MQ-4C Triton is a new broad area maritime surveillance (BAMS) unmanned aircraft system (UAS) unveiled by Northrop Grumman for the US Navy.
The UAS will complement the navy’s Maritime Patrol and Reconnaissance Force family of systems, delivering SIGNET (signals intelligence), C4ISR and maritime strike capabilities.
The MQ-4C Triton programme is managed by the Persistent Maritime Unmanned Aircraft Systems Programme Office (PMA-262).
BAMS UAS programme details
The BAMS UAS was acquired under a US Department of Defence (DoD) Acquisition Category (ACAT) 1D programme and Northrop Grumman was awarded a $1.16bn contract for the MQ-4C BAMS programme in April 2008. The programme saw the completion of a preliminary design review in February 2010 and a critical design review in February 2011.
The first of the three fuselages of MQ-4C was completed in March 2011 and the ground station testing of multifunction active sensor (MFAS) radar was completed in November 2011.
The flight testing of MFAS on the Gulfstream II testbed aircraft began in February 2012. The first MQ-4C Triton was unveiled in June 2012, while the maiden flight for the UAS was conducted in May 2013.
The MQ-4C completed its ninth trial flight in January 2014 and operational assessment (OA) in February 2016. The US Navy intends to procure 68 MQ-4C Triton UAS to carry out surveillance missions, along with the manned P-8 Poseidon maritime patrol aircraft.
The Australian Government granted approval to acquire an MQ-4C aircraft in June 2018 for $1bn. The government’s decision to provide funding for an additional three of planned six MQ-4C Triton UAS and associated ground mission control stations was announced in June 2020.
Two MQ-4C Triton unmanned aircraft systems arrived at Andersen Air Force Base, Guam, in January 2020 for early operational capability (EOC) test by Unmanned Patrol Squadron (VUP) 19.
The deployment was made to provide military commanders in the Western Pacific greater maritime intelligence, reconnaissance and surveillance (ISR) data for critical decision-making in important regions.
MQ-4C Triton design features
The MQ-4C Triton is based on the RQ-4N, a maritime variant of the RQ-4B Global Hawk. The main aluminium fuselage is of semi-monocoque construction while the V-tail, engine nacelle and aft fuselage are made of composite materials.
The forward fuselage is strengthened for housing sensors and the radomes are provided with lightning protection, and hail and bird-strike resistance.
The UAS has a length of 14.5m, a height of 4.7m and a wingspan of 39.9m. It can hold a maximum internal payload of 1,452kg and external payload of 1,089kg.
Mission capabilities of MQ-4C Triton BAMS UAS
The MQ-4C is a high-altitude, long-endurance UAS, suitable for conducting continuous sustained operations over an area of interest at long ranges. It relays maritime intelligence, surveillance and reconnaissance (ISR) information directly to the maritime commander.
The UAS can be deployed in a range of missions such as maritime surveillance, battle damage assessment, port surveillance and communication relay. It will also support other units of naval aviation to conduct maritime interdiction, anti-surface warfare (ASuW), battle-space management and targeting missions.
The MQ-4C is capable of providing persistent maritime surveillance and reconnaissance coverage of wide oceanographic and littoral zones at a mission radius of 2,000nm. The UAS can fly 24 hours a day, seven days a week with 80% effective time on station (ETOS).
Payloads of Northrop’s unmanned system
The payload is composed 360° field of regard (FOR) sensors including multifunction active sensor (MFAS) electronically steered array radar, electro-optical / infrared (EO/IR) sensor, automatic identification system (AIS) receiver and electronic support measures (ESM). The payload also includes communications relay equipment and Link-16.
The MTS-B multispectral targeting system performs auto-target tracking and produces high-resolution imagery at multiple field-of-views and full-motion video. The AN/ZLQ-1 ESM uses specific emitter identification (SEI) to track and detect emitters of interest.
Engine and performance of the US’s UAS
MQ-4C Triton is powered by a Rolls-Royce AE3007H turbofan engine. It is an advanced variant of the AE3007 engine in service with the Citation X and the Embraer Regional Jet. The engine generates a thrust of 8,500lb.
The UAS can fly at a maximum altitude of 60,000ft. It has a gross take-off weight of 14,628kg. Its maximum unrefuelled range is 9,950nm and endurance is 30 hours. The maximum speed is 357mph.
Ground control station
The UAS is operated from ground stations manned by a four-man crew, including an air vehicle operator, a mission commander and two sensor operators.
The ground station includes launch and recovery element (LRE) and a mission control element (MCE).
The MCE performs mission planning, launch and recovery, image processing and communications monitoring.
The LRE controls related ground support equipment as well as landing and take-off operations.
Specifications
| Crew | Unmanned – 4 personnel fly aircraft from groundstation |
| Payload | |
| Length |
47 ft 7 in (14.5 m) |
| Wigspan | 130 ft 11 in (39.9 m) |
| Height | 15 ft 5 in (4.6 m) |
| Empty weight | 14,945 lb (6,781 kg) |
| Maximum weight | 32,250 lb (14,630 kg) |
| Powerplant | 1 × Rolls-Royce AE 3007 turbofan engine, 6,495–8,917 lbf (28.89–39.66 kN) thrust |
| Maximum speed |
357 mph (575 km/h, 320 kn) |
| Cruising speed at sea level |
60 knots (69 mph, 111 km/h) |
| Range | 9,400 mi (15,200 km, 8,200 nmi) |
| Endurance | 30 hours |
| Ceiling in service |
56,000 ft (17,000 m) |
Operators
- Royal Australian Air Force – 6 on order
- United States Navy – 3 active; 68 planed.
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