North Korean military and nuclear facilities, intelligence collection during politically sensitive operations, and other tasks held under wraps. The operating unit is the 24th Operations Squadron / Det 5 at Tonopah Test Range Airport (TTR), Nevada — the same 'Black Range' site that hosts other black-programme U.S. Air Force aircraft. Some journalism also places the type at Plant 42 (Palmdale, California) and at forward operating bases overseas.
The procurement effort is described as much larger than the RQ-170 Sentinel programme. Sources point to 7-12 airframes delivered through 2025, with further production possible into the late 2020s. Per-airframe acquisition cost is given as $300-500M USD — well above the unclassified RQ-4 Global Hawk's $130M and reflecting the cost of stealth integration. The USAF has never publicly acknowledged the programme. Follow-on stealth-UAV efforts (a possible 'B-21 ISR' or other USAF programmes) may build on RQ-180 lessons. No public photograph of the aircraft exists; all reporting rests on insider sources, unconfirmed leaked imagery, and indirect-evidence analysis by defence journalists.
The Northrop Grumman RQ-180 is a secret American drone. It is flown by the Air Force but never officially announced. It started flying around 2014 and stays very secret to this day.
This drone is shaped like a flying wing with no tail. That flat, smooth shape helps it avoid radar. It flies very high and can stay up in the sky for a long time.
The RQ-180 has a wingspan of about 130 feet. That is longer than many city buses parked end to end. It is bigger than the older RQ-170 drone but smaller than the giant B-2 bomber.
Only around 7 to 12 of these drones have been made. Each one costs hundreds of millions of dollars. Defense reporters first started writing about it in 2013 and 2014.
The RQ-180 is built to fly into dangerous areas and gather information without being seen. It replaced an older spy drone called the RQ-170 Sentinel. It is one of the most advanced drones in the world today.
The Air Force uses it to fly into dangerous places without being seen. Keeping it secret helps protect how it works and what it can do. The government has never officially confirmed it is real.
The smooth, flat shape scatters radar signals away instead of bouncing them back. This makes the drone very hard to detect. It is the same idea used on the B-2 bomber.
Its wingspan is about 130 feet, which is larger than the older RQ-170 drone at 66 feet. It is smaller than the B-2 bomber, which stretches to 172 feet wide. Think of it as a medium-sized stealth flying wing.
A company called Northrop Grumman designed and built it. The American Air Force flies and operates the drone. Northrop Grumman also built the famous B-2 stealth bomber.
Not by the U.S. Air Force. Defence-industry journalism has tracked the programme since 2013-2014, but the USAF has consistently refused to acknowledge it. Reporting rests on insider sources, leaked information, and indirect-evidence analysis. Major outlets covering the type include Aviation Week, FlightGlobal, The War Zone, and Air Force Magazine. Even the 'RQ-180' designation itself is reported but unconfirmed; alternative designations may be in classified use.
The RQ-180 is larger and more capable. RQ-170 Sentinel: roughly 66-ft wingspan, single-engine stealth ISR UAV, ~25-30 airframes in USAF service, partially acknowledged. RQ-180: reportedly ~130-ft wingspan, single-engine stealth HALE ISR UAV, ~7-12 airframes in USAF service, fully classified. The RQ-180 represents a generational step — a larger airframe with extended range, improved sensors, and refined stealth shaping. It essentially takes over the RQ-170's role in the USAF stealth-ISR mission, though both remain in service.
Different stealth versus non-stealth design priorities. The RQ-4 Global Hawk is a non-stealth high-altitude long-endurance ISR UAV (~32-hour endurance, 8,700+ nm range, $130-220M per airframe, 30+ airframes across U.S., NATO, Korean, and Japanese forces). The RQ-180 is a stealth HALE ISR UAV (~24-hour endurance estimated, ~6,000+ nm range estimated, ~$300-500M per airframe, ~7-12 airframes). The RQ-4 handles routine wide-area ISR over uncontested or partially contested airspace; the RQ-180 is reserved for high-value-target collection in denied airspace where stealth is essential. The two are complementary rather than competing.
Main base: Tonopah Test Range Airport (TTR), Nevada — the same 'Black Range' site that has hosted F-117 retirement and classified-aircraft test flights. Additional activity includes Plant 42 (Palmdale, California — also the reported build location), Andersen Air Force Base (Guam, as a forward base for Indo-Pacific missions), and other forward operating bases overseas. Specific basing and deployment patterns remain undisclosed, though Tonopah flights fit the long-standing USAF practice of running black-programme aircraft from that area.
Around $300-500M USD per airframe, well above the unclassified RQ-4 Global Hawk at $130-220M. The high per-airframe cost reflects stealth integration (radar-absorbent materials, edge-aligned panels, internal weapons and sensor bays), a classified sensor and SIGINT package, low-volume production (7-12 airframes versus the RQ-4's ~45), and black-programme overhead. Total programme cost has never been publicly disclosed; estimated total value is in the range of $4-6 billion USD across the 7-12 airframes plus support infrastructure.
Future USAF stealth UAV programmes are not publicly disclosed. Classified efforts that may eventually replace or augment the RQ-180 include potential ISR variants of the B-21 Raider stealth bomber, future Northrop Grumman undisclosed UAV programmes, and other unmanned long-range ISR concepts. The USAF's Next-Generation Penetrating Strike (NGPS) programme is said to include ISR variants. Timing for any RQ-180 successor remains uncertain; the existing fleet is likely to serve through the 2030s.