David Evans and Associates has taken delivery of Teledyne Marine’s recently launched SeaBat T51-R Integrated Dual Head system, marking an important early adoption milestone following its launch at Oi2026.
The SeaBat T51-R Integrated Dual Head system enables full-rate dual-head performance from a single integrated platform. By removing the need for staggered pinging, the system allows surveyors to achieve wider swath coverage and significantly increased data density without reducing vessel speed, while maintaining the high-resolution performance of the T51 series.
Introduced at Oi2026, the system extends dual-head capability already established on the T20 and T50 platforms into the high-resolution T51 series. It supports both surface-vessel and deepwater remotely operated vehicle deployments, enabling survey teams to capture more detailed seabed data in less time and ultimately reduce overall operational costs.
The delivery also highlights a relationship between the US consulting firm and Teledyne RESON that spans more than three decades. David Evans and Associates (DEA) has collaborated with RESON on pioneering projects, system developments, and major survey projects across the United States. DEA was also among the first to deploy Teledyne multibeam systems for shallow-water bathymetry in the early 1990s.
DEA’s use of RESON sensors has evolved from early applications of the SeaBat 9001 through to the SeaBat T51 and Integrated Dual Head systems in use today. Applications include coastal and inland infrastructure inspections, site characterization and habitat mapping using normalized backscatter, navigation and nautical charting surveys, civil works design and construction surveys, cable and pipeline route surveys and inspections, and contaminated-site remedial investigation and design surveys.
Jon Dasler, Senior Vice President, DEA, commented, “The data quality of Teledyne’s technology is what keeps us coming back. With the SeaBat T51-R IDH we’re seeing a clear step forward in both data density, unprecedented resolution, and survey efficiency. That combination is critical for the kind of high-resolution work we do and we’re looking forward to deploying the system in operations.”
Kristine Beran, Sales Manager of Oceanographic/Scientific, Imaging & Instruments, Teledyne Marine, added, “DEA’s decision to invest in the T51-R IDH+ system is a strong endorsement of both the technology and our long-standing partnership. It’s also a clear indication of the momentum we’re seeing for the T51 series. As we mark 50 years of RESON innovation, it’s rewarding to see customers we’ve worked with for decades continuing to adopt our latest innovations – partnership like this is a powerful reminder of how collaboration in the field has shaped the technology.”
