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AROV: Anchoring Remote Operated Vehicle

Raptor AROV 2

Remotely operated seabed drilling and anchor installation, built for demanding offshore renewable sites.

Design depth
1,000 m
Cutting power
93.3 kW
Positioning
±3 ° vert
Install
1 slack water

The Raptor AROV 2 is a remotely controlled rig that drills into the seabed and installs anchors. It was built for high-energy tidal sites and floating wind developments, among the most demanding settings in offshore renewables.

Three things define it: positional accuracy, speed of installation and a reduced offshore footprint. The rig works with proprietary groutless self-drilling rock anchors, so an anchor goes in with far less vessel time and far fewer steps than conventional methods demand.

Working windows at such locations are short. At many tidal sites the whole operation has to fit inside a single slack-water period, and the rig was designed around that constraint from the outset. It matters for waters like those around Orkney and for the floating renewable projects that follow.

The Raptor AROV 2 seabed drilling rig, showing the mast and drill head, the power pack and the four outrigger legs
The Raptor drilling systems range

Environmental performance

  • A less intrusive installation method
  • Reduced disturbance of the seabed
  • Lower noise emissions
  • A smaller operational footprint overall

The rig is sized for smaller, lower-cost support vessels rather than full offshore construction spreads, and that changes project economics considerably. Nor does it work in isolation: AROV 2 sits inside a connected subsea toolkit covering inspection tooling, trenching systems, intervention crawlers and integrated vessel operations.

At a glance

Capability and performance

Single-Window Installation

Anchor installation completed inside one slack-water window, even at high-flow tidal sites.

Placement Accuracy

Anchors are set within ±3 degrees of vertical and fixed into the seabed, with placement controlled throughout.

Low Seabed Impact

A quieter, less intrusive anchoring method, with a smaller seabed footprint and lower volumes of cut rock.

Depth Capability

Designed to operate at depths of up to 1,000 metres.

Data sheet

Full specification

Construction

Length (Operating)5.2 m
Length (Transport)5.7 m
Width (Operating)5.2 m
Width (Transport)2.2 m
Height (Operating)6.9 m
Height (Transport)2.2 m (20' ISO)
Weight (in Air)11.5 t

Power & Control System

Input440 V @ 50/60 Hz
Subsea HPU200 kW
UmbilicalNexans RS680
Subsea Supply3.3 kV

Capability

Operating Depth200 m
Design Depth1000 m
Cutting Power93.3 kW
Core Sampling3.6 m, T6-H
Max. Anchor Diameter0.9 m
Max. Drilled Length3.0 m **

Drill Heads

Lower Head
Peak Torque14.0 kNm
Max Speed200 RPM
Upper Head
Peak Torque2.5 kNm
Max Speed403 RPM
Max Pull Up / Down Load15 t

Control Container

Configuration20 FT ISO
CertificationDNV 2.7-1
Winchpull4.5 t
HPU35 kW

Additional Information

Oil TypeBiodegradable
Fixed Cameras3x LUXUS PUR SD
Lights3x Bowtech LED K-Series
Pan & Tilt Cameras2x Spyball SSB-HDI
SonarGemini 720i (pan + tilt)

** Minor modifications to the mast permit 3.9 m · up to 0.8 m where additional upstand is available

Technical documents

Download the detail

Lower cost, lower risk, smaller footprint

Built to make large-scale offshore renewable infrastructure practical to install.

Talk to us about AROV 2