Mission Specialist
Ally
A highly capable, modular underwater robot designed for versatile inspection, light intervention and confined-space operations.
4
Thrusters
300m
Depth Rating
Multi-Mission
Capbility
Mission Specialist
Ally
A highly capable, modular underwater robot designed for versatile inspection, light intervention and confined-space operations.
4
Thrusters
300m
Depth Rating
(Deep Config)
Multi-Mission
Capbility
The VideoRay Ally is a compact, highly capable remotely operated vehicle (ROV) designed for versatile inspection and light intervention tasks where manoeuvrability, portability and modularity are essential. Sitting between the Pro 5 and the Defender in the Mission Specialist range, Ally delivers enhanced control and payload capacity in a streamlined, deployable platform.
Built on VideoRay’s proven modular architecture, Ally combines vectored thruster control with high-definition imaging and compatibility with a wide range of tools and sensors. Its balanced design makes it particularly effective in confined spaces, flowing water and complex structures where precision positioning and stable operation are critical.
With shared components, common software and field-swappable modules across the Mission Specialist family, the Ally offers operational continuity, simplified maintenance and scalability. From industrial inspection and utilities work to offshore wind and specialist recovery tasks, Ally provides a dependable, adaptable solution for demanding underwater environments.
Depth Rating
300 metres
Max Tether Length
350 metres
Navigation
WaterLinked A50 DVL
Mobility
4-axis: Surge, Heave, Yaw & Sway
Weight
13.6kg (30lbs)
Size (L x W x H)
64.1 x 30.5 x 30.5 cm
Ally Benefits
Why choose the Ally
The Ally offers an ideal balance of capability, portability and modularity—making it a trusted solution for inspection and light intervention tasks where precision, flexibility and rapid deployment matter most. Designed to operate confidently in confined, complex and flowing-water environments, Ally helps teams work more efficiently while keeping systems simple and adaptable.
Whether supporting industrial inspections, utilities work or offshore renewable operations, the Ally delivers reliable performance without the overhead of a full intervention-class vehicle.
With stable four-thruster control and a compact frame, Ally allows operators to maintain accurate positioning in restricted and flowing-water environments—improving inspection quality while reducing operator workload and risk.
Built on VideoRay’s modular Mission Specialist platform, Ally can be rapidly reconfigured with different tools and sensors—minimising downtime and enabling teams to respond efficiently to new tasks without changing systems.
Lightweight, portable and capable of extended tether lengths, Ally supports operations in locations that are difficult to access—delivering greater reach and flexibility without the complexity of larger intervention vehicles.
Defender Features
What helps set it apart
The Defender pairs robust construction with a modular design to deliver high-performance results in demanding underwater environments. Its full HD camera, integrated navigation sensors, and seven thrusters ensure precise control, clear visuals, and reliable data capture across a wide range of subsea tasks.

Modular Architecture
Easily configurable platform with swappable components for rapid setup and mission flexibility.

Four-Thruster System
Provides full four-axis control for superior manoeuvrability in strong currents and confined spaces.

4K Tilting Camera
Delivers sharp, low-light imagery with a wide field of view—ideal for detailed inspections.

Integrated Navigation Suite
Includes depth, heading, and optional DVL sensors for precise positioning and control.

Extended Depth & Tether Options
Operates up to 1,500 metres with fibre optic tether for long-range missions.

Accessory Compatibility
Supports a wide range of tools and sensors, including sonar and manipulators.
ROV Capabilities
Underwater ROVs you can trust, wherever your mission takes you
VideoRay Mission Specialist Series vehicles are designed and built with flexibility in mind. The modular design enables easy maintenance and seamless integration with a variety of tools for a custom solution to your underwater challenges.
The Mission Specialist Ally has two float block options.
A rounded float block that excels in navigating confined
spaces and where shore power is available. The other is a
squared float block that enables the use of Subsea Batteries.
The Mission Specialist Ally is equipped with an Ultra 4K Smart Camera
that is not just a visual device but an intelligent partner capable of
advanced image processing and autonomous decision-making.
The Mission Specialist Ally is outfitted with four
high-performance Mission Specialist thrusters, delivering
impressive capabilities of 4 knots horizontal thrust, 1.5 knots vertical
thrust, and 1 knot lateral movement.
The Mission Specialist Ally seamlessly integrates with an optional
Reach Alpha manipulator, featuring a spring-loaded mounting system.
This innovative design ensures precise centering of the manipulator
during object retrieval, enhancing vertical thrust efficiency to new heights.
15,2000 Lumen Brightness Lights
Can be equipped with an optional BluePrint Oculus M750d, M1200d or M3000d Sonar.
Enhancing the Mission Specialist Ally's capabilities,
an optional upgrade includes the ability to perform
station keeping by harnessing the power of the
Waterlinked A50 DVL (Doppler Velocity Log)
Mission Specialist Ally
Navigate to
Features
Modular Architecture
Compact, configurable platform with field-swappable components—allowing rapid setup and easy adaptation to different inspection and light intervention tasks.
Four-Thruster Configuration
Vectored thruster layout provides stable, responsive control for precise manoeuvring in confined spaces and moderate currents.
4K Tilting Camera
High-definition camera with tilt capability delivers clear, low-light imagery and flexible viewing angles for detailed inspections.
Integrated Navigation Suite
Includes depth and heading sensors, with optional DVL support, enabling accurate positioning and improved situational awareness.
Extended Depth & Tether Options
Operates to up 450 metres with the performance tether, where required.
Accessory Compatibility
Supports a wide range of tools and sensors, including sonar systems, light manipulators and Atlantas Marine’s Storm camera.
Benefits
Operate with Precision in Confined & Complex Environments
Thanks to its stable four-thruster configuration and compact frame, the Ally enables accurate positioning in restricted spaces and moderate currents—helping operators work closer to assets with confidence while reducing manual intervention and operator fatigue.
Reduce Downtime and Adapt Quickly to New Tasks
Its modular, plug-and-play design allows rapid configuration changes, meaning less time in the workshop and more time in the field—supporting efficient operations across multiple projects with a single, adaptable system.
Reach More Locations, with Fewer Limitations
With options for extended tether lengths and portable deployment, the Ally can access hard-to-reach locations without complex surface setups—providing greater operational flexibility wherever inspection or light intervention work is required.
Specifications
Overview
Power Requirements: 110 / 220 VAC (approx. 1–2.4 kW, configuration dependent)
Total System Weight (Sub & OCC): Approx. 27–30 kg (configuration dependent)
Cases: 2 × watertight rugged hard cases
Owner’s Manual: Online digital documentation
System Tool Kit: Basic tool kit supplied
Communications Protocol: RS-485 and Ethernet
Warranty: 2-year limited manufacturer warranty
Depth Rating: 300 m
Size (L × W × H): 64.1 x 30.5 x 30.5 cm
Vehicle Weight (in air): Approx. 13.6kg (30lbs), configuration dependent
Ballast: Modular, field-adjustable
Camera
High Definition: With Ethernet interface (IP)
Video: Ultra 4k Smart Camera, 60 fps, 12.3 MP/180Ëš, Digital Pan/Tilt/Zoom
Mechanical: Standard VideoRay 9 pin connection Ethernet, 12 VDC, RS-485 Auto or Manual Focus Optical Glass Dome
Features: 1 TB SSD Auto-White Balance Electronic Focus Image Unwarp Digital Pan, Tilt, and Zoom Color Enhancement
Interface: Ethernet
Compression: MJPG
Power
400 VDC power module
1500 W @ 48 VDC
Full monitoring of input voltage, output current, temperature
Operator Control Console (OCC), Workhorse Splashproof Controller
Power Input: Universal Input 85-264, VAC 47-440 Hz 2.4 kW Max Power (chassis)
Power Output: 2.3 kW Max at 400V (90%) efficiency 48V (HMI interface)
Display: HD Daylight Viewable Monitor
Weight: 15.2 kg (33.6 lbs)
Case: Water tight 0.62 x 16.87 x 8.12 in (52.37 x 42.85 x 20.62 cm)
Processing: Integrated i7 system processor
Controller: Industrial Programmable Hand Controller
Safety: Integral Line Isolation Monitor Emergency Kill Switch
Propulsion
Brushless thruster with integrated controller
Thrust
Forward: 16.8 kg
Reverse: 15.0 kg
Lateral: 6.1 kg
Surface: 9.5kg
Speed
Forward: 4.0 kts
Vertical: 0.8 m/s
Sway: 0.9 kts
Lighting
LED
2 independent light arrays (38 Watts max ea.)
60° spot beam 110° flood beam
Each array can be individually controlled
3,000 K CCT, 80 CRI White
7,600 total lumens per LED light module; 15,200 lm total light
IMU
9 DOF IMU and magnetic compass
Pressure based depth sensor:
100 Bar, with 400 Bar optional
0.2° Static Roll/Pitch
0.5°Dynamic Roll/Pitch
1.0° Yaw
18°/h/ Gyro Bias stability








































