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System Reliability & Safety

Core structure

Two (2) separate hull structures, each hull divided in waterproof compartments.

“Best practice¨ design redundancy, core structure integrity and buoyancy in case of fire, puncture or collision.

Capability to stay afloat and operational with all compartments of one hull section flooded.

Drive line, propulsion, and 1st. line systems

Waterjet propulsion : no propeller entanglement (drifting nets etc…)

Each hull section has its own, standalone dedicated, propulsion, driveline, power generation and fuel supply.

Power generation
  • Five (5) on board energy generating systems and storages (battery banks)
  • All systems layered and cross-linked to provide 1st. line redundancy
  • Core systems separated by the two hull sections
  • Quadruple redundancy in power supply for core systems
  • Control, command and navigation with triple redundancy to survey and ROV payload packages
Auto pilot and Navigation

Two (2) autopilots and one ARPA Radar system :

  • Redundant operational navigation
  • Collision avoidance
Connectivity with Mobile Control Station (MCS) and Remote Operation Centre (RoC)

3+2 separate transceiver systems exchange information and data with the RoC

These are dedicated to control and monitoring

Systems redundancy when working Line-of-Sight (LoS) :

  • Main system Starlink or V-SAT
  • Backup system 1 : 4G - separate hardware and power supply
  • Backup system 2 : Sat-Com V-SAT or Starlink (OTH) – separate hardware and power supply
  • Backup system 3 : Sat-Com Iridium (OTH) – separate hardware and power supply

Systems redundancy when working Over-the-Horizon (OTH) :

  • Main system : Starlink or Sat-Com VSAT
  • Backup system : Sat-Com Iridium – separate hardware and power supply
Station holding / anchoring

Main system :

Both propulsion systems working together to perform 2 modes of operation

  • Dynamic positioning
  • Digital anchoring

Backup system 1 :

  • One propulsion system alone (hull section) can perform digital anchoring i.e. keeping its position in a designed geo-fenced area

Backup system 2 :

  • All (automatic) firefight, bilge pump systems and transponders are redundant
Safety systems

All (automatic) firefight, bilge pump systems and transponders are redundant

Safe Operating within the 500 nm Safety Zone
  • Propulsion system failure (one drive line) > 2nd driveline sufficient to exit from safe zone
  • Propulsion system failure (both drive lines/blackout) > Anchor drop to remain in position
  • Blow-out > onboard gas detection shuts down combustion engines automatically and switches over electrical propulsion (ATEX certified) to manoeuvre upwind or/and to a safe area.