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 worldwide.

The **NORBIT WINGHEAD i77h** is a compact, ultra-high-resolution multibeam sonar system engineered for demanding underwater survey tasks. This curved array sonar excels in bathymetric mapping, pipeline and cable inspections, and operations with uncrewed surface vehicles (USVs), providing surveyors with detailed seafloor data in challenging environments.

Designed by NORBIT Subsea, the WINGHEAD i77h stands out for its lightweight and portable build, enabling rapid deployment on small vessels or USVs. Its true 1024-beam beamformer and 0.5 × 0.9-degree beam width capture fine-resolution imagery, backscatter, and depth measurements, making it ideal for precision work in shallow waters, harbors, rivers, and coastal zones.

What is the NORBIT WINGHEAD i77h?

The WINGHEAD i77h is part of NORBIT's pioneering WINGHEAD series, recognized as the first cylindrical ultra-high-resolution curved array bathymetric sonar systems. It integrates advanced analogue and digital signal processing on a modern platform, delivering roll-stabilized bathymetry alongside high-quality water column imagery and backscatter outputs.

Key technical features include integrated GNSS/INS for accurate positioning and real-time sound velocity profiling to ensure reliable depth calculations. These elements contribute to its acoustic robustness, allowing consistent performance even in noisy or variable underwater conditions.

The system's dedicated pipeline mode optimizes beam patterns specifically for inspecting underwater pipelines and cables, a critical application in offshore energy and telecommunications infrastructure maintenance.

Core Functions and Technical Capabilities

At its core, the WINGHEAD i77h functions as a multibeam echo sounder, emitting acoustic pulses across a wide swath to map the seabed in high detail. The ultra-narrow beam width of 0.5 degrees athwartship and 0.9 degrees along-track enables resolution down to centimeters in optimal conditions, surpassing many competitors in shallow-water precision.

Roll stabilization compensates for vessel motion, maintaining data quality during surveys from moving platforms. The 1024 simultaneous beams cover extensive areas efficiently, reducing survey time while upholding accuracy standards required for engineering and construction projects.

Additional outputs like nadir beams and water column data support advanced analysis, such as detecting fish schools, sediment plumes, or small seabed features. This multifunctionality positions the i77h as a versatile tool beyond basic bathymetry.

Pipeline and Cable Inspection Mode

The pipeline mode adjusts the sonar's configuration to focus high-resolution imaging along linear targets like subsea pipelines and power cables. This mode enhances detection of anomalies, such as corrosion, free spans, or burial issues, which are vital for preventing leaks and ensuring infrastructure integrity.

Integration with USVs and UUVs

Its compact size—typically under 10 kg—and low power draw make it perfect for integration with uncrewed vehicles. USV deployments extend operational range into hazardous or remote areas, minimizing human risk while collecting data autonomously.

Primary Use Cases in Global Markets

In offshore energy, the WINGHEAD i77h supports pre- and post-lay surveys for oil and gas pipelines, wind farm cabling, and subsea installations. Accurate seabed mapping identifies hazards like boulders or unstable sediments that could damage installations.

Civil engineering applications include quay wall and bridge pier inspections, where high-resolution sonar reveals scour, cracks, or debris accumulation beneath the waterline. Harbor and port authorities rely on such data for dredging planning and maintenance.

Environmental monitoring benefits from its shallow-water capabilities in ponds, rivers, estuaries, and lakes. Agencies map sediment transport, invasive species habitats, or erosion patterns to inform conservation efforts.

Coastal surveys aid in shoreline management, flood risk assessment, and nautical charting, providing data for hydrodynamic models used by governments worldwide.

Why the WINGHEAD i77h Matters for Industry

For the hydrographic survey industry, the i77h addresses key demands for higher resolution in smaller packages. Traditional multibeam systems often require larger vessels, limiting access to inland or nearshore sites. This sonar's portability democratizes advanced surveying, enabling smaller operators to compete on quality.

In the growing offshore renewables sector, precise cable route surveys are non-negotiable for project approvals and insurance. The i77h's pipeline mode directly supports this, aligning with global expansion of wind farms in Europe, Asia, and the US.

USV adoption is surging due to cost savings and safety gains, with the i77h filling a niche for high-end sensors on these platforms. Industry reports highlight multibeam sonars as essential for autonomous hydrography, driving demand in defense, research, and commercial fleets.

Commercial Relevance and Market Dynamics

The global hydrographic survey market, valued in billions, grows with offshore infrastructure and climate monitoring needs. Multibeam sonars like the i77h capture a premium segment, where resolution and reliability command higher prices over frequency-based alternatives.

Competition includes systems from Teledyne RESON, R2Sonic, and Kongsberg, but NORBIT's curved array design offers swath coverage advantages in shallow depths. Supply chains for sonar components rely on precision electronics from Asia and Europe, with assembly in Norway ensuring quality control.

Regulatory standards from IHO (International Hydrographic Organization) mandate high-accuracy data for official charts, which the i77h meets through its certified performance. Adoption spans government hydrographers, private survey firms, and research institutes globally.

Explore NORBIT WINGHEAD i77h in action
YouTube showcases survey demos | LinkedIn connects with subsea tech professionals

Deployment and Operational Advantages

Setup is streamlined: mount the transducer, connect to a topside processor, and calibrate via intuitive software. NORBIT's ecosystem includes post-processing tools compatible with QPS Qimera and Hypack, standard in the industry.

Power efficiency suits battery-powered USVs for multi-hour missions. Operating frequencies around 350-700 kHz balance penetration and resolution for depths up to 200 meters, covering most nearshore applications.

Durability features titanium housings and pressure ratings to 100 meters, suiting diverse environments from Arctic surveys to tropical ports.

Consumer and Research Relevance

While primarily industrial, the i77h indirectly benefits consumers through safer infrastructure. Accurate port surveys prevent shipping accidents; river mapping aids flood predictions impacting communities.

Academic research uses it for seabed habitat mapping, contributing to fisheries management and marine protected areas. Universities and institutes worldwide deploy similar systems for long-term oceanographic studies.

Technological Edge in Sonar Design

The cylindrical array eliminates mechanical scanning, reducing failure points and enabling wider swaths—up to 140 degrees. Digital beamforming processes signals in real-time, minimizing latency for live feedback during surveys.

Compared to flat array sonars, the curved design provides uniform insonification across the swath, improving outer beam accuracy crucial for complete coverage.

Global Adoption and Case Examples

Survey firms in the North Sea use the i77h for decommissioning oil platforms, mapping debris fields precisely. In Asia, it's employed for port expansions amid booming trade volumes.

USV operators in Australia monitor Great Barrier Reef changes, leveraging its resolution for coral reef bathymetry.

Supply Chain and Manufacturing

NORBIT, based in Trondheim, Norway, manufactures the i77h with components sourced globally. The subsea division focuses on integrated solutions, bundling sonar with motion sensors and software for turnkey systems.

Availability through authorized distributors ensures worldwide support, with training programs enhancing user proficiency.

Rémy Cointreau and Product Context

Rémy Cointreau SA, listed under ISIN FR0000130395, operates Rémy Martin Cognac as a flagship luxury spirits brand. While primarily known for premium cognacs, the company's portfolio emphasizes high-end beverages.

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