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Amphibious Assault Navigation
Continuous sea-to-land navigation in the most contested littorals
In contested littoral environments, GNSS jamming and spoofing threaten forces at the exact moment of maximum vulnerability: the transition from ship to shore. Maintaining navigation continuity across this sequence — without external signals, without reconfiguration — is the core challenge amphibious forces face today.
Amphibious assault operations expose forces to a narrow window of vulnerability: the transition from the mother ship to the shore. It is precisely during this phase — the swim phase, the surf zone, the first metres ashore — that GNSS jamming and spoofing threats are most likely to be activated by an adversary.
Loss of navigation during this window translates directly into formation incoherence, degraded shore approach timing, and unavailability of fire control. In an assault context, these effects cannot be recovered.
The limits of conventional navigation architectures
Traditional navigation systems are designed to operate in either a marine or a terrestrial environment. Deploying them in an amphibious context requires reconfiguration at the point of transition — creating a navigation data gap precisely where continuity is most critical.
Partially coupled multi-system solutions do not eliminate this problem: they displace it. When GNSS signals are denied and reconfiguration has not been completed, forces operate without reliable navigation in a contact zone.
What amphibious navigation must deliver
ADVANS VEGA SL
Uninterrupted navigation from Sea to Land
One system. Two environments. Zero compromise.
The Advans Vega SL is the latest addition to Exail's navigation portfolio, purpose-built for amphibious assault operations. It delivers on each of their requirements: uninterrupted navigation continuity, fire control readiness from the first metre ashore, full resilience to jamming and spoofing, and a seamless transition minimizing crew intervention — within a single system, built around Exail's Fiber Optic Gyroscope (FOG) technology and advanced proprietary transition algorithms.
Continuity across the full amphibious sequence
High-grade navigation performance
 | Advans Vega SL |
|---|---|
Heading (naval) | 0.05° |
Heading (land) | 0.5 mils |
Roll&Pitch (naval) | 0.01° / 0.01° |
Roll&Pitch (land) | 0.01° / 0.01° |
Dimensions (mm) | 178x178x162 |
