Autonomous subsea systems
Hydrogen-electric autonomous systems designed to remain useful across real decision windows, with vehicle, payload, replenishment and logistics developed as one architecture.
Mission operating model
A vehicle must remain taskable, fuelled and serviceable for the full decision window. Andrasta designs the vehicle and its support model as one system.
Why compare the operating model?
In vessel-supported campaigns, recovery and turnaround can repeatedly reunite the vehicle and its support chain. Andrasta separates those dependencies so vehicles can follow waypoints, remain on task and use distributed sustainment until the information is actionable or the mission and service state calls for recovery.
Interactive mission comparator
Compare an illustrative vessel-supported campaign with Andrasta’s intended operating model. Support needs vary with vehicle, mission and communications configuration.
Mission planning must define when data is needed and whether it is retrieved on recovery or transmitted during deployment. Data access and re-tasking depend on the selected communications configuration.
Comparator
Vehicle, crew and support vessel move as one package.
Primary dependency
Support vessel
The support vessel carries the operating team and remains central to launch, recovery, charging and intervention.
Replenishable model
Waypoint tasking, long service intervals and portable fuelling are designed as one repeatable loop.
Actionable continuity
Decision window
Designed to observe across multi-day and multi-week decision windows. The selected communications configuration determines when observations become available to the operator.
Decision window
Periodic campaign snapshot
Multi-day / multi-week continuity
Mission state
Tasking within campaign windows
Waypoint, loiter or hibernate
Lifecycle
Recovery for energy + service
Recovery guided by service + condition
Mission 2028 · High Arctic
A clear public objective for Andrasta's cold-water endurance thesis, and a defining proof point for a system designed around persistence from the outset.
Dual-use by design
The vehicle and energy architecture remain common. Payloads, operating boundaries, evidence and procurement routes change with the mission.
Civil
Persistent environmental survey, subsea asset observation, inspection support, cable and pipeline monitoring, and decommissioning assurance.
Dual-use
Long-duration sensing, infrastructure awareness, controlled trials, and integration pathways for operators and prime contractors.
Near-term development
Manta closes physical and integration risk quickly. AndraSound carries the lead persistent architecture into an operationally useful platform.
Indicative system render
Compact winged demonstrator
Physical developmentRapid development + payload integration
A compact, field-portable vehicle for rapid physical development, subsystem proving, and payload trials. First prototype completed Q2 2026; first water trials planned for Q4 2026.
Indicative system render
Persistent mission platform
Pre-integration designPersistent survey + maritime awareness
The lead persistent mission platform, with platform architecture and pre-integration design defined. AndraSound development considers integration with state-of-the-art sensing, navigation and communications equipment within the sector. Compatibility is assessed for each mission configuration.
Supplier readiness
Quality, cyber, governance and supplier controls are developing alongside the vehicles, so procurement evidence does not become a late programme constraint.
ISO 9001
Certification target — preparation in progress
DEF STAN 05-138 Issue 4
CSMv4 readiness in development
Procurement evidence pack
Approved-supplier evidence in progress
Andrasta Marine works with operators, primes, payload partners, test facilities, and specialist suppliers to turn mission needs into integrated subsea capability.