NORBIT WINGHEAD i77h: Ultra-High-Resolution Multibeam Sonar

The NORBIT WINGHEAD i77h multibeam sonar delivers precise bathymetric surveys for pipeline inspections, USV operations, and coastal mapping, enabling accurate data in challenging underwater environments worldwide.

NORBIT WINGHEAD i77h is a compact, ultra-high-resolution multibeam sonar system designed for detailed underwater mapping and inspection tasks. This curved array sonar excels in delivering precise bathymetric data, making it essential for marine surveys conducted by uncrewed surface vehicles (USVs), shallow water operations, and infrastructure inspections.

The system features a 0.5 × 0.9-degree beam width, providing exceptional resolution for capturing fine details on the seafloor. With a true 1024-beam beamformer, it ensures accurate and consistent results across various environments, supported by industry-leading acoustic robustness.

What is the NORBIT WINGHEAD i77h Multibeam Sonar?

The WINGHEAD i77h represents a advancement in sonar technology as part of NORBIT Subsea’s WINGHEAD series, recognized as the first cylindrical ultra-high-resolution curved array bathymetric system. Its modern analogue and digital platform incorporates advanced signal processing for rapid mobilization and high-performance operations.

Key technical characteristics include integrated GNSS/INS for precise positioning and real-time sound velocity measurement, which enhances depth accuracy. The lightweight and compact design facilitates easy deployment and transport, ideal for field operations where mobility is critical.

Roll-stabilized bathymetry, high-quality imagery, and backscatter outputs are standard, allowing users to generate comprehensive datasets in a single pass. This makes the NORBIT WINGHEAD i77h suitable for professional surveyors seeking reliable performance without extensive setup time.

Core Functions and Technical Capabilities

At its core, the WINGHEAD i77h functions as a multibeam echo sounder, emitting acoustic pulses to map underwater topography with high precision. The dedicated pipeline mode optimizes beam patterns for inspecting pipelines and cables, detecting anomalies like corrosion or burial depth variations.

The system's 1024 beams provide dense coverage, enabling ultra-high-resolution imaging even in shallow waters. Acoustic robustness ensures operation in noisy or reverberant environments, such as harbors or estuaries, where traditional sonars might falter.

Integrated sensors for GNSS/INS and sound velocity profiling correct for motion, orientation, and environmental factors, delivering georeferenced data ready for analysis. Outputs include processed bathymetry, water column data, and backscatter for seabed classification.

Beamforming and Resolution Advantages

The true 1024-beam beamformer distinguishes the i77h by forming independent beams dynamically, improving swath width and resolution over phased-array alternatives. This results in point densities suitable for engineering-grade surveys.

Pipeline and Cable Inspection Mode

In pipeline mode, the sonar adjusts for elongated targets, enhancing detection along linear infrastructure. This is vital for offshore energy and telecommunications sectors maintaining subsea assets.

Primary Use Cases for the WINGHEAD i77h

Shallow water bathymetry is a primary application, where the system's resolution captures subtle features like sand waves or erosion patterns in rivers, ponds, and coastal zones.

Pipeline and cable inspection surveys benefit from the optimized mode, supporting routine maintenance and compliance checks for underwater utilities worldwide.

Quay wall, bridge, and structure inspections utilize the high-resolution imagery to assess scour, cracks, or biofouling without diver intervention.

Harbor, lake, and estuary surveys provide authorities with updated charts for navigation safety and dredging planning.

USV and UUV operations leverage the compact form factor, enabling autonomous missions for environmental monitoring or search-and-rescue support.

Coastal surveys aid in erosion studies, habitat mapping, and renewable energy site assessments, contributing to sustainable marine resource management.

Why the NORBIT WINGHEAD i77h Matters for Industry

In the global marine survey market, the WINGHEAD i77h addresses demands for higher resolution data from smaller platforms, driven by the rise of autonomous vehicles and remote operations. Industries like offshore oil and gas, renewables, and port management rely on such systems for risk reduction and operational efficiency.

Its deployment on USVs expands access to hazardous or remote areas, minimizing human exposure while maintaining data quality standards required by international regulations.

Commercial relevance stems from enabling faster surveys with less equipment, reducing costs in competitive bidding for survey contracts. The system's robustness supports year-round operations in varied conditions, from Arctic pipelines to tropical harbors.

For consumers indirectly, accurate surveys underpin safer shipping routes, cleaner water infrastructure, and protected coastal ecosystems, influencing tourism and fisheries.

Explore NORBIT WINGHEAD i77h demonstrations on YouTube for operational insights and LinkedIn for industry discussions on advanced sonar applications.

Technology and Integration Features

The WINGHEAD i77h integrates seamlessly with survey software like QPS Qimera or Navico EMAttitude, outputting standard formats for immediate processing. Real-time data visualization aids on-site decision-making.

Power efficiency and low weight (under typical sonar heads) suit battery-powered USVs, extending mission durations. The curved array design minimizes shadows in nadir regions, improving coverage uniformity.

Advanced signal processing filters multipath echoes, common in shallow or structured waters, ensuring clean datasets for volume calculations or change detection.

Positioning and Environmental Corrections

GNSS/INS fusion provides sub-centimeter accuracy, critical for repeat surveys tracking seabed changes over time.

Market Relevance and Competitive Landscape

The multibeam sonar market grows with offshore wind expansion and subsea cable networks for data centers, where high-resolution systems like the i77h fill needs for detailed route surveys.

Competition includes systems from Kongsberg and Teledyne RESON, but the i77h's compact size and pipeline focus differentiate it for niche USV and inspection roles.

Supply chain for sonar relies on precision manufacturing of transducers, with NORBIT's Norwegian engineering emphasizing quality control for global deployment.

Regulatory drivers like IMO standards for nautical charting demand verified high-resolution data, positioning verified systems favorably.

Deployment and Operational Advantages

Easy setup involves mounting on vessels or USVs, with plug-and-play connectivity reducing training needs. The system's portability supports rapid response for emergency inspections post-storms or incidents.

In USV applications, it enables swath widths up to 7-10 times water depth, optimizing coverage rates for large areas like lakes or coastal shelves.

For industrial users, consistent data quality streamlines workflows from acquisition to reporting, meeting client specifications for projects in energy, construction, and environmental sectors.

Consumer and Broader Societal Impact

While primarily industrial, the WINGHEAD i77h supports public goods like updated hydrographic charts for safer navigation, benefiting recreational boaters and coastal communities globally.

In environmental monitoring, backscatter analysis identifies sediment types or pollution hotspots, informing policy for marine protected areas.

Advancements in Shallow Water Surveying

Traditional single-beam sonars lack the resolution for modern needs; the i77h's multibeam approach provides 120-degree swaths in shallow waters, revolutionizing efficiency.

For bridge inspections, it maps scour holes without scaffolding, enhancing infrastructure safety assessments.

Future Applications and Adaptability

Emerging uses include AUV integrations for deep-water extensions and AI-enhanced processing for automated feature detection, expanding its role in digital twins of subsea assets.

The modular design allows frequency upgrades, future-proofing investments amid evolving survey requirements.

Updated: April 08, 2026

By Jane Harlow, Senior Editor for Consumer and Industrial Technology Coverage. The NORBIT WINGHEAD i77h exemplifies how compact sonar systems are reshaping marine surveying, balancing precision with deployability in a market prioritizing autonomy and efficiency.

Company Behind the Product

NORBIT Subsea, part of the NORBIT group, specializes in advanced sonar solutions for subsea applications. The WINGHEAD i77h is manufactured with a focus on innovation in underwater sensing technologies.

Fossil Group, Inc. (ISIN: US34959E1091), listed on public markets, operates diverse brands including Fossil watches; however, the sonar product stems from NORBIT's specialized subsea division.

Disclaimer: Not investment advice. Stocks are volatile financial instruments.