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SPRINT-Nav U/UX

Small in size, mighty in performance

Engineered for

AUV ROV USV
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Overview

Small in size, mighty in performance

The class-leading capabilities and performance of SPRINT-Nav are now available for all your marine robotic operations. Increasing the performance of your survey and mission capability, no matter the size of your platform or operation.

Designed from over a decade’s experience gained across the SPRINT-Nav family, the SPRINT-Nav U range is the world’s smallest hybrid acoustic-inertial navigator. SPRINT-Nav U has been engineered with the same DNA as its larger siblings to provide, precise and robust guidance and navigation for when size matters and is ideally suited for small platforms. Scalable in performance, SPRINT-Nav U and UX provide tiered performance in one form factor.

A cylindrical Sonardyne SPRINT-Nav device with metallic ends and a blue central band, shown against a white background.

Find out what's possible

As with all SPRINT-Nav products, SPRINT-Nav U fuses AHRS, DVL, INS and depth data. All of this is now available in a single, ultra-compact and lightweight instrument giving you fast, precise and robust navigation, guidance and control information.

SPRINT-Nav U surpasses expectations in every way. With fast alignment, one unit, one connector, one cable and all the true-north seeking capabilities found across the SPRINT-Nav Family.

Select the performance level right for your operation:

  • SPRINT-Nav U: Quick to mobilise and the best value SPRINT-Nav for your operations. Achieve survey grade accuracy on any platform.
  • SPRINT-Nav UX: For missions where you need improved heading or positioning performance for better deliverables or reduced error when on target.

 

Game changing new capabilities for small robotic operations

Measuring just 126 mm in height and 114 (118 at DVL) mm in diameter and weighing a mere 1,000 grams in water, SPRINT-Nav U packs full SPRINT-Nav capability into the space traditionally filled by just a DVL on small subsea robotic platforms. With its compact fibre optic gyro (FOG) Inertial Measurement Unit (IMU) SPRINT-Nav U is a game changer for small vehicle operations.

It’s powered by the same trusted hybrid acoustic-inertial navigation algorithm you’ll find across the whole SPRINT-Nav family. This combines the strengths of all its sensors to provide robust, precise and accurate outputs. SPRINT-Nav U continues to work even in ferrous environments where Micro-Electro-Mechanical Systems (MEMS) based navigation, struggles. This means your operations are provided with a continuous stream of positions, orientation, velocities, depth and altitude even when operating in and around infrastructure.

Ready, set, go

Your SPRINT-Nav U arrives pre-calibrated, meaning there is no need to spend valuable time conducting in-field calibration manoeuvres every time a vehicle is mobilised. It’s the fastest aligning subsea navigator available in the market. Arrive on site, turn it on, give it a position and away you go.

SPRINT-Nav U uses the same, familiar and simple web user interface as the whole SPRINT-Nav family, meaning its, field proven and has ease of use built in. As is standard for SPRINT-Nav products, the output can be fed directly to your own (or a third party) user interface or vehicle control software.

Need to inspect offshore energy structures or port and harbour infrastructure? SPRINT-Nav U delivers accurate and continuous survey-grade navigational data. It’s unaffected by the materials in such structures. No need to deploy a large-scale vessel.

GNSS-denied environments are no obstacle. SPRINT-Nav U provides unparalleled navigational inputs for small vehicles and their payload sensors. Small AUVs, towfish and USVs get accurate seabed survey data. Every time.

Compact size and weight make all the difference. SPRINT-Nav U is easily man-portable, simple to deploy and retrieve from the back deck of a larger vessel. Ideal for multiple surveys across a wide area.

SPRINT-Nav U at a glance

  • 126 mm tall by 114 mm in diameter; the industry’s smallest all-in-one hybrid acoustic-inertial subsea navigator
  • Compact hybrid DVL-INS synergies dramatically improve both robustness and performance compared with standalone instruments.
  • Fly higher – 500 kHz DVL maintains bottom lock at up to 100 m altitude
  • Four instruments in one small package; AHRS, DVL, INS and pressure sensor – huge capability at optimised cost, size, weight and power (CSWaP)
  • Easy to integrate, simple to operate, web UI for configuration

Discover SPRINT-Nav U in action

Energy

Revolutionising small ROV navigation

Reliable marine robotics demand precise positioning and interference-free navigation to ensure safe surveys, repeat inspections, and accurate UXO detection in challenging environments.

Read more

Need help with your project, get in touch.

Software options to power your operations

\ Janus: All SPRINT-Navs come with Standard Janus to analyse your and improve your mission’s data. Janus Pro to takes your data even further, significantly improving performance.
\ API integrations: Our flexible API enables SPRINT-Nav to be deeply embedded in your control or survey system.
\ Origin Viewer: ADCP is a core competency of SPRINT-Nav. Record and view motion and velocity corrected ADCP data in Origin Viewer.

What's in the box: SPRINT-Nav

General

• Ideally suited for small subsea vehicle guidance, control and navigation
• Size, weight and power optimised
• Powered by our class-leading SPRINT hybrid navigation engine
• More compact and cost effective than the four separate sensors
• Gyrocompass simplicity with hybrid acoustic-inertial navigation performance
• Unaffected by proximity to ferrous objects
• Factory calibrated

Design

• Ultra-compact – 114 (118 at DVL) x 126 mm (excluding penetrator)
• 2.3 kg weight in air, 1.0 kg weight in water
• Water-blocked cable
• Subconn micro circular connector (8-way female)
• Titanium 1,000 m depth-rated housing

Performance

• True north seeking
• Provides 0.1% error for distance travelled (typical survey)
• Heading accuracy 0.15° secant latitude
• 0.02° pitch/roll accuracy
• 0.3/100 m min/max altitude
• 5 minute alignment with DVL
• Up to 200 Hz output rate

Ownership

• What’s in the box: SPRINT-Nav U, Origin Viewer, Janus
• Warranty: 1 year return to Sonardyne service centre
• ITAR controlled: No
• UK export licence: Yes
• Fitted with a 6Subconn MCIL8M 0.5m tail

Specifications

 

Performance SPRINT-Nav U SPRINT-Nav UX
DVL aided Typical survey 0.1% 0.05%
Distance from origin 0.45% 0.3%
Altitude min/max 0.3/100 m 0.3/100 m
USBL/GNSS & DVL aided Precision improvement Up to 4x better Up to 5x better
Heading (Secant latitude) with GNSS or USBL and DVL 0.15º 0.08º
With GNSS or USBL or DVL 0.2º 0.12º
Roll and pitch 0.02º 0.02º
Angular rate range ±850º/s ±495º/s
Pressure sensor 0.01% FS 0.01% FS
Power
Power requirements 24V dc ±10%, 8W nominal 24V dc ±10%, 8W nominal
Physical/comms
Data storage 64 GB internal memory 64 GB internal memory
Serial ports/protocol 1 RS232 (available on cable but not on Subconn MCIL8F) 1 RS232 (available on cable but not on Subconn MCIL8F)
Interfaces Ethernet, UDP/TCP, WebUI, 1 x trigger inputs/output (1PPS in/out or DVL trigger), NTP, ZDA out Ethernet, UDP/TCP, WebUI, 1 x trigger inputs/output (1PPS in/out or DVL trigger), NTP, ZDA out
Mechanical construction Titanium Titanium
Dimensions (diameter x height)

 114/118 x 126 mm (excluding penetrator) 114/118 x 126 mm (excluding penetrator)
Weight air/water 2.3 kg/1 kg 2.3 kg/1 kg
Environmental
Depth rating 1,000 m 1,000 m
Operating temperature -5 to 40°C -5 to 40°C
Storage temperature -25 to 55°C -25 to 55°C

 

Frequently asked questions

What’s in the box: SPRINT-Nav

What is PD0?

What is a SPRINT-Nav & hybrid navigation?

What interference might I get between Syrinx DVL and the other acoustic equipment on my vehicle?

Why have you chosen FOG, rather than RLG sensors?

Can you post-process SPRINT-Nav data?

Do I need to calibrate my SPRINT-Nav?

Deployment

SPRINT-Nav Mini HNAV message decoder

Resources

What is NavSync Pro?

STP files

SPRINT-Nav U – STP Files

Software and firmware

SPRINT-Nav Mini HNAV message decoder

Datasheets

SPRINT-Nav U – Datasheets

Manuals and quick start guides

SPRINT-Nav U – Manuals

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