Unmanned Aerial Vehicles by Country, Part 4 Codexery

Northrop Grumman MQ-4C Triton

High-altitude maritime surveillance UAV for US Navy and Australia.

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It is part of an unmanned aircraft system that includes a ground control station.[1] The MQ-4C Triton, a high-altitude long endurance unmanned aerial vehicle, was built by Northrop Grumman for maritime surveillance missions flown by the U.S. Navy and the Royal Australian Air Force.[1] Derived from the RQ-4 Global Hawk, the Triton features a strengthened airframe and wing, along with de-icing and lightning protection systems that enable it to fly down through cloud layers.[2]

How it changed

The Triton was developed under the Broad Area Maritime Surveillance program to provide real-time intelligence, surveillance, and reconnaissance over vast ocean regions.[1] Northrop Grumman received the BAMS contract worth $1.16 billion on 22 April 2008 after a competition that included Boeing with an unmanned Gulfstream G550.[3][4] The aircraft was designated MQ-4C in September 2010 and named Triton at its unveiling on 14 June 2012.[3][5] The first flight occurred on 22 May 2013 from Palmdale, California.[5][6]

A Pentagon audit found the Navy declared IOC before conducting Initial Operational Test and Evaluation, citing benefits despite deficiencies.[7] The U.S. Navy originally planned to buy 68 MQ-4Cs but reduced the procurement to 27 aircraft by May 2023.[8][9][10] Australia became the first foreign customer, announcing its intention to buy the Triton on 13 March 2014.[11]

What the maker and period sources say

A 2014 article from Foxtrotalpha.Jalopnik.com states the Triton can fly over 24 hours at speeds up to 330 knots and survey 2,700,000 square miles of sea in a single sortie.[12] The same source notes the AN/ZPY-3 MFAS radar is a 360-degree field-of-regard active electronically scanned array radar operating in X-band.[12] It describes the aircraft's ability to act as a network relay and data fusion center, fusing information from ships, planes, and land sensors into a common picture.[12] Defence Security Asia reported in April 2026 that the U.S. Navy confirmed the loss of a $240 million MQ-4C Triton over the Persian Gulf, classified as a Class A mishap.[13]

The same source states the aircraft transmitted transponder code 7400 for communications failure, then code 7700 for general emergency before descending from approximately 52,000 feet.[13] Unlike the Global Hawk, the Triton can descend to a lower altitude; its lower fuselage was reinforced to endure hail, bird, and lightning strikes.[12]

References

  1. Wikipedia, "Northrop Grumman MQ-4C Triton" (CC BY-SA 4.0), which cites: Freedberg Jr., "Triton, Poseidon, & UCLASS: The Navy's ISR Balancing Act", breakingdefense.com, 1 October 2014; "P-8A Multi-mission Maritime Aircraft (MMA)", U.S. Navy Fact File; "MQ-4C Triton - NAVAIR - U.S. Navy Naval Air Systems Command - Navy and Marine Corps Aviation Research, Development, Acquisition, Test and Evaluation", Navair.navy.mil (original not read by us) en.wikipedia.org
  2. Wikipedia, "Northrop Grumman MQ-4C Triton" (CC BY-SA 4.0), which cites: "MQ-4C Triton: Persistent Maritime Intelligence, Surveillance and Reconnaissance" (original not read by us) en.wikipedia.org
  3. Wikipedia, "Northrop Grumman MQ-4C Triton" (CC BY-SA 4.0), which cites: "Acquisition Category (ACAT)-Defense Acquisition Glossary[DAP]"; Office of the Assistant Secretary of Defense (Public Affairs), "Navy Awards Northrop Grumman Unmanned Aircraft System Contract", U.S. Department of Defense, 22 April 2008; Stephen Trimble, "Lockheed protests USN BAMS award", Flightglobal, 5 May 2008; NAV Air News Release - BAMS UAS program resumes; "BAMS given MQ-4C designation", Naval Air Systems Command (original not read by us) en.wikipedia.org
  4. Wikipedia, "Northrop Grumman MQ-4C Triton" (CC BY-SA 4.0), which cites: "Defence Systems", defence-data.com, 1 October 2007 (original not read by us) en.wikipedia.org
  5. Wikipedia, "Northrop Grumman MQ-4C Triton" (CC BY-SA 4.0), which cites: Aviation Week & Space Technology 18 June 2012; "MQ-4C Triton - NAVAIR - U.S. Navy Naval Air Systems Command - Navy and Marine Corps Aviation Research, Development, Acquisition, Test and Evaluation", Navair.navy.mil (original not read by us) en.wikipedia.org
  6. Wikipedia, "Northrop Grumman MQ-4C Triton" (CC BY-SA 4.0), which cites: Navy's High-Flying Spy Drone Completes Its First Flight - Wired.com, 22 May 2013; Northrop Grumman MQ-4C Triton makes first flight - Flightglobal.com, 22 May 2013 (original not read by us) en.wikipedia.org
  7. Wikipedia, "Northrop Grumman MQ-4C Triton" (CC BY-SA 4.0), which cites: "Audit of the Navy’s Management of the MQ-4C Triton Unmanned Aircraft Progra", Department of Defense, September 4, 2025; Abott, "MQ-4C Approved For Initial Use Despite Deficiencies That Could Prevent Mission Success, Says Pentagon Auditor", Aviation Tech Today, September 18, 2025 (original not read by us) en.wikipedia.org
  8. Wikipedia, "Northrop Grumman MQ-4C Triton" (CC BY-SA 4.0), which cites: Aviation Week and Space Technology 18 June 2012 (original not read by us) en.wikipedia.org
  9. Wikipedia, "Northrop Grumman MQ-4C Triton" (CC BY-SA 4.0), which cites: Navy says may trim Northrop drone order due to better reliability - Reuters.com, 23 September 2014; Pentagon inspector finds no fault with US Navy's 70-Triton buy - Flightglobal.com, 17 September 2015 (original not read by us) en.wikipedia.org
  10. Wikipedia, "Northrop Grumman MQ-4C Triton" (CC BY-SA 4.0), which cites: "Navy Scaling Back Planned Triton Deployable Sites from Five to Three", Seapower Magazine, 24 May 2023 (original not read by us) en.wikipedia.org
  11. Wikipedia, "Northrop Grumman MQ-4C Triton" (CC BY-SA 4.0), which cites: "Triton unmanned aerial vehicles to boost maritime surveillance capabilities", Prime Minister of Australia, 13 March 2014; McLaughlin, "Australia to buy MQ-4C Triton", Flight International, 13 March 2014; McLaughlin, "Australia to buy MQ-4C Triton", Flight International, 13 March 2014; McLaughlin, "Australia to buy MQ-4C Triton", Flight International, 13 March 2014; McLaughlin, "Australia to buy MQ-4C Triton", Flight International, 13 March 2014 (original not read by us) en.wikipedia.org
  12. The Navy Has The Ultimate MH370 Search Tool, It's Just Not Operational - Foxtrotalpha.Jalopnik.com, 18 March 2014. facts only, no text reused. foxtrotalpha.jalopnik.com
  13. "US Navy Confirms Loss of US$240 Million MQ-4C Triton Near Strait of Hormuz", www.defencesecurityasia.com, 15 April 2026. facts only, no text reused. defencesecurityasia.com

Each numbered sentence above was checked against the source it cites before publication. Sentences citing Wikipedia adapt text from the English Wikipedia article Northrop Grumman MQ-4C Triton (contributors), used under CC BY-SA 4.0; this entry is available under the same licence. Other sources were used for facts only; no text or images are copied from them.

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Sources

Compiled from Wikipedia and the sources listed below. Text from Wikipedia is available under CC BY-SA 4.0; this entry is adapted from it.

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