MQ-9B SkyGuardian vs MQ-9B SeaGuardian
SkyGuardian and SeaGuardian share the MQ-9B platform, but SeaGuardian emphasizes maritime mission equipment and integration. The difference is better understood through radar, vessel-related sensing and optional maritime packages than through a claim that the names identify wholly unrelated airframes.
Open these drones in the interactive compare toolSpecifications side by side
| Specification | MQ-9B SkyGuardian | MQ-9B SeaGuardian |
|---|---|---|
| Manufacturer | General Atomics | General Atomics Aeronautical Systems |
| Country of origin | USA | USA |
| Mission role | Multi-Role ISR / Strike | Maritime Domain Awareness / Anti-Submarine Warfare / Strike / ISR |
| Year introduced | 2018 | 2019 |
| Length | 11.7 m | 11.7 m |
| Wingspan | 24 m | 24.0 m |
| Height | 3.7 m | 3.8 m |
| Maximum speed | 388 km/h | 400 km/h |
| Published range | 11,000 km | 8,500 km |
| Endurance | 40+ hours | 40 hr |
| Service ceiling | 13,716 m | 15,240 m |
| Payload | 2,177 kg | 1,750 kg |
| Weight | 5,670 kg | 5,670 kg |
| Armament | AGM-114 Hellfire, GBU-39 SDB, Brimstone | AGM-114 Hellfire missiles, GBU-12 Paveway II laser-guided bombs, GBU-38 JDAM, Mk 54 lightweight torpedo; maritime radar, ISAR, AIS, EO/IR sensor suite |
Figures below come from the linked DroneStrike profiles and retain their configuration qualifiers. Maximum speed, range, endurance and payload are separate published figures, not a single achievable mission configuration. Range is not necessarily combat radius or datalink reach. Missing information is not zero, and a larger figure does not establish combat effectiveness.
The comparison that matters
Compare the installed equipment and customer requirement. A SeaGuardian maritime package may change payload allocation and mission planning; an advertised optional capability is not standard on every aircraft. Shared MQ-9B lineage does not justify assigning every maritime sensor to a SkyGuardian configuration.
Understanding MQ-9B SkyGuardian
SkyGuardian is an MQ-9B configuration designed around broader airspace-integration and customer mission requirements. It should be compared as its own system rather than as another spelling of the earlier MQ-9 Reaper.
Certification, airspace approval and aircraft delivery are separate events. Specific national approvals should not be generalized to all operators.
Understanding MQ-9B SeaGuardian
SeaGuardian applies the MQ-9B platform to maritime surveillance and related mission packages. Radar, vessel identification and other maritime equipment change the operational question even when the basic aircraft shares a family with SkyGuardian.
Optional maritime and anti-submarine equipment must be tied to a specified fit; a maritime role label does not establish every advertised capability.
How to read the specification table
The table compares the named MQ-9B SkyGuardian and MQ-9B SeaGuardian catalog records, not an artificial combination of every advertised upgrade. Values are reproduced with their existing units and qualifications. Where figures describe different missions or payload types, treat them as context rather than calculating an unsupported performance advantage.
A published maximum is not necessarily achievable alongside every other maximum. Endurance may change with equipment, flight or sea conditions and transit requirements; a range figure may describe a different constraint from datalink reach. Unknown specifications remain unknown. For development programs and limited-disclosure systems, an intended capability must stay distinct from a completed trial or operational service.
Frequently asked questions
What is the main difference between MQ-9B SkyGuardian and MQ-9B SeaGuardian?
SkyGuardian and SeaGuardian share the MQ-9B platform, but SeaGuardian emphasizes maritime mission equipment and integration. The difference is better understood through radar, vessel-related sensing and optional maritime packages than through a claim that the names identify wholly unrelated airframes.
Can the headline specifications establish a winner?
No. The mission, actual configuration, supported force and quality of evidence determine what the figures mean. Maximum speed, endurance and payload alone do not establish combat effectiveness, survivability or equal intelligence collection.
Where can I verify the versions and figures used here?
Follow the MQ-9B SkyGuardian and MQ-9B SeaGuardian profile links for full descriptions, timelines and any listed source references. This guide preserves the catalog's uncertainty labels rather than presenting unpublished or weakly sourced figures as independently verified facts.
Sources and further reading
- MQ-9B SkyGuardian: full catalog profile, timeline and source notes
- MQ-9B SeaGuardian: full catalog profile, timeline and source notes
Specifications are drawn from the linked catalog profiles. Source dates and aircraft configurations may differ; see the individual profiles for their timelines and qualifications.

