




| Name | MQ-9B SeaGuardian |
| Manufacturer | General Atomics Aeronautical Systems |
| Country of Origin | United States |
| Type / Role | Maritime ISR UAV |
| First Flight / Introduced | 2018 |
| Status | In Service |
| Unit Cost | USD 30 Million (Approx.) |
| Maximum Speed | 390 km/h |
| Cruise Speed | 310 km/h |
| Operational Range | Global via SATCOM |
| Endurance | 40+ hours |
| Service Ceiling | 40,000 ft |
| Rate of Climb | 8 m/s |
| Length | 11.7 m |
| Wingspan | 24 m |
| Height | 3.6 m |
| Maximum Takeoff Weight (MTOW) | 5,670 kg |
| Payload Capacity | 2,155 kg |
| Hardpoints | 9 |
| Weapons | Optional precision guided munitions |
| Sensors | EO IR, Maritime Radar, AIS |
| Avionics | SATCOM, GPS INS, Mission Systems |
| Engine Type | Honeywell TPE331 Turboprop |
| Engine Power | 900 shp |
| Propeller Type | Variable Pitch Propeller |
| Control Type | Remote and Autonomous |
| Data Link Range | Line of Sight and SATCOM |
| Navigation | GPS INS |
| Ground Control Station | Fixed or Deployable |
| Primary Users | United States, NATO Allies |
| Combat Proven | Limited |
| Notable Operations | Maritime Patrol Deployments |
The MQ-9B SeaGuardian is a long endurance unmanned aircraft built for wide area maritime surveillance. Designed for oceans, coastlines, and contested sea lanes, it gives naval and joint forces persistent eyes over vast distances. The platform builds on the MQ-9 family but adds maritime specific sensors, extended endurance, and all weather operations. For the U.S. and allied navies, SeaGuardian fills a growing gap between crewed patrol aircraft and satellites.
The MQ-9B SeaGuardian is developed and produced by General Atomics Aeronautical Systems, based in California. It is part of the broader MQ-9B family, which also includes the SkyGuardian variant. The system was designed from the start to meet NATO airworthiness standards, allowing routine flight in civilian airspace.
SeaGuardian cruises at roughly 310 km/h, with a maximum speed near 390 km/h. Its biggest strength is endurance. With more than 40 hours of flight time, the drone can patrol thousands of kilometers using satellite control links. This makes it well suited for open ocean missions, choke point monitoring, and long duration ISR tasking.
The MQ-9B SeaGuardian is estimated to cost around USD 30 million per aircraft, depending on sensors and mission kits. Full system costs rise when ground stations, spares, and training are included.
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